SPPH 381c Oct 15 Harmful Environmental Exposures II.docx

SPPH 381c Oct 15 Harmful Environmental Exposures II.docx -...

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Oct 15, 2018 Harmful Environmental Exposures II Hugh Davies 2 main sources of water 1. Groundwater (under the ground) 2. Surface water (lakes, streams that are above ground + atmosphere is interacting directly with them) Groundwater under the direct influence of surface water (GWUDI) close interaction between the two Ground water Surface water Low turbidity Absent of or less predators & disease vectors Less exposure to contaminants High mineral content High turbidity More predators & disease vectors Greater exposure to contaminants Low mineral content BC depends greatly on surface water (84%) of population supplied by public system important because of the hazards it may contain + threat to human health local government more aware, accountable than non-local government KEY POINT: your water supply doesn’t just depend on proximal things, but also administrative things such as who governs the area, where is the money coming from (indirect aspects) What’s in drinking water?
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  • Fall '18
  • Matilda
  • surface water

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