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AIRBORNE DUST PARTICLES [14 records]

Record 1 2021-08-09

English

Subject field(s)
  • Human Diseases - Various
  • Respiratory System
CONT

Airborne diseases are caused by pathogenic microbes small enough to be discharged from an infected person via coughing, sneezing, laughing and close personal contact or aerosolization of the microbe. The discharged microbes remain suspended in the air on dust particles, respiratory and water droplets.

French

Domaine(s)
  • Maladies humaines diverses
  • Appareil respiratoire

Spanish

Campo(s) temático(s)
  • Enfermedades humanas varias
  • Aparato respiratorio
Key term(s)
  • enfermedad trasmisible por vía aérea
Save record 1

Record 2 2021-08-09

English

Subject field(s)
  • Microbiology and Parasitology
  • Human Diseases
  • Epidemiology
OBS

Airborne transmission occurs when infectious agents are transmitted through droplet nuclei, aerosols and dust particles that travel a distance of more than one metre.

OBS

Not to be confused with droplet transmission.

French

Domaine(s)
  • Microbiologie et parasitologie
  • Maladies humaines
  • Épidémiologie
OBS

La transmission par voie aérienne survient lorsque les agents infectieux sont transportés par des noyaux de condensation, des aérosols et des particules de poussière qui parcourent des distances de plus d'un mètre.

OBS

Ne pas confondre avec la transmission par gouttelettes.

Spanish

Campo(s) temático(s)
  • Microbiología y parasitología
  • Enfermedades humanas
  • Epidemiología
CONT

Transmisión por vía aérea. Producida a través del aire por difusión de partículas de menos de 5 [micrómetros] de diámetro, que les permite mantenerse en suspensión en el aire por períodos prolongados facilitando su desplazamiento a más largas distancias que las gotas al ser empujadas por corrientes de aire.

OBS

No confundir con transmisión por gotas.

Key term(s)
  • trasmisión por vía aérea
Save record 2

Record 3 2021-04-09

English

Subject field(s)
  • Air Pollution
  • Occupational Health and Safety
  • Welding and Soldering (Metals)
  • Restoration of Works of Art (Museums and Heritage)
CONT

Lead dust forms when solid materials are broken down into small particles. For example, dusts can be created when handling, grinding, sanding, polishing, or cutting lead or lead-containing materials. The dust can vary in size from large particles, which tend to fall to the ground, to fine particles, which can remain airborne for hours.

French

Domaine(s)
  • Pollution de l'air
  • Santé et sécurité au travail
  • Soudage (Métal)
  • Restauration d'œuvres d'art (Muséologie et Patrimoine)
CONT

La poussière de plomb est produite lorsque des matières solides se décomposent en petites particules. Elle peut ainsi résulter de la manipulation du plomb ou de matériaux qui en contiennent et de leur broyage, de leur sablage, de leur polissage ou d'activités de coupe. La taille de la poussière peut varier, passant de grosses particules qui tombent naturellement au sol, à des particules fines qui peuvent rester en suspension dans l'air ambiant pendant des heures.

Spanish

Save record 3

Record 4 2018-12-05

English

Subject field(s)
  • Air Pollution
DEF

An airborne plume of aerosol(liquid particles suspended in air) dust, fumes, gases, mist, or vapors containing toxic substances.

French

Domaine(s)
  • Pollution de l'air

Spanish

Save record 4

Record 5 2018-11-02

English

Subject field(s)
  • Paints and Varnishes (Industries)
CONT

Dry dust-free refers to the drying stage of a paint or varnish film at which airborne dust particles will not adhere to to the paint or varnish.

OBS

dust dry: term standardized by ISO.

French

Domaine(s)
  • Peintures et vernis (Industries)
DEF

Relatif à un vernis ou une vitrification suffisamment sec pour ne plus retenir la poussière.

OBS

hors poussière : terme normalisé par l'ISO.

Spanish

Save record 5

Record 6 2007-10-31

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

Flowing avalanches have a core and a dust cloud... The dust cloud is composed primarily of air with suspended snow particles and surrounds the exterior of the core. The height of the dust cloud can be tens of meters. The density of the dust cloud is usually less than 1%, e.g. air makes up more than 99% of the core.

CONT

When dry flowing avalanches exceed about 35 km/h(22 mph), a dust or powder cloud of airborne particles of snow moves above the denser flowing part.

CONT

The powder cloud travelled much further than the avalanche debris. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.]

OBS

powder cloud: term officially approved by the Avalanche Bulletin Terminology Standardization Committee.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Nuage résultant du mélange de poussières de neige avec l'air (concentration solide inférieure à 10%).

CONT

L'aérosol a dépassé la zone de dépôt. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]

OBS

aérosol; nuage de neige : termes uniformisés par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

PHR

Avalanche en aérosol.

Spanish

Save record 6

Record 7 - external organization data 2005-03-21

English

Subject field(s)
  • Waste Management
  • Mining Wastes
  • Radioactive Ores (Mining)
  • Compartment - Canadian Nuclear Safety Commission
CONT

The process by which dust becomes airborne is referred to as "dust emission. "For this to happen, energy is required to overcome the gravitational and cohesive forces binding dust particles to the surface. Potential dust emission that may be associated with mineral workings can be caused by : mechanical handling operations... ;haulage... ;blasting; ancillary "manufacturing" operation within quarries...

OBS

Dust emission data relate to "inhalable dust". This is the dust that can penetrate into a person’s lungs.

French

Domaine(s)
  • Gestion des déchets
  • Déchets miniers
  • Minerais radioactifs (Mines métalliques)
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Le radon est considéré comme étant la substance contaminante de contrôle pour ce qui est des rejets dans l'air. Ceci signifie que si les niveaux de contrôle du radon sont respectés, les émissions de poussière et les champs gamma sont nécessairement à des niveaux acceptables.

CONT

Lors du traitement industriel [de l'uranium appauvri], la production et l'émission de poussières fines (aérosols) sont à considérer en premier lieu.

Spanish

Save record 7

Record 8 2004-02-16

English

Subject field(s)
  • Air Pollution
DEF

Fine dust particles distributed as an aerosol in the air.

CONT

"Dust" means solid airborne particles that are mechanically generated.

French

Domaine(s)
  • Pollution de l'air
OBS

Les termes qui servent à désigner cette notion servent aussi à désigner des particules en suspension dans un liquide. Il est cependant inutile de préciser que les particules sont en suspension «dans l'air» si le contexte est clair.

OBS

«Matières» et «particules» sont des termes généraux qui, en pollution atmosphérique, peuvent désigner des solides (c'est souvent le cas) mais ils peuvent aussi désigner des particules liquides (parfois appelées «vésicules») dans le cas des aérosols ou des brouillards. En pollution de l'eau, bien sûr, les mêmes termes sont toujours synonymes de «particules solides».

Spanish

Campo(s) temático(s)
  • Contaminación del aire
Save record 8

Record 9 2002-11-22

English

Subject field(s)
  • Electric Motors
CONT

Dust-tight motors are necessary for chemical processes where dust represents a dangerous hazard. In these motors extended paths on bearing caps are machined to fine tolerances and special attention is paid to all joints, thus preventing the ingress of airborne dust particles down to about one micron in size.

French

Domaine(s)
  • Moteurs électriques

Spanish

Save record 9

Record 10 1999-03-29

English

Subject field(s)
  • Scientific Instruments
  • Atmospheric Physics
  • Air Pollution
DEF

An instrument for rapidly obtaining samples of airborne dust; a type of dust counter. Particles pass through a cylindrical chamber, are drawn at high velocity through a narrow slit, and then impinge upon a microscope cover glass located a short distance from the slit. An analysis for quantity and size of the particles on the cover glass is made with the aid of a microscope.

Key term(s)
  • Owens jet dust counter

French

Domaine(s)
  • Instruments scientifiques
  • Physique de l'atmosphère
  • Pollution de l'air
DEF

Instrument d'échantillonnage des poussières de l'atmosphère.

CONT

La pollution par les retombées de poussières est mesurée grâce à un réseau de jauges d'Owens.

OBS

pulvimètre [en anglais : «dust counter»] : Instrument de mesure de la quantité de poussières contenus dans un volume d'air donné.

Spanish

Save record 10

Record 11 1996-06-05

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay. Water flowing through a solid waste may leach out soluble radioactive material(e. g., the acid leachates of some uranium mine tailings). As well, solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

Key term(s)
  • solid fine particulate

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
OBS

Voir aussi «particule», «particules», «particules en suspension», «particules solides en suspension», «particules de poussière» et «aérosol».

Key term(s)
  • particule solide fine

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Save record 11

Record 12 1996-05-13

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay. Water flowing through a solid waste may leach out soluble radioactive material(e. g., the acid leachates of some uranium mine tailings). As well, solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

OBS

Usually in the plural form.

Key term(s)
  • non radioactive dust particle
  • non-radioactive dust particle
  • non radioactive dust particles

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
OBS

Terme généralement employé au pluriel.

Key term(s)
  • particule de poussière non radioactive

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Key term(s)
  • partícula de polvo no radiactiva
  • partícula de polvo no radioactiva
  • partículas de polvo no radioactivas
Save record 12

Record 13 1996-03-18

English

Subject field(s)
  • Air Pollution
  • Nuclear Waste Materials
CONT

Dusts are formed by the pulverization of solid matter into small size particles. These may be the result of such processes as grinding, crushing, blasting and drilling. Particle sizes range from 1 [micron] up to about 100-200 [microns]. Dust particles are usually irregular in shape. Examples include flyash, rock dusts and flour. They are heterogeneous in size and structure.

CONT

Low-level radioactive wastes can exist in solid liquid or gaseous form. Any solid waste may give off a radioactive gas, as in the case of Radium 226 which gives off Radon 222 when it undergoes alpha decay.... solid fine particulates of radioactive waste may take the form of a dust and be carried away on the wind, as in the case in the erosion of mine tailings. Equally, non-radioactive dust particles in the atmosphere can be contaminated with radon daughters as a result of electrostatic attraction. Furthermore, fine solid or liquid radioactive wastes can also take the form of aerosols that, once airborne, may be widely scattered.

OBS

Usually in the plural form.

Key term(s)
  • dust particle

French

Domaine(s)
  • Pollution de l'air
  • Déchets nucléaires
CONT

Ces particules de poussières microscopiques représenteraient de toute façon une fraction importante des nuages observés, puisqu'environ 10 % de la masse totale pourrait être sous forme de grains de taille inférieure à 0.005 micron.

OBS

Le terme «poussière» possède aussi un autre sens, plus général que la notion étudiée ici, où il devient synonyme de «particule». Bien sûr, dans une expression comme «particule de poussière», il reprend son sens spécifique : particule de moins d'un micron.

OBS

Terme généralement employé au pluriel.

Key term(s)
  • particule de poussière

Spanish

Campo(s) temático(s)
  • Contaminación del aire
  • Desechos nucleares
Save record 13

Record 14 1990-01-31

English

Subject field(s)
  • Air Pollution
  • Occupational Health and Safety
OBS

"respirable": Of a size small enough to be inhaled deep into the lung.

OBS

See also "respirable", "airborne particles", "airborne dust", "respirable suspended particulates" and "particulate matter" in Termium.

French

Domaine(s)
  • Pollution de l'air
  • Santé et sécurité au travail
OBS

Ces expressions sont quelque peu redondantes. Pour être inhalables, c'est-à-dire susceptibles de se déposer sur les poumons, les particules (de poussière, habituellement) doivent absolument être de petite dimension.

Spanish

Save record 14

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