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Latest Clean Water Act Stories

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...

2012-03-06 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
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.