@Article{FostierFoGuMeBoEsKr:2000:MeFlNa,
               author = "Fostier, A. H. and Forti, Maria Cristina and Guimar{\~a}es, J. R. 
                         D. and Melfi, A. J. and Boulet, R. and Espirito Santo, C. M. and 
                         Krug, F. J.",
                title = "Mercury fluxes in a natural forested Amazonian catchment (Serra do 
                         Navio, Amapa State, Brazil)",
              journal = "Science of the Total Environment",
                 year = "2000",
               volume = "260",
               number = "1-3",
                pages = "201--211",
                month = "out.",
             keywords = "CI{\^E}NCIAS METEOROL{\'O}GICAS, mercury fluxes, rainwater, 
                         throughfall, stream water, deforestation, atmospheric mercury, 
                         deposition, pollution, gold, methylmercury, geochemistry, 
                         exchange.",
             abstract = "Mercury (I-Ig total)fluxes were calculated for rainwater, 
                         throughfall and stream water in a small catchment located in the 
                         northeastern region of the Brazilian Amazon (Serra do Navio, Amapa 
                         State), whose upper part is covered by a natural rainforest and 
                         lower part was altered due to deforestation and activities related 
                         to manganese mining. The catchment area is 200 km from the nearest 
                         gold mining (garimpo). Minimum and maximum Hg concentrations were 
                         measured monthly from October 1996 to September 1997 and were 
                         3.5-23.4 ng l(-1)for rainwater, 16.5-82.7 ng l(-1)for throughfall 
                         March-August 1997)and 1.2-6.1 and 4.2-18.8 ng l(-1)for stream 
                         water, in natural and disturbed areas, respectively. In the 
                         natural area, the inputs were 18.2 mu g m(-2)year(-1)in rainwater 
                         and 72 mu g m(-2)year(-1)in throughfall. This enrichment was 
                         attributed to dry deposition. The stream output of 2.9 mu g 
                         m(-2)year(-1)indicates that Hg is being recycled within the forest 
                         as other chemical species or is being retained by the soil system, 
                         as confirmed by the cumulative Hg burden in the 0-10 cm surface 
                         layer, which was 36 480 mu g m When the disturbed area of the 
                         catchment was included, the stream output was 9.3 mu g m(-2), 
                         clearly indicating the impact of the deforestation of the lower 
                         part of the basin on the release of mercury. The Hg burden in the 
                         disturbed area was 7560 mu g m(-2)for the 0-10 cm surface layer.",
                 issn = "0048-9697",
                label = "10194",
           targetfile = "2000_fostier.pdf",
        urlaccessdate = "30 abr. 2024"
}