The largest sources of pollutants produced by human activities include motor vehicles and industry. Motor vehicles emit a wide variety of pollutants, principally carbon monoxide (CO), oxides of nitrogen (NOx), volatile organic compounds (VOCs) and particulates (PM10). In addition, photochemical reactions resulting from the action of sunlight on nitrogen dioxide (NO2) and VOCs from vehicles lead to the formation of ozone, a secondary long-range pollutant, which impacts in rural areas often far from the original emission site.
The activities look at air pollution and how it is monitored. Pupils can collect data for their own area and analyse it in terms of the levels of air pollution and the effect on human health. This is also a good resource for developing students data analysis and graph interpretation skills