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Titolo:
Organochlorine pesticides in water, sediment and fish from the Nile River and Manzala Lake in Egypt
Autore:
Yamashita, N; Urushigawa, Y; Masunaga, S; Walash, MI; Miyazaki, A;
Indirizzi:
Natl Inst Resources & Environm, Hydrospher Environm Protect Dept, Tsukuba,Ibaraki 305, Japan Natl Inst Resources & Environm Tsukuba Ibaraki Japan 305 araki 305, Japan Yokohama Natl Univ, Inst Environm Sci & Technol, Yokohama, Kanagawa 240, Japan Yokohama Natl Univ Yokohama Kanagawa Japan 240 ohama, Kanagawa 240, Japan Univ Mansoura, Fac Pharm, Dept Analyt Chem, El Mansoura 35516, Egypt Univ Mansoura El Mansoura Egypt 35516 lyt Chem, El Mansoura 35516, Egypt
Titolo Testata:
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
fascicolo: 4, volume: 77, anno: 2000,
pagine: 289 - 303
SICI:
0306-7319(2000)77:4<289:OPIWSA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
INSECTICIDES; RESIDUES; PCBS;
Keywords:
organochlorine pesticides; DDT; HCH; HCB; Egypt; Nile River;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Yamashita, N Natl Inst Resources & Environm, Hydrospher Environm Protect Dept, 16-3 Onogawa, Tsukuba, Ibaraki 305, Japan Natl Inst Resources & Environm 16-3 Onogawa Tsukuba Ibaraki Japan 305
Citazione:
N. Yamashita et al., "Organochlorine pesticides in water, sediment and fish from the Nile River and Manzala Lake in Egypt", INT J ENV A, 77(4), 2000, pp. 289-303

Abstract

To assess the risks of organochlorine pesticides discharged into the hydrospheric environment of Egypt, river and lake water, drinking water, suspended solids, sediments and fish were collected during 1993-1994 from the NileRiver and Manzala Lake in Egypt and were transported to Japan for chemicalanalysis. Among different organochlorine pesticides analyzed, p,p'-DDE wasthe most predominant in fish (7.6 to 67 ng/g wet wt.), sediments (3.2 to 432 ng/g dry wt.) and suspended solids (5.3 to 138 pg/L). However, in the dissolved phase of water samples HCH compounds predominated (alpha-HCH, 71 to2,815 pg/L). Concentrations of organochlorine pesticides, except chlordane, were higher in Manzala Lake than in the River Nile. Concentrations of organochlorine pesticides in fish corresponded with those in sediments from each location. Comparison of organochlorine concentrations in Nile River water with those reported in earlier studies suggested a decrease in concentrations during the last decade. However, concentrations of p,p'-DDE has increased in fish. It appears that the release of this metabolite from contaminated sediment is the major source of p,p'-DDE in fish during recent years.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 13:13:43