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| 02766cam 2200397zi 4500 |
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| 001 | 9.874138 |
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| 003 | CaOODSP |
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| 005 | 20221107164118 |
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| 006 | m o d f |
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| 007 | cr bn||||||||| |
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| 008 | 190603s1995 onca ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-on |
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| 086 | 1 |aEn13-5/95-196E-PDF |
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| 100 | 1 |aCrowe, Allan, |d1952- |eauthor. |
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| 245 | 12|aA model for managing the impact of pesticide on groundwater at multiple geographical scales : |bwatershed to soil profile / |cby A.S. Crowe & W.G. Booty. |
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| 264 | 1|a[Ottawa] : |bEnvironment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, |c[1995] |
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| 300 | |a1 online resource (7 unnumbered pages) : |billustrations. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |a[NWRI contribution] ; |v95-196 |
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| 500 | |aCover title. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"The multi-level pesticide assessment methodology developed here permits regulatory personnel to undertake a variety of assessments on the potential for groundwater contamination from pesticides in agricultural areas at an increasingly detailed geographical scale of investigation. This approach accounts for a variety of assessment objectives, geographical scales, restrictions on the availability and accuracy of data, time available to undertake the assessment, and the expertise of the decision maker. The Level 1: regional scale ranks the relative potential for groundwater contamination among several districts. The Level 2: local scale assesses the potential for groundwater contamination of soils within a district at a soil polygon scale. A Level 3: soil profile scale allows the user to simulate the migration of a pesticide within a specific soil profile, and to determine the extent and timing of leaching of the pesticide. The system developed here integrates, GIS, data bases, data management systems, knowledge-based systems, and pesticide assessment models"--Abstract. |
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| 692 | 07|2gccst|aPesticides |
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| 692 | 07|2gccst|aGroundwater |
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| 692 | 07|2gccst|aWater pollution |
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| 700 | 1 |aBooty, William G., |eauthor. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 1 |aCanada. |bWater Science and Technology Directorate. |
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| 710 | 2 |aNational Water Research Institute (Canada) |
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| 830 | #0|aNWRI contribution ;|v95-196.|w(CaOODSP)9.844121 |
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| 856 | 40|qPDF|s1.44 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-95-196-eng.pdf |
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