Abstract
The extent of contamination by endosulfans in soil samples collected from the Point Mugu watershed near Oxnard, California was determined using capillary gas chromatography/mass selective detection (GC/MSD). The study was designed to detect three organochlorinated pesticides: endosulfan α, endosulfan β and endosulfan sulfate. Thirteen sets of two soil samples each were taken from various sites in the region. Our results show that the endosulfan levels in these soils range from trace amounts to nearly 30 ppm, with endosulfan α being the most abundant and endosulfan sulfate the least. Two sites of the study, Hueneme and Revolon and Farm and Revolon, showed high amounts of endosulfans α and β, with concentrations between 20 and 30 ppm. The majority of the other sites studied in this research produced concentrations of less than 10 ppm for each of the three endosulfans monitored. At five areas in particular, Pleasant Valley and Creek, Laguna and Creek, Etting and Creek, Road and Creek and Hueneme and Creek, less than 2 ppm or only trace amounts of endosulfans α, β and sulfate were detected.
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Arnold, S. F., Klotz, D. M., Collins, B. M., Vonier, P. M., Guillette Jr., L. J. and McLachlan, J. A.: 1996, ‘Synergistic Activation of Estrogen Receptor with Combinations of Environmental Chemicals’, Science 272, 1489–1492.
Carey, A. E., Gowen, J. A., Tai, H., Mitchell, W. G. and Wiersma, G. B.: 1979, ‘Pesticide Residue Levels in Soils and Crops from 37 States, 1972-National Soils Monitoring Program (IV)’, Pesticide Monitoring Journal 12(4), 209–229.
Fillion, J. and Thorp, J.: 1995, ‘Multi-Pesticide Residue Analysis Utilizing SIM GC/MSD’, Hewlett-Packard Application Note, 228–348.
Guillette, L. J., Jr., Gross, T. S., Masson, G. R., Matter, J. M., Percival, H. F. and Woodward, A. R.: 1994, ‘Developmental Abnormalities of the Gonad and Abnormal Sex Hormone Concentrations in Juvenile Alligators from Contaminated and Control Lakes in Florida’, Environ. Health Perspect. 102(8), 680–688.
NY Times: 24 Oct. 1993, ‘E.P.A. to Study an Insecticide for Links to Cancer’, 20–21.
Raloff, J.: 1996, ‘Pesticides May Change Human Immunity’, Science News 149, 356.
U.S.G.S.: 1950, ‘Camarillo, C.A., NE/4 Hueneme is ‘Quadrangle’, (topographical map series).
Willis, G.H., McDowell, L. L., Southwick, L.M. and Smith, S.: 1987, ‘Methoxychlor and Endosulfan Concentrations in Unit-Source Runoff and in Channel Flow of a Complex Watershed’, Trans. ASAE 30(2), 394–9.
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Leung, A.M., McDonough, D.M. & West, C.D. Determination of Endosulfans in Soil/Sediment Samples from Point Mugu, Oxnard, California Using Capillary Gas Chromatography/Mass Selective Detection (GC/MSD). Environ Monit Assess 50, 85–94 (1998). https://doi.org/10.1023/A:1005737814714
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DOI: https://doi.org/10.1023/A:1005737814714