Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 4 pps
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 and others, 1985; Majewski and others, ... Majewski and others, 1990 Grover and others, 1985 Glotfelty and others, 19 84 Ross and others, 1990 Majewski and others, 1991 Willis and others, 1983 Majewski and others, 1990 Cliath and others,...
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Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 1 doc
... 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 book. Naomi Nakagaki produced many of the ... used in the United States, in thousands of pounds of active ingredient (a.i.) for 1966, 1971, and 1988 and urban pesticides used in and around the home and garden in 1990 in thousands of...
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Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 2 pdf
... 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 sprayed. Investigated the ambient ... Kutz and others (1976), Rice and others (1986), Richards and others (1987), and Goolsby and others (19 94) require a different sampling strategy than local or field-scale studies. Reliable and...
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Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 5 pdf
... 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 Wu (1981) found the same spring-summer behavior ... alachlor and atrazine in Maryland rain in vicinity of Wye River (adapted from Glotfelty and others, 1990~). 1 34 PESTICIDES IN THE ATMOSPHERE REGINA 1981 MELFORT 1981 &apos ;-2 10 - 0...
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Pesticides in the AtmosphereDistribution, Trends, and Governing Factors - Chapter 7 doc
... 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 water. He concluded that the soil above the ... values. These TWAs, however, are based on an 8-hour workday and a 40 -hour workweek exposure in the production of pesticides and they do not take into account any chronic, low-level exposure to the...
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Pesticides in Stream Sediment and Aquatic Biota Distribution, Trends, And Governing Factors - Chapter 1 pps
... chlordane in the marine and estuarineenvironments 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 Kow) for the following compounds: polychlorinated dibenzo-p-dioxins, polychlorinated biphenyls, and mirex 5. 14 The ... organochlorine pesticides (including DDT) were banned in the UnitedStates during the 1970s. Yet, more than 20 years later, residues of DDT and other organochlorine pesticides continue to be detected in...
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Pesticides in Stream Sediment and Aquatic Biota Distribution, Trends, And Governing Factors - Chapter 7 ppsx
... insects (both indoors and outdoors), in subterranean termite control, in landscape maintenance, to control public-healthpests, 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 attributeseasonal profiles observed in the field to individual factors or combinations of factors. The occurrence ... in the offspring and not the exposed parent; the timing of exposure is critical in determining the effects; and effects of exposure in utero may not be observed until maturity.Animals in the...
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PESTICIDES IN SURFACE WATERS: Distribution, Trends, and Governing Factors - Chapter 4 pdf
... 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 Washington (see Section 3 .4) . ... alluvial aquifer back to the river during the autumn and winter months. They reported that the majority of atrazine detected in the river during base-flow periods in 1989 and 1990 was derived from...
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PESTICIDES IN SURFACE WATERS: Distribution, Trends, and Governing Factors - Chapter 5 pps
... 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. Crossland and others (1986) examined the ... agricultural-use pesticides. A study of the Susquehanna River in Pennsylvania examined the concentrations of 2 , 4- D and atrazine over a 12-month period (Fishel, 19 84) , as shown in Figure 3 .45 . In the...
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Pesticides in Stream Sediment and Aquatic Biota Distribution, Trends, And Governing Factors - Chapter 2 doc
... (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 continuingduring the 1990s. Although the NCBP has been discontinued, additional national-scale sampling ... bioaccumulate in livingorganisms (as discussed in Chapter 4) . Also, organochlorine compounds continue to be used in other countries, and have the potential for long-range atmospheric transport and forcontamination...
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