When we talk about greenhouse gases in the general public, we tend to limit ourselves to carbon dioxide, a practical standard into which we can convert all the pollutants that contribute to global warming. Sometimes, methane is added to it, because of its power and its specificity (breeding emits a lot of it). But we forget, to remain practical and not to complicate the remarks, all the precursors of CO2these often short-lived products that then degrade to end up, more simply, by enriching the atmosphere with carbon.
Among these pollutants, aerosols have an important place. Under this generic term are grouped heaps of chemical compounds diffused in the form of gas carrying small particles, including the famous PM 2.5 – what we know as fine particles, often cited in the quality measurements of the air. urban look. These carbon compounds (for the most part) are therefore major contributors to air pollution, which is harmful both to the environment and human health, but also to that of animals and plants, including the crops that feed us. Aerosols, whether in the form of droplets or particles, are mainly emitted by factories, power plants, vehicle exhausts, etc.
CO2 and particles: two pollutions in one
Today, we dissociate air pollution which affects us directly, mainly in cities, and c
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