Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 4 pps

... Glotfelty and others, 19 84 Glotfelty and others, 19 84 Glotfelty and others, 19 84 Glotfelty and others, 19 84 Glotfelty and others, 19 84 Majewski and others, 1990 Seiber and others, 1986 ... usually in the early mornings and evenings, and with rain and irrigation (Cliath and others, 1980; Hollingsworth, 1980; Glotfelty and others, 19 84; Grover an...

Ngày tải lên: 12/08/2014, 05:21

... 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 ... support in conducting literature searches, obtaining many of the references, and assisting in many other ways during the research and writing phase of this...

Ngày tải lên: 12/08/2014, 05:21

... Ross and Sava, 1986; Oudiz and Klein, 1988; Seiber and others, 1989; Ross and others, 1990; Fleck and others, 1991), and precipitation (Wu, 1981; Shulters and others, 1987; Glotfelty and others, ... atrazine and 2 , 4- D. These samples were taken nearly 1 mi from the treated plot and concluded that the amounts found in rain were comparable to the amount s...

Ngày tải lên: 12/08/2014, 05:21

... Goolsby and others (19 94) found that triazine and acetanilide herbicide concentrations and detection frequency in rain were highest in the intense corn-growing areas of Iowa, Illinois, and Indiana ... concentrations of atrazine, cyanazine, and alachlor in rain peaked during the spring herbicide application season in Minnesota. Glotfelty and others (1990c), and W...

Ngày tải lên: 12/08/2014, 05:21

... 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 children. In general, the very high ... ground- water systems (the ancient earthblock and the scarplands) and found that only one percent of the a- and y-HCH percolated into the shallow ground wat...

Ngày tải lên: 12/08/2014, 05:21

... 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 ... BMF) and the logarithm of the n-octanol-water partition coefficient (log K ow ) for the following compounds: polychlorinated dibenzo-p-dioxins, polychlorinated...

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, ... 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...

Ngày tải lên: 11/08/2014, 06:23

... inputs during base flow in 1989 and 1990, respectively, with the remainder coming from ground water (Squillace and others, 1996). They further state that the atrazine entering the river during ... pesticides in bed sediments. Rinella and others (1993) present an excellent case study of a common in- place pesticide-DDT and its metabolites -in the Yakima River in W...

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... regulatory, and industrial-would agree that models provide a valuable tool in understanding and predicting the behavior and fate of pesticides in the environment in general, and in surface waters in ... modeled in lakes and reservoirs. Schnoor and others (1982) modeled the time-dependent fate and transport of atrazine into, within, and out of a reservoir...

Ngày tải lên: 12/08/2014, 05:21

... (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 1970s. 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 n...

Ngày tải lên: 11/08/2014, 06:23