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surface air are trapped. 0% US Census Bureau, Statistical Abstract of the United States, 2000 http://www.airparif.asso.fr/english/prevision/inversionpollution.htm 11 67 Temperature Inversion:
The Donora Valley 68 Water Pollution
There are six types of water pollutants In October 1948, a temperature
inversion in the town of Donora,
PA trapped pollutants from nearby
steel and zinc smelters.
After 5 days, almost 6,000 people
were severely ill. Twenty died.
In 1950 President Harry Truman
convened the first national air
pollution conference, citing
Donora as an example of the need.
The kind of smog that caused the
Donora Valley disaster is
sometimes called a “sulfurous”
smog (even though other
chemicals, including fluorine, were
– Biodegradable wastes (sewage)
Plant nutrients (fertilizers, phosphates)
Hazardous and toxic chemicals (biocides)
Radioactive wastes There are three main sources of water
– Water-using industries (mostly point source)
– Municipal/sewage (point and non-point)
– Agriculture (mostly non-point) http://www.epa.gov/region02/epa30/air.htm;
http://www.smithsonianmag.si.edu/smithsonian/issues99/nov99/ 69 Industrial Water Pollution 70 Oil Spills About half the water used daily in the US is used
Industrial activities routinely discharge a variety
of chemicals (and heat) into our waters.
Industrial pollutants include
– PCBs (polychlorinated biphenyls)
– Radioactive waste
• In 1998 there were 8,315 recorded oil spills in US waters; over
885,000,000 gallons were spilled.
• In 2000 the Bureau of Transportation Statistics recorded 8354
oil spills totaling 1,431,370 gallons.
• In 2001 the US Coast Guard recorded 7,559 oil spills totaling
854,520 gallons, and 105 chemical spills totaling 271,429
gallons. 1 barrel of oil = 0.146 tonnes of oil – Thermal pollution 4,500,000 tonnes = 30,784,500 barrels
http://elearningexamples.com/the-worst-oil-spills-in-history/ 71 Mining Acid mine drainage, Pennsylvania Rainwater reacts with mine
waste to produce a variety of
Mine waste is a significant
problem in many parts of the
– Kentucky, Tennessee and West
Virginia (strip mining for coal)
– Utah, Nevada, New Mexico (gold,
silver, lead, copper, uranium mi...
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This note was uploaded on 12/16/2010 for the course GEOG 102 taught by Professor Osborn during the Fall '10 term at San Diego State.
- Fall '10