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Industrial lead pollution beat explorers to the South Pole by 22 years and persists today
Date:7/28/2014

1900 and remained high until the late 1920's, with brief declines during the Great Depression and the end of World War II. Concentrations then increased rapidly until 1975 and remained elevated until the 1990's.

Concentrations across the Antarctic continent have since declined, but still are about four-fold higher than before industrialization, despite the phase out of leaded gasoline and other mitigation efforts in many countries in the Southern Hemisphere, the report states.

"Our measurements indicate that approximately 660 tonnes (1.5 million pounds) of industrial lead have been deposited on the snow-covered surface of Antarctic during the past 130 years," McConnell said. "While recent contamination levels are lower, clearly detectable industrial contamination of the Antarctic continent persists today so we still have a ways to go."


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Contact: Justin Broglio
justin.broglio@dri.edu
775-762-8320
Desert Research Institute
Source:Eurekalert  

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