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Latest ARS Environmental Management Stories

2011-07-07 19:10:52

Scientists with the U.S. Department of Agriculture (USDA) are identifying factors that influence pesticide levels in the Chesapeake Bay airshed, including traces of "legacy" pesticides that still linger even though they are no longer being used. Agricultural Research Service (ARS) chemists Laura McConnell and Cathleen Hapeman obtained weekly air samples and rain samples for precipitation events from 2000 to 2003 at three sites in Maryland and Delaware. Both scientists work at the ARS...

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2010-08-20 09:40:55

A comprehensive study of pollutants in a major Chesapeake Bay tributary revealed troublesome levels of nitrogen and copper that could flow into the Bay, according to U.S. Department of Agriculture (USDA) scientists and their cooperators.Scientists with USDA's Agricultural Research Service (ARS) and their collaborators conducted the study as part of the Conservation Effects Assessment Project (CEAP) for Maryland's Choptank River Watershed, which flows into the Chesapeake Bay. CEAP began in...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.