Mercury contamination in farmed fish setup on former garimpo mining areas in the Northern Mato Grosso State, Amazonian region, Brazil
The garimpo gold mining activity has released about 2.500 tons of mercury in the Brazilian Amazonian environment in the 1980–1995 period. The northern region of Mato Grosso State, an important gold mining and trading area during the Amazonian gold rush is now at a turning point regarding its economi...
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| Veröffentlicht in: | The Science of the total environment 2005-09, Vol.348 (1), p.128-134 |
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| creator | Farias, R.A. Hacon, S. Campos, R.C. Argento, R. |
| description | The garimpo gold mining activity has released about 2.500 tons of mercury in the Brazilian Amazonian environment in the 1980–1995 period. The northern region of Mato Grosso State, an important gold mining and trading area during the Amazonian gold rush is now at a turning point regarding its economic future. Nowadays, the activities related to gold mining have only a low relevance on its economy. Thus, the local communities are looking for economic alternatives for the development of the region. Cooperative fish farming is one of such alternatives. However, some projects are directly implemented on areas degraded by the former garimpo activity and the mercury left behind still poses risks, especially by its potential accumulation in fish. The objective of the present study was to evaluate the levels of mercury contamination in two fish farming areas, Paranaíta and Alta Floresta, with and without records of past gold-washing activity, respectively. Data such as mercury concentration in fish of different trophic level, size, and weight as well as the water physical and chemical parameters were measured and considered. These preliminary data have shown no significant difference between these two fish farming areas, relatively to mercury levels in fish. |
| doi_str_mv | 10.1016/j.scitotenv.2004.12.038 |
| format | Article |
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The northern region of Mato Grosso State, an important gold mining and trading area during the Amazonian gold rush is now at a turning point regarding its economic future. Nowadays, the activities related to gold mining have only a low relevance on its economy. Thus, the local communities are looking for economic alternatives for the development of the region. Cooperative fish farming is one of such alternatives. However, some projects are directly implemented on areas degraded by the former garimpo activity and the mercury left behind still poses risks, especially by its potential accumulation in fish. The objective of the present study was to evaluate the levels of mercury contamination in two fish farming areas, Paranaíta and Alta Floresta, with and without records of past gold-washing activity, respectively. Data such as mercury concentration in fish of different trophic level, size, and weight as well as the water physical and chemical parameters were measured and considered. 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The northern region of Mato Grosso State, an important gold mining and trading area during the Amazonian gold rush is now at a turning point regarding its economic future. Nowadays, the activities related to gold mining have only a low relevance on its economy. Thus, the local communities are looking for economic alternatives for the development of the region. Cooperative fish farming is one of such alternatives. However, some projects are directly implemented on areas degraded by the former garimpo activity and the mercury left behind still poses risks, especially by its potential accumulation in fish. The objective of the present study was to evaluate the levels of mercury contamination in two fish farming areas, Paranaíta and Alta Floresta, with and without records of past gold-washing activity, respectively. Data such as mercury concentration in fish of different trophic level, size, and weight as well as the water physical and chemical parameters were measured and considered. These preliminary data have shown no significant difference between these two fish farming areas, relatively to mercury levels in fish.</description><subject>Amazonian region</subject><subject>Animal aquaculture</subject><subject>Animal productions</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>Brazil</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Environmental Monitoring</subject><subject>Fish farming</subject><subject>Fisheries</subject><subject>Fishes - metabolism</subject><subject>Fresh Water</subject><subject>Fresh water environment</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Geologic Sediments - chemistry</subject><subject>Gold</subject><subject>Gold mining areas</subject><subject>Mercury</subject><subject>Mercury - analysis</subject><subject>Mercury - metabolism</subject><subject>Mining</subject><subject>Pisciculture</subject><subject>Vertebrate aquaculture</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - metabolism</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU9vEzEQxVcIREPhK4AvcGqC7d31n2OooEVq4QCcrVnvbOpoYwfbW6m9873xKlF7jC8jzfzGb_ReVX1gdMUoE5-3q2RdDhn9_YpT2qwYX9FavagWTEm9ZJSLl9WiDNRSCy3PqjcpbWl5UrHX1RkTTPCa6UX17xajneIDscFn2DkP2QVPnCcDxB32ZHDpjiTM056U_hBKM5INRLfbB1J45zcEIkKad_Idkh8hlhI9uYUcyFUMKQXyK0PGC7LewWPwDjyJuCk6F-RLhEc3vq1eDTAmfHes59Wfb19_X14vb35efb9c3yxtQ2VeCt4rIXBowdaW894q3XasoVp0QFvdoGhR9dhj16m65rque7QDsK4fGg1S1OfVp8O_-xj-Tpiy2blkcRzBY5iS4UpJSVt5EmS62NooehpsZMsbOkvLA2hnRyIOZl88hPhgGDVzpmZrnjI1c6aGcVMyLZvvjxJTVxJ53juGWICPRwCShXGI4K1Lz5xkTEo9n7A-cFgsvncYZ0H0FnsX0WbTB3fymP84jcaE</recordid><startdate>20050915</startdate><enddate>20050915</enddate><creator>Farias, R.A.</creator><creator>Hacon, S.</creator><creator>Campos, R.C.</creator><creator>Argento, R.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7QH</scope><scope>7U6</scope><scope>7U7</scope><scope>7UA</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>H98</scope><scope>L.G</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20050915</creationdate><title>Mercury contamination in farmed fish setup on former garimpo mining areas in the Northern Mato Grosso State, Amazonian region, Brazil</title><author>Farias, R.A. ; Hacon, S. ; Campos, R.C. ; Argento, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-62d866ef5ac3c22dc895b14096ba0594e65e8dedebb8332933decfa1bdf49a763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Amazonian region</topic><topic>Animal aquaculture</topic><topic>Animal productions</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Applied ecology</topic><topic>Biological and medical sciences</topic><topic>Brazil</topic><topic>Ecotoxicology, biological effects of pollution</topic><topic>Environmental Monitoring</topic><topic>Fish farming</topic><topic>Fisheries</topic><topic>Fishes - metabolism</topic><topic>Fresh Water</topic><topic>Fresh water environment</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. 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| subjects | Amazonian region Animal aquaculture Animal productions Animal, plant and microbial ecology Animals Applied ecology Biological and medical sciences Brazil Ecotoxicology, biological effects of pollution Environmental Monitoring Fish farming Fisheries Fishes - metabolism Fresh Water Fresh water environment Freshwater Fundamental and applied biological sciences. Psychology Geologic Sediments - chemistry Gold Gold mining areas Mercury Mercury - analysis Mercury - metabolism Mining Pisciculture Vertebrate aquaculture Water Pollutants, Chemical - analysis Water Pollutants, Chemical - metabolism |
| title | Mercury contamination in farmed fish setup on former garimpo mining areas in the Northern Mato Grosso State, Amazonian region, Brazil |
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