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what is air pollution?
Que es la contaminación del aire?
_is a mixture of solid particles and gases in the air. Emissions from cars, factory chemicals, dust, pollen and mold spores can be suspended as particles.
what are the types of air pollution?
cuales son los tipos de contaminacion del aire?
_comes mainly from five human activities that release a range of substances, such as carbon monoxide, carbon dioxide, nitrogen dioxide, nitrogen oxide, ground-level ozone, particulate matter, sulphur dioxide, hydrocarbons and lead, all.
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