Mercury in Fish Tissue

Ecology began a monitoring program in 2005 to assess temporal trends in environmental mercury levels of freshwater fish across Washington State. Ten individual largemouth or smallmouth bass are analyzed from six waterbodies each year for total mercury. Trends are assessed by returning to each set of lakes every five years to determine if mercury levels are increasing or decreasing.

See the Project Plan and Addendum for more information.

Reports

  • 2014 Trends results from Banks Lake, Failor Lake, Kitsap Lake, Pierre Lake, the Snake River, and Lake Whatcom.
  • 2013 Trends results from Goodwin Lake, Horsethief Lake, Leland Lake, Loomis Lake, McIntosh Lake, and Lake Nahwatzel.
  • 2012 Trends results from Deer, Fazon, Lower Goose, Ozette, Samish, and St. Clair Lakes.
  • 2011 Trends results from Mason Lake, Lake Meridian, Moses Lake, Newman Lake, Offutt Lake, and Sammamish Lake.
  • 2010 Trends results from Liberty Lake, Loon Lake, Potholes Reservoir, Silver Lake, Lake Spokane, and Yakima River.
  • 2009 Results from Banks Lake, Failor Lake, Pierre Lake, Vancouver Lake, Lake Whatcom, and Snake River.
  • 2008 Results from Goodwin Lake, Horsethief Lake, Leland Lake, Loomis Lake, McIntosh Lake, and Lake Nahwatzel.
  • 2007 Results from Deer Lake, Lake Fazon, Lower Goose Lake, Lake Ozette, Lake Samish, and Lake St. Clair.
  • 2006 Results from American Lake, Mason Lake, Lake Meridian, Moses Lake, Newman Lake, Offutt Lake, and Lake Sammamish.
  • 2005 Results from Liberty Lake, Long Lake (Spokane), Loon Lake, Potholes Reservoir, Silver Lake, and Yakima River.

 

Click on map to retrieve Mercury in Fish Tissue data from the EIM database.