TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PHOTOCHEMICAL POLLUTANT [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-08-23

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
NO
formula
10102-43-9
CAS number
DEF

A colorless poisonous gas having the formula NO which is obtained by oxidation of nitrogen or ammonia in making nitric acid or by reduction of nitrous acid, which readily reacts with oxygen at room temperature to form nitrogen dioxide, NO2, a reddish brown gas, and which is used as an intermediate in the production of nitric acid from ammonia, in the preparation of nitrosyl carbonyls, and for bleaching rayon.

OBS

It is found in variable trace quantities in the atmosphere, especially near industrial areas.

CONT

Not in itself a pollutant, in the ambient air NO converts to nitrogen dioxide, a major contributor to photochemical smog.

OBS

nitrogen monoxide: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record.

OBS

nitric oxide: term adopted by Environment Canada; used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
NO
formula
10102-43-9
CAS number
OBS

Substance chimique [de formule NO] importante dans la catalyse de l'ozone.

OBS

monoxyde d'azote : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche; terme retenu par Environnement Canada : utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA).

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
NO
formula
10102-43-9
CAS number
OBS

Gas incoloro ligeramente soluble en agua. No combustible. Muy tóxico y fuerte irritante. Aviva la combustión.

Save record 1

Record 2 2010-10-22

English

Subject field(s)
  • Pollutants
  • Air Pollution
DEF

A pollutant that results from the chemical reactions involving primary pollutants or related atmospheric contaminants, for example, oxidants from photochemical activity.

French

Domaine(s)
  • Agents de pollution
  • Pollution de l'air
DEF

Polluant qui n'est pas émis directement dans un milieu mais dont la présence résulte de la transformation chimique d'autres polluants.

CONT

Un programme de recherche a été entrepris par l'Electric Power Research Institute (EPRI Project SURE) pour déterminer la relation existant entre les polluants primaires (SO2) et les concentrations ambiantes régionale en polluants secondaires (S04).

Spanish

Campo(s) temático(s)
  • Agentes contaminantes
  • Contaminación del aire
DEF

Contaminante que se forma por reacción de otros contaminantes.

OBS

Algunos autores distinguen entre contaminante y polutante. Consideran un contaminante como una sustancia que resulta de la actividad humana sin tener necesariamente efectos biológicos mientras que el polutante tiene origen en la actividad humana y produce efectos nocivos.

Save record 2

Record 3 1989-03-30

English

Subject field(s)
  • Environmental Studies and Analyses
  • Air Pollution
CONT

The SAI model is a photochemical dispersion model. It not only considers the transport and dispersion of pollutants but also the transformation of HC and NOx into photochemical oxidant pollutants.

French

Domaine(s)
  • Études et analyses environnementales
  • Pollution de l'air

Spanish

Save record 3

Record 4 1985-11-29

English

Subject field(s)
  • Air Pollution
CONT

... NOx can exert three different kinds of environmental effect. First, NOx is a direct pollutant; second, NOx can produce indirect pollutant effects by acting in combination with other pollutants to produce ozone and photochemical smog; and third, NOx from all sources, including motor vehicles, contributes to Canada's acid rain problem.

French

Domaine(s)
  • Pollution de l'air

Spanish

Save record 4

Record 5 1985-08-22

English

Subject field(s)
  • Air Pollution
CONT

In the early 1950s symptoms of plant injury found in some areas of the USA were for the first time linked with ozone and other photochemical (oxidant) pollutants ....

French

Domaine(s)
  • Pollution de l'air

Spanish

Save record 5

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