What it is
Air pollution sources
The air is polluted when one or more substances modify its characteristics making it harmful both for men and the environment. There are several pollution sources:
- burners (heating systems and thermoelectric plants)
- transports (spark-ignition engine)
industrial waste
The most dangerous pollutants are:
- carbon oxide (CO), that is very harmful for health
- sulphur dioxide (SO2), that provokes acid rain
- nitrogen oxides (NO), that are harmful for health
- benzene (C6H6), that is highly toxic
- ozone (O3), that is very harmful if inhaled
- fine dusts (PM10), that transport very poisonous substances to the lungs
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