Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 7 doc

... watershed-estuary system of the Rhode River on Chesapeake Bay, Maryland, to be 1,016 and 97 mglha in 1 977 and 1 978 , respectively. The reasons for the 10-fold difference in calculated loadings ... alachlor, atrazine, and 2,4-D. Cyanazine, 2,4-D, and 2,4,5-T exceeded, and atrazine has been detected in several samples near the long-term exposure limit for childre...

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... reviews and analyses of our current knowledge and understanding of pesticides in the water resources of the United States and of the principal factors that influence contamination and transport. The ... used in the United States, in thousands of pounds of active ingredient (a.i.) for 1966, 1 971 , and 1988 and urban pesticides used in and around the...

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... cis- Chlordane, trans- DDT, p,p&apos ;- Chlordane DDT Toxaphene Sampling Date NR Feb 1 97 5- May 1 975 Dec 1 97 6- May 1 977 Sept 1 97 3- May 1 975 Dec 1 97 6- April 1 979 July 1 97 7- ... Sampling Date 196 6-6 8 1 97 0 -7 5 July-Nov 1 974 Aug 1 974 Aug 1 975 Location(s) Sites in Saskatchewan, Canada: a Aberdeen (1 970 ) b Re...

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... others, 1 972 ; Yates and Akesson, 1 973 ; Nordby and Skuterud, 1 975 ; Farwell and others, 1 976 ; White and others, 1 977 ; Grover and others, 1 978 , 1985, 1988b; Cliath and others, 1980; Willis and ... and others, 1989 Seiber and others, 1 979 Seiber and others, 1 979 Willis and others, 1983 Willis and others, 1983 Grover and others, 1988b Majewski an...

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... concentrations of atrazine, cyanazine, and alachlor in rain peaked during the spring herbicide application season in Minnesota. Glotfelty and others (1990c), and Wu (1981) found the same spring-summer behavior ... Turner and others (1 977 ) reported that photodieldrin formation and volatilization peaked between noon and 2:00 p.m. during a July field experiment in Mar...

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... (2,4-D, 2,4,5-T, and silvex) and other herbicides (such as dacthal and trifluralin) constituted 10 and 14 percent, respectively, of total study effort during the 1 970 s. During the 1980s, the ... (besides the NMPFF) has continued into the 1990s. Many state monitoring programs are also continuing during the 1990s. Although the NCBP has been discontinued, additional natio...

Ngày tải lên: 11/08/2014, 06:23

... lindane (Hamelink and others, 1 977 ), 10 percent for endrin (Grant, 1 976 ), about 50 percent for dieldrin (Reinert and others, 1 974 a); 27 62 percent for DDT (Jarvinen and others, 1 977 ); and 50 70 ... (Crockett and others, 1 974 ), in 1985 in California (Mischke and others, 1985), and during 1988–1989 in Washington (Rinella and others, 1993). In the California s...

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... 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, ... Given the number of factors involved and the interaction between them, it may be difficult to attribute seasonal profiles observed in the field to individual factors or...

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... 1 97 5-9 1. Atrazine in the Mississippi, Missouri, and Ohio Rivers, 1 97 5-9 1 - - - - - - . I I I 4 95 Ciba-Geigy, 1992e Ciba-Geigy, 1994a I Atrazine in surface waters of Iowa, 1 97 5-9 3. ... dieldrin in 1 971 , and detection frequency of dieldrin in rivers and streams of the western United States from 19 67 to 1 971 1 87...

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... chlordane in the marine and estuarine environments of the United States; by Mearns and others (1988), which reviews PCB and organochlorine insecticide contamination of fish and shellfish in the marine and ... organochlorine pesticides (including DDT) were banned in the United States during the 1 970 s. Yet, more than 20 years later, residues of DDT and other organo...

Ngày tải lên: 11/08/2014, 06:23