What is the difference between gaseous and particulate pollution of air?
Answers
In simple words gaseous pollutants are in the form of a gas in the atmosphere, e.g., nitrogen dioxide (NO2), sulphur dioxide (SO2), ground level ozone (O3), carbon monoxide (CO), VOCs etc, whereas particulate pollution which can also be called dust pollution or particulate matter are in the form of tiny particles. The size and composition of these particle vary. However the most dangerous for the human health are PM10 and PM2.5 (These are particle with aerodynamic diameter up to 10 micrometer and 2.5 micrometer, respectively). Fine and ultra-fine particles are mostly emitted by combustion processes, e.g., combustion process taking place in vehicle engines, whereas coarse particles are generated mostly by mechanical and physical processes, such as wear and tears of tyres, crushing machines, windblown dust and so on
Answer:
In simple words gaseous pollutants are in the form of a gas in the atmosphere, e.g., nitrogen dioxide (NO2), sulphur dioxide (SO2), ground level ozone (O3), carbon monoxide (CO), VOCs etc, whereas particulate pollution which can also be called dust pollution or particulate matter are in the form of tiny particles. The size and composition of these particle vary. However the most dangerous for the human health are PM10 and PM2.5 (These are particle with aerodynamic diameter up to 10 micrometer and 2.5 micrometer, respectively). Fine and ultra-fine particles are mostly emitted by combustion processes, e.g., combustion process taking place in vehicle engines, whereas coarse particles are generated mostly by mechanical and physical processes, such as wear and tears of tyres, crushing machines, windblown dust and so on
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