Sources of pollution in waterways
Tuesday, March 9, 2010 - 17:14
in Physics & Chemistry
Polycyclic aromatic hydrocarbons (PAHs) are components of petroleum products such as gasoline, coal, and oil. They are also produced as by-products of the combustion of fuels including petroleum and fire wood. PAHs can cause cancer and other health effects. Because they are produced during combustion, they are ubiquitous, and their levels are high enough to be a concern in all urban waterways. However, because there are so many potential sources of PAHs in the environment, it is not clear which of these sources are most responsible for the contamination in the water. Knowing what the major sources are would help states formulate more effective strategies to control them.