Description

Soda ash is a pulverized mineral, commonly referred to as trona, and harvested from underground deposits in southwestern Wyoming. Four companies own 5 mining operations in the vicinity of Green River, Wyoming, and produce 90 percent of the soda ash in the United States, which accounts for more than 30 percent of the world supply. Trona refining produces tailings water that is either discharged into open evaporation ponds or recycled back into the mining operation and used to facilitate trona ore extraction. As water evaporates from the ponds, chemical residues become concentrated. At cooler temperatures generally 40F sodium decahydrate precipitates out of the water and crystallizes on solid objects in the ponds or on the water surface. Migratory birds landing on the evaporation ponds and being exposed to the water are affected by the sodium decahydrate and other chemical precipitates. Water samples collected from multiple evaporation ponds had similar physical and chemical composition with the exception of phytoplankton species present. Representative total dissolved solids TDS ranged from approximately 40,000 ppm parts per million to greater than 300,000 ppm depending on the pond and time of year. Eared grebe mean serum sodium, chloride, bicarbonate, aspartate aminotransferase, creatine kinase, and uric acid were elevated immediately after capture compared to serum biochemical parameters from eared grebes collected from a reference site in British Columbia, Canada. Histopathologic evidence consistent with drowning was observed in all grebes, but it is not known whether this was a direct mortality factor or a late terminal event.

General Information

• This data is described at

  http://catalog.data.gov/dataset/investigation-of-migratory-bird-mortality-associated-with-exposure-to-soda-ash-mine-tailin Do you think this data is incorrect? Let us know

• This data is published by

  US Fish and Wildlife Service, Department of the Interior Do you think this data is incorrect? Let us know

Legal Information

• The rights statement is at

  http://catalog.data.gov/dataset/investigation-of-migratory-bird-mortality-associated-with-exposure-to-soda-ash-mine-tailin Do you think this data is incorrect? Let us know

• Outside the US, this data is available under

  Creative Commons CCZero Do you think this data is incorrect? Let us know

• There are

  yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

• The content is available under

  Creative Commons CCZero Do you think this data is incorrect? Let us know

• The rights statement includes data about

  its data licence Do you think this data is incorrect? Let us know

• This data contains

  no data about individuals Do you think this data is incorrect? Let us know

Practical Information

• The data appears in this collection

  http://catalog.data.gov/organization/fws-gov Do you think this data is incorrect? Let us know

• The accuracy or relevance of this data will

  go out of date but it is timestamped Do you think this data is incorrect? Let us know

• The data is

  backed up offsite Do you think this data is incorrect? Let us know

Technical Information

• This data is published at

  http://ecos.fws.gov/ServCatFiles/reference/holding/21742?accessType=DOWNLOAD Do you think this data is incorrect? Let us know

• The format of this data is

  a standard open format Do you think this data is incorrect? Let us know

Social Information

• The documentation includes machine-readable data for

  title Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  description Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  identifier Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  landing page Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  publisher Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  keyword(s) or tag(s) Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  distribution(s) Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  release date Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  modification date Do you think this data is incorrect? Let us know

• The documentation includes machine-readable data for

  temporal coverage Do you think this data is incorrect? Let us know

• The documentation about each distribution includes machine-readable data for

  release date Do you think this data is incorrect? Let us know

• The documentation about each distribution includes machine-readable data for

  a URL to access the data Do you think this data is incorrect? Let us know

• The documentation about each distribution includes machine-readable data for

  a URL to download the dataset Do you think this data is incorrect? Let us know

• The documentation about each distribution includes machine-readable data for

  type of download media Do you think this data is incorrect? Let us know

• Find out how to contact someone about this data at

  http://catalog.data.gov/dataset/investigation-of-migratory-bird-mortality-associated-with-exposure-to-soda-ash-mine-tailin Do you think this data is incorrect? Let us know

• Find out how to suggest improvements to publication at

  http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/investigation-of-migratory-bird-mortality-associated-with-exposure-to-soda-ash-mine-tailin Do you think this data is incorrect? Let us know