Air pollution comes from many sources. Some causes of air pollution are natural, such as volcanic eruptions, dust storms, decomposition of vegetation or radioactive decay within the earth’s crust, but most pollution is anthropogenic or human caused. These include combustion of fossil fuels from stationary or mobile sources, industrial processes, fumes from chemicals and solvents, waste decomposition in landfills, agriculture, or military actions.
The World Health Organization estimates that almost 2.5 million people die each year from causes directly attributable to air pollution. In recognition of National Clean Air Month and Asthma Awareness Month, this month we’ll tell you ways in which you can reduce your contribution to the problem.