If we are to engage in a discussion of pollution of any kind, it should begin with the consequences. Take air pollution.
When those pollutants interact with light they produce a toxic gas called ‘ozone’ and that’s what causes the ... damage to the land, air or water. Outdoor air pollution in urban areas ...
These negative impacts include, among others, air pollution resulting from automobile ... Pendall, R. Do land use controls cause sprawl? Environment and Planning B 26, 555-571 (1999).