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In-Water Regulatory Drivers

Explore the regulatory drivers for PCB levels in the Spokane River with data from the 2008 Toxics List, including standards in ppq and ug/kg. Learn about human health and fish tissue criteria set by Washington State and the Spokane Tribe. Discover PCB levels in freshwater fish from 2001 to 2008.

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In-Water Regulatory Drivers

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  1. In-Water Regulatory Drivers Spokane River

  2. Summary of Category 5 Section (303d)Toxics Listings for the Spokane River, 2008 List

  3. Summary of PCB Standards pg/l= parts per quadrillion ug/kg= parts per billion

  4. Water Quality Criteria for PCBs Washington State • Human Health (EPA National Toxics Rule) • 170 ppq (parts per quadrillion) in water • 6.5 grams per day consumption rate • Translates to 5.3 ppb (parts per billion) for fish tissue Spokane Tribe • Human Health • 3.37 ppq in water • 86.3 grams per day consumption rate • Translates to 0.1 ppb for fish tissue

  5. PCB Levels in Freshwater Fish from Washington 2001 to 2008

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