Pesticides in Stream Sediment and Aquatic Biota Distribution, Trends, And Governing Factors - Chapter 5 docx

... articles and books on pesticides in bed sediment and aquatic biota in the United States or on processes governing sorption and bioaccumulation 2.1 Pesticides in bed sediment and aquatic biota ... Survey, Minneapolis, Minnesota Peter D. Dileanis, U.S. Geological Survey, Sacramento, California Distribution, Trends, And Governing Factors Pesticides i...

Ngày tải lên: 11/08/2014, 06:23

... certain pesticides were expected to be found in various environmental media, including sediment and biota. In contrast, monitoring studies targeted compounds known to be found in sediment and biota. The ... analytes, sampling sites, and samples were not taken into account in Figure 2 .5; nonetheless, this figure gives a general indication of monitoring efforts in bed...

Ngày tải lên: 11/08/2014, 06:23

... nr Chlordane, α - 25 184 46 56 36 0 25 672 46 56 53 0 Chlordane, γ - 25 2 25 46 48 28 0 52 2 75 46 35 19 0 Chlordane, total 58 818 894 35 12 41 41 77 55 1 2,736 2,328 36 5 20 43 75 Chlordene nr ... 768 904 1 45 7 12 5 6 55 7 2 ,51 6 1 ,56 9 146 1 5 4 5 Heptachlor, total nr nr nr nr nr nr nr nr Hexachlor 8090 Hexachlorobenzene 65 8 45 46 57 46 0 59 2...

Ngày tải lên: 11/08/2014, 06:23

... 5. 4), organochlorine insecticides may persist in bed sediment and aquatic biota of forest streams, and forest soils containing organochlorine insecticide residues may be washed into the stream for many ... Topics—Sources, Behavior, And Transport The preceding overviews of national distribution and trends of pesticides in bed sediment and aquatic biota, and o...

Ngày tải lên: 11/08/2014, 06:23

... nd–366 50 20 Mirex nr, 0.01–100 nd–1,834 85 13 nr, 0.01 50 nd–310 64 9 Nonachlor, cis - nr, 0 .5 100 nd 5. 5 22 9 nr, 0 .5 100 nd 5. 5 22 9 Nonachlor, trans - nr, 0 .5 100 nd–16 21 10 nr, 0 .5 100 ... 16 33 51 DDT, p , p ′ - 49 4 47 44 2 53 DDT, total 55 23 23 52 12 36 Diazinon i 17 83 i 6 94 Dieldrin 33 32 35 29 25 46 Endosulfan 1 i1090 i 9 91 Endo...

Ngày tải lên: 11/08/2014, 06:23

... insects (both indoors and outdoors), in subterranean termite control, in landscape maintenance, to control public-health pests, in industrial settings, in forestry, along roadways and rights-of-way, ... some pesticides in bed sediment and aquatic biota, at least in some areas. Pesticides used in forestry and in urban areas, like those used in agriculture, ha...

Ngày tải lên: 11/08/2014, 06:23

... Dumping Act; 24 Federal Insecticide, Fungicide, and Rodenticide Act; 27 Resource Conservation and Recovery Act; 28 and Safe Drinking Water Act. 29 • • • • • CRC_ 755 9_CH0 05. indd 137CRC_ 755 9_CH0 05. indd ... regulations except where compliance would be inconsistent with statutory requirements … (§ 150 7.3[b]). (Continued) CRC_ 755 9_CH0 05. indd 135CRC_ 755 9_CH0 05. indd 1 35 1/...

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Ngày tải lên: 02/07/2014, 04:20

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Ngày tải lên: 02/07/2014, 06:20

... prey populations in a 84 THE SCIENCE OF ECOLOGY eagles and falcons to the advent of DDT and other pesticides. DDT was invented in the late 1930s and came into widespread use during and immediately ... Silent Spring in 1962, she was able to find many examples of pest insects having developed resistance to DDT and other pesticides because these fast-reproducing species had man...

Ngày tải lên: 06/07/2014, 14:20