Mississippi contaminants documented in first systemwide study
Article Abstract:
Jerry Leenheer, a chemist for the U.S. Geological Survey, reports that the Mississippi River contains significantly high levels of agricultural contaminants, but the level of contamination caused by polychlorinated biphenyls has dramatically been reduced. His findings are part of the data presented in the report entitled, 'Contaminants of the Mississippi River, 1987-1992,' which was released by the agency in Mar. 25, 1996. Other scientists involved in the study state that the results have serious implications to the balance of nutrients in the Gulf of Mexico because this is where the river empties its loads.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Researchers find unexpectedly high levels of contaminants in remote sea birds
Article Abstract:
High concentrations of persistent organic pollutants have been found in adult black-footed albatrosses living on Midway Island. According to an EPA-sponsored study conducted by the World Wildlife Fund, contaminants in these sea birds are almost as great as levels found in birds in the Great Lakes. The contaminants were identified as polychlorinated biphenyls, dioxins, furans and other dioxin-like chemicals. The high levels of contaminants in these remote sea birds have adverse reproductive effects.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Acid deposition may stunt forest growth, leach calcium, Hubbard Brook researchers report
Article Abstract:
Researchers at New Hampshire's Hubbard Brook Experimental Forest have launched a new project aimed at determining the effect of acid deposition on forest growth. The project is a follow-up to the research on the magnitude of calcium depletion in soils. More than 30 years of data on this research has been published in the Apr. 12, 1996, issue of 'Science.' With the new study, the researchers aim to address the impact of acidic deposition to soils and consequently, to the growth of deciduous forests.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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