TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

...to develop emission inventory for criteria pollutants, heavy metals and persistent organic pollutants...  1, record 1, English, - criteria%20pollutant

Record number: 1, Textual support number: 2 OBS

Source(s) : American term referring to common pollutants(SO2, VOCs, etc.) slowly being adopted by environmental specialists.  1, record 1, English, - criteria%20pollutant

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 OBS

pulsed fluorescence SO2 analyzer : pulsed fluorescence SO₂ analyzer.  2, record 2, English, - pulsed%20fluorescence%20sulfur%20dioxide%20analyzer

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

analyseur de SO2 par fluorescence pulsée : analyseur de SO₂ par fluorescence pulsée.  1, record 2, French, - analyseur%20de%20dioxyde%20de%20soufre%20par%20fluorescence%20puls%C3%A9e

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Indirect GHGs [greenhouse gases](such as CO, non-methane volatile organic compounds [NMVOC] and SO2) from industrial process activities, including asphalt roofing, road paving with asphalt, pulp and paper production, and production of food and drink have not been estimated.  1, record 3, English, - non%2Dmethane%20volatile%20organic%20compound

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Les émissions indirectes (telles que celles de CO, de composés organiques volatils non méthaniques [COVNM] et de SO2) résultant de procédés industriels comme l'asphaltage des toits et des routes, la production de pâtes et papiers et la production d'aliments et de boissons n'ont pas été estimées.  1, record 3, French, - compos%C3%A9%20organique%20volatil%20non%20m%C3%A9thanique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

Environment Canada. This National Emission Guideline encourages project proponents to develop and operate combustion turbine facilities in a manner which restricts emissions of oxides of nitrogen(NOx, sulphur dioxide(SO2), and carbon monoxide(CO).  1, record 4, English, - National%20Emission%20Guidelines%20for%20Stationary%20Combustion%20Turbines

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Environnement Canada. Dans la présente recommandation nationale sur les émissions, on incite les promoteurs du projet à mettre au point et à exploiter les installations des turbines à combustion de manière à limiter les émissions d'oxydes d'azote (NOx), d'anhydride sulfureux (SO2) et de monoxyde de carbone (CO).  1, record 4, French, - Recommandation%20nationale%20sur%20les%20%C3%A9missions%20des%20turbines%20%C3%A0%20combustion%20fixes

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

In the surroundings of city and industrial areas, the deposition pattern of different pollutants is affected by local as well as remote sources. A great deal of the deposition of sulphur and acid precipitation over South Scandinavia most probably originates from SO2 emissions from Great Britain and Central Europe.  2, record 5, English, - distant%20source

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Source d'émissions polluantes d'origine anthropique située à plus de 100 km ou à plus de 48 heures de transport atmosphérique de la zone de retombée des substances polluantes.  3, record 5, French, - source%20%C3%A9loign%C3%A9e

Record number: 5, Textual support number: 1 CONT

En 1972, après environ deux ans de préparation avec l'aide du Conseil Scandinave sur la Recherche Appliquée, le Conseil de l'O.C.D.E. a entrepris un programme de coopération technique pour mesurer le transport des polluants atmosphériques à longue distance (...). L'objectif du Programme était de déterminer l'importance relative des sources locales et éloignées des composés du soufre et leur contribution à la pollution de l'air d'une région donnée, l'accent étant mis en particulier sur la question de l'acidité des eaux de pluie.  4, record 5, French, - source%20%C3%A9loign%C3%A9e

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A proprietary mixture containing 12% sodium borohydride and 42% sodium hydroxide, which is added to a 50% solution of sodium hydroxide. The resulting mixture is reacted with SO2 solution to produce sodium hydrosulphite in aqueous solution for brightening mechanical pulp.  1, record 6, English, - Borol%26trade%3B

Record number: 6, Textual support number: 1 OBS

A trademark of Rohn and Haas Company.  2, record 6, English, - Borol%26trade%3B

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Mélange breveté contenant 12 % de borohydrure de sodium et 42 % d'hydroxyde de sodium. Le mélange réagit avec une solution de SO2 pour former une solution aqueuse d'hydrosulfite de sodium servant au blanchiment des pâtes mécaniques.  1, record 6, French, - Borol

Record number: 6, Textual support number: 1 OBS

Borol^MC : Marque de commerce de Rohn and Haas Company.  2, record 6, French, - Borol

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Many plants are sensitive to SO2 in the atmosphere and show damage at low concentrations. For broad-leaved plants, acute injury takes the form of lesions on both upper and lower surfaces, usually between the veins... In conifers, acute injury usually appears as a bright orange-red tip necrosis on current-year needles. [Source : Envirotips Manual on "Sulphur Dioxide", 1985, p. 65].  2, record 7, English, - acute%20injury

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

Dans le cas des plantes latifoliées, l'action aiguë du gaz sulfureux se manifeste par des lésions internervaires sur les faces supérieure et inférieure des feuilles [...] chez les conifères, l'action phytotoxique aiguë se traduit par une nécrose [...] [Source : Enviroguide "L'anhydride sulfureux 1985, p. 63].  2, record 7, French, - action%20aigu%C3%AB

Record number: 7, Textual support number: 1 OBS

L'action toxique d'un polluant se manifeste par un dommage aigu traduisant une réaction aiguë.  1, record 7, French, - action%20aigu%C3%AB

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

The removal of sulfur, as from molten metals or petroleum oil.  9, record 8, English, - desulfurization

Record number: 8, Textual support number: 1 CONT

In total, Volkswagen's power stations consume some 720, 000 tonnes of coal equivalent each year(tCE/a).... To ensure that they comply with threshold limit values, power station emissions are monitored continuously. Figures for SO2, NOx, CO, dust, desulphurization efficiency and flue gas volume are measured and recorded on a central emissions computer.  10, record 8, English, - desulfurization

Record number: 8, Textual support number: 2 CONT

In this paper we consider the relative usefulness of taxes on SO2 emissions as instruments to reduce environmental damages caused by acid rain phenomena. As an illustration, we examine the likely effects of the application of a hypothetical Spanish sulphur tax. Since it is possible to recognize the amount of sulphur dioxides which will be emitted in the combustion of different types of fossil fuels, a product tax accompanied by fiscal rebates for desulphurizing processes is used as a proxy of the genuine emissions tax.  5, record 8, English, - desulfurization

Record number: 8, Textual support number: 1 PHR

Continuous desulfuration.  11, record 8, English, - desulfurization

Record number: 8, Textual support number: 2 PHR

Wet deSOx process.  7, record 8, English, - desulfurization

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Action de débarrasser un produit du soufre ou d'un sulfure qu'il peut contenir.  4, record 8, French, - d%C3%A9sulfuration

Record number: 8, Textual support number: 1 CONT

En cas de teneurs trop élevées en anhydride sulfureux et en oxydes d'azote, le recours à une désulfuration et dénitration contribuera à réduire ces polluants gazeux.  5, record 8, French, - d%C3%A9sulfuration

Record number: 8, Textual support number: 1 PHR

Désulfuration continue.  6, record 8, French, - d%C3%A9sulfuration

Record number: 8, Textual support number: 2 PHR

Désulfuration par voie humide.  7, record 8, French, - d%C3%A9sulfuration

Record 8,  Textual support,  Spanish

Record number: 8, Textual support number: 1 DEF

Separación del azufre de una mena o de una masa de un metal.  2, record 8, Spanish, - desulfuraci%C3%B3n

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

The Energy conversion in which fuel is consumed to generate heat energy which is converted to mechanical energy and then to electricity in a generator.  2, record 9, English, - thermal%20generation

Record number: 9, Textual support number: 1 OBS

Normally, the fuel may be coal, oil, gas, or uranium (nuclear).  2, record 9, English, - thermal%20generation

Record number: 9, Textual support number: 1 CONT

The provinces most adversely affected by this change in the pattern of thermal generation are Alberta and Saskatchewan where we estimate SO2 and NOx emissions to have increased by 24% since 1980.  3, record 9, English, - thermal%20generation

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Conversion d'énergie où le combustible sert à produire de la chaleur qui est ensuite elle-même convertie en énergie mécanique, puis en électricité dans une génératrice.  3, record 9, French, - production%20thermique

Record number: 9, Textual support number: 1 OBS

Il s'agit, en général, de charbon, de pétrole, de gaz ou d'uranium.  3, record 9, French, - production%20thermique

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

The rate at which an atmospheric pollutant is transformed into a secondary pollutant.  4, record 10, English, - transformation%20rate

Record number: 10, Textual support number: 1 CONT

The rate of atmospheric oxidation of sulphur dioxide varies from less than 1% per hour to around 12% per hour, depending upon atmospheric conditions. As a consequence of this slow conversion rate, the SO2 emitted can influence the acidity of precipitation at other locations far removed from the point of emission.  2, record 10, English, - transformation%20rate

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Taux indiquant quelle fraction d'un polluant atmosphérique est transformée en polluant secondaire pendant une période donnée.  3, record 10, French, - taux%20de%20conversion

Record number: 10, Textual support number: 1 CONT

Le taux de conversion du bioxyde de soufre (SO2) en sulfate (SO4) a été étudié par plusieurs recherches et leurs résultats suggèrent un taux initial, alors qu'il est le plus élevé d'environ 1% par heure.  4, record 10, French, - taux%20de%20conversion

Record number: 10, Textual support number: 2 CONT

Un air très pollué comme celui de la vallée de l'Ohio, explique Gaston Paulin, favorise, près de la source, un taux de transformation rapide de SO2 en SO4, de l'ordre de cinq à dix pour cent par heure, tandis qu'un air moins pollué, comme celui du Québec ou de l'Ontario, aura un taux de conversion de l'ordre de 0,5 pour cent par heure.  5, record 10, French, - taux%20de%20conversion

Record number: 10, Textual support number: 1 OBS

Pour de plus amples renseignements sur cette notion, consulter le cahier de néologie sur les pluies acides (OLFNE 1985 no 40-41).  6, record 10, French, - taux%20de%20conversion

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 OBS

EMEP was founded by UNECE [United Nations Economic Commission for Europe], WMO [World Meteorological Organization] and UNEP [United Nations Environment Programme] in 1977. In 1983 it became a project under the Convention on Long-Range Transboundary Air pollution, itself under the auspices of the ECE Protection of the Environment framework. It is one of two regional networks, the other in North America, where a denser network of precipitation monitoring stations has been established to evaluate SO2 and NOX emissions and transport, in particular.  2, record 11, English, - Co%2Doperative%20Programme%20for%20Monitoring%20and%20Evaluation%20of%20the%20Long%2Drange%20Transmission%20of%20Air%20Pollutants%20in%20Europe

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 OBS

Appellation et abréviation confirmées par l'organisme.  3, record 11, French, - Programme%20concert%C3%A9%20de%20surveillance%20continue%20et%20d%27%C3%A9valuation%20du%20transport%20%C3%A0%20longue%20distance%20des%20polluants%20atmosph%C3%A9riques%20en%20Europe

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

Inco maintains even today that the stack is an effective long-term solution [to sulphur pollution and] is not a substantial contributor to acid rain. As an alternative means of reducing its sulphur dioxide emission, Inco announced plans in mid-1970 to construct another large sulphuric acid plant.  1, record 12, English, - sulphuric%20acid%20plant

Record number: 12, Textual support number: 2 CONT

While seeking this better technology, other options presently being considered include a combination of the following :(1) low sulphur coal,(2) hydrometallurgy,(3) coal gasification,(4) coal scrubbing-reducing the sulphur by washing,(5) acid plants-removing SO2 and converting it to sulphuric acid for various uses.  4, record 12, English, - sulphuric%20acid%20plant

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Usine, ou section d'une usine, qui assure la récupération de l'anhydride sulfureux afin de réduire ce type d'émissions atmosphériques et qui permet la transformation du soufre en vue de sa commercialisation sous forme d'acide sulfurique.  3, record 12, French, - usine%20d%27acide%20sulfurique

Record number: 12, Textual support number: 1 CONT

Bien que les tests de laboratoire se soient avérés positifs, des essais ultérieurs à l'échelle industrielle ont démontré que le projet ne parvenait qu'à éliminer 10 p. cent des gaz sulfureux contrairement au procédé classique, qui par la construction d'une usine d'acide sulfurique , parvient à en éliminer 40 p. cent. [...] l'on n'est même pas certain de trouver des débouchés pour l'acide sulfurique que l'on utilise généralement pour la production d'engrais chimique.  4, record 12, French, - usine%20d%27acide%20sulfurique

Record number: 12, Textual support number: 1 OBS

Pour de plus amples renseignements sur cette notion, consulter le cahier de néologie sur les pluies acides (OLFNE 1985 no 40-41).  5, record 12, French, - usine%20d%27acide%20sulfurique

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

Dense-Phase Furnace Sorbent Injection. ... DP-FSI is a Dense Phase - Sorbent Injection System that is simple, yet highly effective. The unique dense phase transport system injects a dry sorbent into the furnace or other appropriate injection points, efficiently removing acid gases from the combustion gas stream before they reach the atmosphere. The sorbent reacts with the acid gases to form a solid which is removed in the particulate control system.  3, record 13, English, - furnace%20sorbent%20injection

Record number: 13, Textual support number: 2 CONT

Furnace sorbent injection represents an approach for achieving moderate levels of SO2 reduction in coal-fired boilers.  4, record 13, English, - furnace%20sorbent%20injection

Record number: 13, Textual support number: 1 PHR

Dry sorbent injection, furnace sorbent slurry injection.  5, record 13, English, - furnace%20sorbent%20injection

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 OBS

Des chaudières.  1, record 13, French, - injection%20de%20sorbant%20dans%20le%20foyer

Record 13,  Textual support,  Spanish

Record number: 13, Textual support number: 1 OBS

De las calderas.  1, record 13, Spanish, - inyecci%C3%B3n%20de%20sorbente%20en%20el%20hogar

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

A treatment, most often SO2, but in some cases H2SO4 or HCl, applied a) After a final chlorine dioxide, hyprochlorite or peroxide stage to destroy residual bleaching agent and remove metal ions which prevents brightness loss and avoids fibre degradation, and to create a pH favourable for brightness stability(alkaline pulps tend to yellow on exposure to light and air) ;b) As a pretreatment before an oxygen stage, which tends to improve both brightness and physical strength, probably by removing metal ions from pulp; and c) Between stages, such as peroxide-hydrosulphite, to eliminate the washing steps by creating acid conditions necessary for the hydrosulphite stage, and to destroy residual peroxide by reduction which would otherwise consume costly hydrosulphite; d) Has been used in place of a chelation stage in a TCF sequence with peroxide. In this application the PH is very important.  1, record 14, English, - acid%20treatment

Record number: 14, Textual support number: 1 OBS

SO2 and H2SO4 should be read : SO₂ and H₂SO₄.  2, record 14, English, - acid%20treatment

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Traitement pour lequel le SO2 est le plus souvent utilisé. Dans certains cas, on utilise également le H2SO4 ou le HCl. a) Utilisé en fin de séquence, après un traitement au bioxyde de chlore, à l'hypochlorite ou au peroxyde, il permet de détruire les résidus d'agents de blanchiment et d'enlever les ions métalliques. Ce traitement prévient la perte de blancheur (jaunissement) et la dégradation des fibres. Bref, un pH favorable à la stabilité de la blancheur est obtenu (les pâtes alcalines ont tendance à jaunir sous l'action de la lumière et de l'air). b) Utilisé comme prétraitement avant un traitement à l'oxygène ou un stade de peroxyde d'hydrogène, il permet d'améliorer à la fois la blancheur et les propriétés physiques, en solubilisant les métaux de transition. c) Entre deux stades tel que peroxyde et hydrosulfite, il permet d'éliminer l'étape de lavage en créant les conditions acidiques nécessaires à un traitement à l'hydrosulfite, et de détruire (par réduction) le peroxyde résiduaire, qui autrement consommerait l'hydrosulfite.  1, record 14, French, - traitement%20%C3%A0%20l%27acide

Record number: 14, Textual support number: 1 OBS

Dans le texte qui précède, on doit lire : SO₂ ainsi que H₂SO₄.  2, record 14, French, - traitement%20%C3%A0%20l%27acide

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

The sensitivity of lichens to sulphur dioxide is well known and Hawksworth et al. have attributed changes in lichen flora to this pollutant. Where the winter SO2 levels are [less than] 30 [microgram]/m3, lichen floras are almost identical to late 19th century floras.  1, record 15, English, - lichen%20flora

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 CONT

Dans une étude préliminaire nous nous sommes donnés comme objectifs : - de cartographier la pollution acide dans la région lyonnaise à partir de l'observation des espèces lichéniques [...] - de discuter de l'influence des facteurs climatiques sur la propagation et l'extension de cette pollution et de la flore lichénique.  1, record 15, French, - flore%20lich%C3%A9nique

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

Approvals. Control Orders and Regulations are currently used to negotiate specific emission objectives and schedules for SO2 emission sources. Approvals generally apply to new sources or to proposed modifications of existing sources, while Orders and Regulations are imposed on firms to curtail ongoing sources of SO2 emissions.  1, record 16, English, - emission%20objective

Record number: 16, Textual support number: 1 OBS

See also: deposition objective.  2, record 16, English, - emission%20objective

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Objectif dont les résultats s'évaluent en mesurant la quantité d'une substance émise par une source (généralement en tonnes par année).  2, record 16, French, - objectif%20en%20terme%20d%27%C3%A9missions

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 CONT

The pH in the stripping tours may be very acid according to the type of water treated, particularly if there has been pre-acidification of the water(desulphuration), or as a result of dissolving acid gases(CO2, SO2) in the water. Special attention must be paid to the problems of corrosion.  1, record 17, English, - pre%2Dacidification

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 CONT

Le pH régnant dans les tours de stripping peut être très acide suivant la nature des eaux à traiter, principalement s'il y a eu préacidification de ces eaux (désulfuration), ou par suite de la dissolution dans l'eau de gaz acides (CO2, SO2). On portera une attention particulière aux problèmes de corrosion.  1, record 17, French, - pr%C3%A9acidification

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 CONT

the mean concentration is calculated using composite or continuous sampling of a minimum period of 2 hours or using five samples with sampling periods as mentioned in Section 13 of this by-law, the sampling being equally distributed in an 8-hour working day.  2, record 18, English, - mean%20concentration

Record number: 18, Textual support number: 2 CONT

Data on ambient concentrations of [gaseous] pollutants in rural areas of the UK are sparse.... Nevertheless, estimates covering much of the country are available for mean concentrations of SO2..., oxides of nitrogen(NOx) and ozone....  3, record 18, English, - mean%20concentration

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 CONT

La concentration moyenne se calcule par des échantillonnages multiples ou continus d'une durée totale d'au moins 2 heures ou par 5 échantillonnages de la durée prescrite dans l'ouvrage visé à l'article 13 du présent règlement, lesdits échantillonnages étant répartis uniformément à l'intérieur d'une période de temps de 8 heures dans une journée de travail.  3, record 18, French, - concentration%20moyenne

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 DEF

... spray type furnaces used in acid plants or sulfite pulp mills to burn molten sulfur(S) to produce sulfur dioxide(SO2) gas which is used in the preparation of sulfite cooking acids.  3, record 19, English, - jet%20sulphur%20burner

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 DEF

Cylindre horizontal à l'intérieur duquel du soufre liquide est pulvérisé en fines gouttelettes et mélangé à une quantité d'air appropriée pour assurer sa combustion aux fins de production d'anhydride sulfureux.  1, record 19, French, - four%20%C3%A0%20soufre%20pulv%C3%A9ris%C3%A9

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 CONT

The reciprocal of the deposition velocity [on a snow surface] is called the total resistance. ... it follows after introducing the roughness length xyz for the wind profile [an equation] ... where the total resistance has been expressed as a sum of four positive resistances. ... the aerodynamic resistance (2) ... the boundary layer resistance which accounts for the physically different mechanisms of mass and momentum transfer at a rough surface. ... the surface resistance which is 0 for a perfect sink.  1, record 20, English, - surface%20resistance

Record number: 20, Textual support number: 2 CONT

... this result does not agree with average surface resistance of 1 to 10 cm used by the RADM model for similar condition, nor with a recent review of the deposition literature by xyz which recommends for modelling an average surface resistance for SO2 to snow of 7 s cm [superscript-1].  2, record 20, English, - surface%20resistance

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 OBS

lié à la notion de "rugosité" (en anglais : "roughness"). Il s'agit de la résistance offerte par la surface du sol à l'écoulement des polluants (dépôts secs) dans leur chute.  1, record 20, French, - r%C3%A9sistance%20de%20surface

Record number: 20, Textual support number: 2 OBS

"rugosité" : État d'une surface représentant des aspérités ou des ondulations, de plus ou moins faible amplitude, opposant une résistance à l'écoulement. Les modèles de transport à grande distance des polluants utilisent des données sur les émissions, la rugosité et les types de sols ainsi que des données météorologiques. (Source : BT-175 : Voc. de la pollution atmosphérique de Denis Rivard].  1, record 20, French, - r%C3%A9sistance%20de%20surface

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 CONT

Sulphate in precipitation may result from entrainment of particulate SO4 or from absorption and solution of SO2 or H2S with subsequent oxidation to SO4. About 75 percent of the atmospheric sulphur over Northern Europe originates from human activity.  1, record 21, English, - atmospheric%20sulphur

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 CONT

Le soufre atmosphérique est présent sous forme de composés qui interviennent en phase gazeuse, liquide ou solide. Les principaux composés gazeux sont SO2,H2S. A ceux-ci viennent s'ajouter de faibles quantités de composés minéraux ou organiques (SF6,(CH3)2S,CS2 etc.( ainsi que des produits de réactions intermédiaires.  1, record 21, French, - soufre%20atmosph%C3%A9rique

Record number: 21, Textual support number: 1 OBS

Le soufre se rencontre surtout sous forme d'anhydride sulfureux dans l'atmosphère; il arrive donc souvent qu'une relation de synonymie s'établisse entre le soufre et ce composé du soufre.  2, record 21, French, - soufre%20atmosph%C3%A9rique

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

A flowsheet incorporating a two stage leach with an additional SO2 reduction step to decompose lead jarosite was developed, and an up-dated engineering and economic assessment of the process was completed and a report issued.  2, record 22, English, - lead%20jarosite

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 CONT

On a préparé un schéma de processus comprenant une lixiviation en deux phases et une étape additionnelle de réduction du SO2 pour décomposer la jarosite de plomb.  1, record 22, French, - jarosite%20de%20plomb

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 CONT

Preliminary studies on the interaction of pyrrhotite with SO2 were carried out using differential thermal analysis(DTA), optimal microscopy, electron microprobe analysis and X-ray diffraction.  1, record 23, English, - electron%20microprobe%20analysis

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 CONT

Des études préliminaires sur l'interaction de la pyrrhotite avec le SO2 ont été effectuées; elles faisaient appel à l'analyse thermique différentielle (ATD, à la microscopie optique, à l'analyse par microsonde électronique et à la diffraction X.  1, record 23, French, - analyse%20par%20microsonde%20%C3%A9lectronique

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 CONT

The dual-alkali wet flue gas desulfurization process is the dominant sulfur oxide control technology for industrial boilers.  2, record 24, English, - dual%20alkali

Record number: 24, Textual support number: 2 CONT

The Chevrolet Pontiac Canada Group Plants... use a variation of the SO2 wet scrubbing system : a dual alkali scrubbing system in the coal fired power house.  3, record 24, English, - dual%20alkali

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 CONT

Le lavage avec double alcali est le procédé courant de réduction des oxydes de soufre dans les chaudières à usage industriel.  1, record 24, French, - double%20alcali

Record number: 24, Textual support number: 2 CONT

[...] il y a le procédé de double alkali où l'on utilise le carbonate de soude [...] qui est régénéré. Les produits dans ce cas-ci sont des boues de sulfate et de sulfite de calcium duquel on doit disposer. On utilise une solution de sulfite de soude qui contacte le SO2 pour produire le bisulfite de soude mais la différence avec le procédé Welman Lord est qu'ensuite on récupère le bisulfite en traitant la solution avec de la chaux qui est de l'hydroxyde de calcium pour produire un soluble de sulfite et de sulfate de calcium.  2, record 24, French, - double%20alcali

Record 24,  Textual support,  Spanish

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 CONT

The largest emitter of sulphur dioxide within Alberta is the Suncor(formerly Great Canadian Oil Sands) oil sands plant which is licensed to release 129, 000 tons of SO2 annually.  1, record 25, English, - emitter%20of%20sulphur%20dioxide

Record number: 25, Textual support number: 1 OBS

SO₂.  2, record 25, English, - emitter%20of%20sulphur%20dioxide

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 CONT

Actuellement, les plus importants émetteurs de dioxyde de soufre de l'agglomération lyonnaise sont déjà tenus de moduler leurs émissions lorsque les conditions de diffusion des polluants sont mauvaises.  1, record 25, French, - %C3%A9metteur%20de%20dioxyde%20de%20soufre

Record number: 25, Textual support number: 1 OBS

L'anhydride sulfureux (dioxyde de soufre) représentant 95% de la pollution par le soufre, il arrive que ce terme est pris comme synonyme de "soufre" et qu'il désigne tous les composés du soufre émis dans l'atmosphère.  2, record 25, French, - %C3%A9metteur%20de%20dioxyde%20de%20soufre

Record 25,  Textual support,  Spanish

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 CONT

Argonne National Laboratory has found that scavenging rates are relatively constant, and sulfur deposition by wet processes is a function of the half power of the amount of precipitation.  1, record 26, English, - washout%20rate

Record number: 26, Textual support number: 2 CONT

Parameter Values :... Effective washout rate for SO2=3 x 10^-5 1/sec.  1, record 26, English, - washout%20rate

Record number: 26, Textual support number: 3 CONT

Table 3-1. Regional Model Parameter values for Eastern North America Transport Simulations... SO2 wet removal rate 1. 2 x 10^-5.  1, record 26, English, - washout%20rate

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 DEF

Taux indiquant la masse totale d'un polluant atmosphérique qui s'est déposée, par voie humide, pendant une période donnée sur une surface unitaire.  3, record 26, French, - taux%20de%20lavage

Record number: 26, Textual support number: 1 CONT

Dans les calculs des modèles, 25 % environ des quantités émises par chaque élément de grille se sont déposés dans les limites du même élément. Le chiffre de 25 % comprend 15 % de dépôt dans le premier élément en plus des taux d'élimination appliqués tout au long des calculs. Ce chiffre de 15 % devrait en réalité être différent pour différents éléments, fonction de la structure du champ d'émission à l'intérieur de l'élément en question.  4, record 26, French, - taux%20de%20lavage

Record number: 26, Textual support number: 1 OBS

Pour de plus amples renseignements sur cette notion, consulter le cahier de néologie sur les pluies acides (OLFNE 1985 no 40-41).  5, record 26, French, - taux%20de%20lavage

Record 26,  Textual support,  Spanish

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 CONT

Ontario, the largest source of utility acid-gas emissions, is slightly cleaner than average with respect to NOx and slightly dirtier than average with respect to SO2.  1, record 27, English, - acid%2Dgas%20emission

Record 27,  Textual support,  French

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 CONT

We recognize that the control of SO2 in western Canada's power plants is expensive and difficult because of the low sulphur content of the input fuels. On the other hand, NOx control tends to be less expensive than SO2 control.  1, record 28, English, - NOx%20control

Record number: 28, Textual support number: 1 OBS

NO_x.  2, record 28, English, - NOx%20control

Record number: 28, Textual support number: 2 OBS

... nitrogen oxides (NOx) emissions ....  1, record 28, English, - NOx%20control

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 OBS

NO_x.  1, record 28, French, - contr%C3%B4le%20des%20%C3%A9missions%20de%20NOx

Record number: 28, Textual support number: 2 OBS

(...) oxydes d'azote (NOx) (...).  2, record 28, French, - contr%C3%B4le%20des%20%C3%A9missions%20de%20NOx

Record number: 28, Textual support number: 3 OBS

"Contrôle des émissions de NOx" : proposé par analogie à "contrôle des émissions de SO2", relevé dans CDN-17F, 1984, p. 22.  1, record 28, French, - contr%C3%B4le%20des%20%C3%A9missions%20de%20NOx

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 CONT

We recognize that the control of SO2 in western Canada's power plants is expensive and difficult because of the low sulphur content of the input fuels. On the other hand, NOx control tends to be less expensive than SO2 control.  1, record 29, English, - SO2%20control

Record number: 29, Textual support number: 1 OBS

SO₂.  2, record 29, English, - SO2%20control

Record number: 29, Textual support number: 2 OBS

SO2="sulphur dioxide" or "sulphur dioxide"(cf HACHE, 1981, p. 982 and DOPRO, 1978, vol. 1, p. 420).  2, record 29, English, - SO2%20control

Record 29,  Textual support,  French

Record number: 29, Textual support number: 1 OBS

SO₂.  2, record 29, French, - contr%C3%B4le%20des%20%C3%A9missions%20de%20SO2

Record number: 29, Textual support number: 2 OBS

SO2 = "anhydride sulfureux" et "gaz sulfureux" (cf DCHIM, 1978, p. 978).  2, record 29, French, - contr%C3%B4le%20des%20%C3%A9missions%20de%20SO2

Record 29,  Textual support,  Spanish

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 CONT

Available information indicates that nitrates are formed more rapidly than sulphates in the atmosphere and that they are also deposited closer to the source of emissions. Therefore it may be concluded that significant reductions in NOx emissions in Canada will result in corresponding reductions in nitrate deposition in this country. This is unlike the situation with SO2 emissions, where it is necessary to rely in part on emission reductions in the United States in order to achieve targeted sulphate loadings in this country.  1, record 30, English, - nitrate%20deposition

Record 30,  Textual support,  French

Record 30,  Textual support,  Spanish

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 OBS

NO₂.  2, record 31, English, - NO2%20injury%20threshold

Record number: 31, Textual support number: 2 OBS

... nitrogen dioxide (NO2) ....  1, record 31, English, - NO2%20injury%20threshold

Record number: 31, Textual support number: 1 CONT

Studies on combined exposures to NO2 and SO2 have found that the NO2 injury threshold can be significantly reduced in the presence of SO2. Responses to mixtures are related to concentration ratios, sequence of exposure and other variables.  1, record 31, English, - NO2%20injury%20threshold

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 OBS

NO₂.  2, record 31, French, - seuil%20de%20blessure%20du%20NO2

Record number: 31, Textual support number: 2 OBS

(...) dioxyde d'azote (NO2) (...)  1, record 31, French, - seuil%20de%20blessure%20du%20NO2

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 CONT

Much work has been done on bryophytes and lichens. the latter in particular have been used as indicator plants to reflect atmospheric concentrations of SO2 and other gases, but no clear relationship between plant distribution and patterns of acid rain has yet been demonstrated.  1, record 32, English, - atmospheric%20concentrations%20of%20SO2

Record number: 32, Textual support number: 1 OBS

SO₂.  2, record 32, English, - atmospheric%20concentrations%20of%20SO2

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 OBS

SO₂.  2, record 32, French, - concentrations%20de%20SO2%20dans%20l%27atmosph%C3%A8re

Record 32,  Textual support,  Spanish

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 CONT

Disease symptoms are inhibited in areas where SO2 concentrations exceed 100 [micrograms] m^-3. In this instance SO2 dissolved in the surface-water films suppresses the germination of Diplocarpon conidia, the effect being particularly marked at pH [inferior to] 4.  1, record 33, English, - surface%2Dwater%20film

Record 33,  Textual support,  French

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 CONT

Although these experiments helped to explain the changes occurring in Ringinglow bog, it should be emphasised that they relate to conditions where SO2 concentrations are strongly influenced by local sources. These conditions cannot be regarded as typical. In fact potentially injurious concentrations of HSO3-are unlikely to occur in normal rain.  1, record 34, English, - potentially%20injurious%20concentration

Record 34,  Textual support,  French

Record 34,  Textual support,  Spanish

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 CONT

As acidity of rainfall increases, absolute amounts of S(IV) in solution for a given SO2 gas concentration will decrease; however, the amount of SO2. H₂O is small and constant, depending only on the gas concentration.  1, record 35, English, - SO2%20gas%20concentration

Record number: 35, Textual support number: 1 OBS

SO₂.  2, record 35, English, - SO2%20gas%20concentration

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 CONT

A mesure que l'acidité de la pluie augmente, les quantités absolues de S(IV) en solution pour une concentration donnée de SO2 diminuent; toutefois, la quantité de SO2.H₂O est faible et constante, dépendant uniquement de la concentration du gaz.  1, record 35, French, - concentration%20de%20SO2

Record number: 35, Textual support number: 1 OBS

SO₂.  2, record 35, French, - concentration%20de%20SO2

Record 35,  Textual support,  Spanish

Record 36,  Textual support,  English

Record number: 36, Textual support number: 1 CONT

The effect of SO2 is governed in part by the sulphur status of the plant, in fact when sulphur is deficient entry through leaf ’pathways’ can compensate for lack of root-absorbed sulphate....  1, record 36, English, - root%2Dabsorbed%20sulphate

Record 36,  Textual support,  French

Record 36,  Textual support,  Spanish

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 CONT

The effect of SO2 is governed in part by the sulphur status of the plant, in fact when sulphur is deficient entry though leaf ’pathways’ can compensate for lack of root-absorbed sulphate....  1, record 37, English, - sulphur%20status

Record 37,  Textual support,  French

Record 37,  Textual support,  Spanish

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 CONT

Investigations have shown that 60-70 per cent of the potentially available amount of H ions in precipitation originates from SO2, and to some extent from H2S which have been oxidized to H2SO4... The acidity of precipitation also depends on the contribution of alkaline ions(e. g. Ca) which neutralize the acids... The local washout of alkaline ions exceeds that of acid ions.  1, record 38, English, - acid%20ion

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 CONT

Dans l'ammoniac liquide employé comme solvant, on peut définir NH+4 comme ion de l'acide et NH-2 comme ion de la base, le premier pouvant être considéré comme un ion d'hydrogène combiné à une molécule du solvant. Au contraire pour un solvant sans hydrogène comme l'anhydride sulfureux liquide, par exemple, cette extension est moins logique.  1, record 38, French, - ion%20de%20l%27acide

Record 38,  Textual support,  Spanish

Record 39,  Textual support,  English

Record number: 39, Textual support number: 1 CONT

The pH in the stripping towers may be very acid according to the type of water treated, particularly if there has been pre-acidification of the water(desulphuration), or as a result of dissolving acid gases(CO2, SO2) in the water. Special attention must be paid to the problems of corrosion.  1, record 39, English, - stripping%20tower

Record 39,  Textual support,  French

Record number: 39, Textual support number: 1 CONT

Le pH régnant dans les tours de stripping peut être très acide suivant la nature des eaux à traiter, principalement s'il y a eu préacidification de ces eaux (désulfuration), ou par suite de la dissolution dans l'eau de gaz acides (CO2, SO2). On portera une attention particulière aux problèmes de corrosion.  1, record 39, French, - tour%20de%20stripping

Record 39,  Textual support,  Spanish

Record 40,  Textual support,  English

Record number: 40, Textual support number: 1 OBS

Potassium salt which gives off SO2 in the presence of weak acids and is widely used as a means of adding SO2 to wines and musts.  1, record 40, English, - metabisulphite

Record 40,  Textual support,  French

Record number: 40, Textual support number: 1 OBS

Sel de potasse dégageant de l'anhydride sulfureux sous l'action des acides faibles; utilisé pour apporter ce gaz aux vins.  1, record 40, French, - m%C3%A9tabisulfite

Record 40,  Textual support,  Spanish