Climate in cities

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Unit 3:
Acid rain

Acid rain, acid fogs and acid snow directly and indirectly affect our health.  Breathing acid fogs can damage our respiratory system and acidic waters contain higher than average levels of heavy metals.  Drinking these waters can cause many serious diseases.

The main pollutants responsible for acid rain are the nitrogen oxides and sulphur dioxide.  It's easier to reduce emissions of these gases by saving energy and reducing car use than it is to prevent damage by acid rain.  Once the acid rain is formed all we can do is partially neutralise its effects with liming being the most widely used method.