As said in the chapter, automobiles play a big role in the urbanization of California. As a result of the abundance of cars, pollution is present. Just like California, Washington's main source of air pollution are motor vehicles.
"More than 50% of Washington's residents suffer from at least one medical condition that is made worse by air pollution." Greenhouse gases are also produced by motor vehicles. These greenhouse gases cause climate change, which then cause various weather events such as snow pack, low summer stream flows, more winter flooding. These gases also cause increased coastal erosion, reduced water supplies, and further loss of salmon habitat.
The Northwest Clean Air Agency (NWCAA) is one of the seven regional air quality control agencies located throughout the state. It was established in 1967 to enforce federal, state, and local air pollution regulations in certain counties in the state. NWCAA regulates over 425 sources of air pollution ranging from large refineries to gas stations to home fireplaces and wood stoves.
Source:
Northwest Clean Air Agency. Web. 01 May 2011. <http://www.nwcleanair.org/about/who.htm>.
"Washington's Vehicle Emission Check Program - Diesel Information Deisel - Exhaust - Vehicle Emissions - Emmisions - Emissioons - Ecology - Motor Vehicles - Clean Cars." Washington State Department of Ecology | Home Page | ECY WA DOE. Web. 30 Apr. 2011. <http://www.ecy.wa.gov/programs/air/cars/automotive_pages.htm>.
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