00000nam 2200000za 4500 9.867138 CaOODSP 20241203113645 cr ||||||||||| 190116s2003 onc #ot f|0| 0 eng d CaOODSP eng eng fre n-cn-on En13-5/03-157E-PDF Crowe, Allan, 1952- Assessment of DDT and Dieldrin in groundwater at Point Pelee National Park [electronic resource] / Allan S. Crowe and R. Mills. Burlington, Ont. : Environment Canada, 2003. 44 p. NWRI contribution ; no. 03-157 Digitized edition from print [produced by Environment and Climate Change Canada]. "January 2003." Includes bibliographic references. "Until the 1970's, large areas of Point Pelee National Park (PPNP) were cleared for agricultural use, including orchards and vegetable fields. The pesticides DDT and Dieldrin were widely used in these agricultural areas. Although DDT and Dieldrin have not been used since 1970, high levels of DDT and Dieldrin still persist in the shallow soils within the former orchard. It is suspected that these pesticides may leach to the water table. Thus contaminated groundwater may represent a pathway to exposure to humans through the Park's water supply wells, and to the aquatic ecosystem via groundwater discharge to the marsh"--Abstract. Abstracts in French and English. gccst Groundwater gccst Water pollution gccst Pesticides gccst National parks Mills, R. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 03-157. (CaOODSP)9.844121 PDF 2.21 MB https://publications.gc.ca/collections/collection_2019/eccc/En13-5-03-157-eng.pdf