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Latest Pollution in the United States Stories

2012-04-27 11:26:00

Levels of copper, cadmium, lead and other metals in Southern California's coastal waters have plummeted over the past four decades, according to new research from USC. Samples taken off the coast reveal that the waters have seen a 100-fold decrease in lead and a 400-fold decrease in copper and cadmium. Concentrations of metals in the surface waters off Los Angeles are now comparable to levels found in surface waters along a remote stretch of Mexico´s Baja Peninsula. Sergio...

2012-04-27 00:10:25

Landmark legislation helped clean up LA's coastal waters over the past 40 years, study indicates Levels of copper, cadmium, lead and other metals in Southern California's coastal waters have plummeted over the past four decades, according to new research from USC. Samples taken off the coast reveal that the waters have seen a 100-fold decrease in lead and a 400-fold decrease in copper and cadmium. Concentrations of metals in the surface waters off Los Angeles are now comparable to...

2012-03-29 08:50:49

Rice University study finds federal efforts most effective at cutting pollutants In a recent study published by the Journal of the Air & Waste Management Association, the Rice research group of environmental engineer Daniel Cohan looked at state implementation plans (SIPs) mandated by the United States Clean Air Act. SIPs detailed how states would attain standards set by the Environmental Protection Agency (EPA) for cutting ozone and other ground-level contaminants by 2009. The...

2012-03-06 22:59:51

The costs to switch to numeric criteria for limiting nutrient pollutants in Florida waters are expected to exceed U.S. Environmental Protection Agency estimates, says a new National Research Council report. The committee that wrote the report questioned the validity of several assumptions in the EPA cost analysis and found that EPA did not adequately report on the uncertainties that could affect the cost of the rule change. In 2009 EPA decided that numeric limits on the concentration of...


Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
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