The era of air pollution started a few decades ago. Pollution is now a major environmental risk to public health in the major megacities. Each week has its new information about peaks of polluted air in Europe, Asia or America.

All human activities impact our environment. Some of them have become a stress factor for nature and human living conditions. And it is leading to various problems such as: respiratory troubles, DNA changes, premature ageing of the skin among others.

The pollution has various origins: agriculture, energy production, natural phenomena (volcano eruption, road transport, fuel combustion, methane synthesis… and the list is so long!).

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