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| 03353nam 2200397zi 4500 |
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| 001 | 9.911524 |
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| 003 | CaOODSP |
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| 005 | 20220725133624 |
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| 006 | m o d f |
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| 007 | cr mn||||||||| |
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| 008 | 220517s1989 bccab ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-bc |
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| 086 | 1 |aEn37-534/1989E-PDF |
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| 245 | 00|aPreliminary evaluation of selected pesticides in the Nicomekl River Watershed, lower Fraser Valley, B.C., and proposed approaches for assessing toxicity to aquatic biota / |cprepared for Environment Canada, Inland Waters Directorate, Water Quality Branch, Pacific & Yukon Region ; prepared by COASTLINE Environmental Services Ltd. |
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| 264 | 1|aVancouver, B.C. : |bCOASTLINE Environmental Services Ltd., |c1989. |
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| 300 | |a1 online resource (1 volume (various pagings)) : |billustrations, maps |
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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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| 500 | |a"June 1989." |
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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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| 505 | 2 |aAnalysis of dinoseb and endosulfan in samples of sediment and water collected from the Nicomekl River and farmland ditches on March 16, 1989 / prepared for Coastline Environmental Services Ltd. ; prepared by C.S. Alleyne. |
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| 520 | |a"A multi-year project to assess the potential toxic effects of agricultural crop pesticides on aquatic biota within the Lower Fraser Valley, B.C., was commenced in late 1988. This report describes the Phase I tasks undertaken and completed to initiate the project. The overall objective of Phase I was to develop a site-specific approach for predicting and monitoring the potential toxic effects on aquatic biota of pesticides entering a receiving-water body by surface water runoff from commercial farms. Initially, those herbicides and insecticides registered in Canada and marketed to farmers in the Lower Fraser Valley were examined with respect to their perceived regional use and hazard to the freshwater environment. Based on this appraisal, dinoseb (herbicide) and endosulfan (insecticide) were selected for investigation of their presence and potential toxicity to aquatic life frequenting the study area"--Summary, page ii (first section). |
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| 650 | 0|aFishes|xEffect of pesticides on|zBritish Columbia|zNicomekl River Watershed. |
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| 650 | 0|aFreshwater invertebrates|xEffect of pesticides on|zBritish Columbia|zNicomekl River Watershed. |
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| 650 | 0|aHerbicides|xToxicology|zBritish Columbia|zNicomekl River Watershed. |
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| 650 | 0|aInsecticides|xToxicology|zBritish Columbia|zNicomekl River Watershed. |
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| 650 | 6|aPoissons|xEffets des pesticides sur|zColombie-Britannique|zNicomekl, Bassin de la. |
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| 650 | 6|aInvertébrés d'eau douce|xEffets des pesticides sur|zColombie-Britannique|zNicomekl, Bassin de la. |
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| 650 | 6|aHerbicides|xToxicologie|zColombie-Britannique|zNicomekl, Bassin de la. |
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| 650 | 6|aInsecticides|xToxicologie|zColombie-Britannique|zNicomekl, Bassin de la. |
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| 710 | 1 |aCanada. |bInland Waters Directorate. |bPacific and Yukon Region. |bWater Quality Branch, |eissuing body. |
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| 856 | 40|qPDF|s4.50 MB|uhttps://publications.gc.ca/collections/collection_2022/eccc/En37-534-1989-eng.pdf |
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