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What is the WHO definition of air pollution?
What is the WHO definition of air pollution?
- Presence of harmful chemicals or substances in the air that can cause harm to living organisms and materials
- Alteration of the atmospheric conditions due to the presence of pollutants from various sources
- High enough concentrations of chemicals or substances in the air to harm humans, animals, vegetation, or materials
- Contamination of the indoor or outdoor environment by any chemical, physical or biological agent that modifies the natural characteristics of the atmosphere (correct)
According to the EPA, what are air pollutants?
According to the EPA, what are air pollutants?
- One or more chemicals or substances in high enough concentrations in the air to harm humans, other animals, vegetation, or materials (correct)
- Any physical condition such as excess heat or noise in the atmosphere
- Presence of harmful gases in the air that affect the health of living organisms
- Chemicals or substances that alter the natural characteristics of the atmosphere
What are common sources of air pollution according to the text?
What are common sources of air pollution according to the text?
- Agricultural activities, construction sites, volcanic eruptions, and sea salt aerosols
- Household combustion devices, motor vehicles, industrial facilities, and forest fires (correct)
- Power plants, chemical manufacturing units, marine transportation, and waste disposal sites
- Mining operations, deforestation, urbanization, and natural gas extraction
What do meteorology and topography influence in relation to air pollution?
What do meteorology and topography influence in relation to air pollution?
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What effects do air pollutants have on receptors?
What effects do air pollutants have on receptors?
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