Springer Online Journal Archives 1860-2000
Energy, Environment Protection, Nuclear Power Engineering
Summary Endosulfan residues declined rapidly — within three to five days — in the water of THIODAN treated test rice fields near Pandaan (East Java). Terminal residues in the water amounted to 0.0005–0.0008 ppm. These residues were due to the constant large scale application in this area. It was noted, that fish are able to tolerate short time exposure of endosulfan concentrations 4 times the LC100. In the mud of submerged as well as dried rice fields, only very low residues (1.9 ppm maximum) were found. The increasing sulfate equivalent in the total residue points to decomposition of the chemical. The biocoenosis, which was impaired at the beginning of the test, reappeared after completion of the test.
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