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NATIONAL SURVEY OF MERCURY CONCENTRATIONS IN FISH
Description:
Resource Purpose:Regulatory and scientific focus on mercury in the aquatic ecosystem has been largely motivated by the health risks of consuming contaminated fish, primarily because human exposure to methylmercury is almost wholly due to fish. Understanding of the methylmercury problem is still relatively limited. The ability to determine the nature and extent of mercury concentration in fish on a regional and national basis, to identify possible sources of contamination, and to link mercury concentrations to sources, depends on the availability of data suitable for such analysis. This database, containing information collected by the states, can be used to derive estimates of tissue concentration and calculate descriptive statistics on mercury concentrations in fish tissue.
Legislation/Enabling Authority:Clean Water act Section 104
Supported Program:Water Quality Criteria and Standards, Fish Contamination Program
Data Type:
Monitoring
Geographical Data Stored By:
Latitude - Longitude
Data Represented By:
Points
Measurement Methods:
Secondary data compilation, primarily map interpolation but some other methods
System Access Privileges:
Access Methods:
FTP
Other
Other Methods:
Response to individual request by email
Resources Accessible By:
Public
States
Regions
DataSubs
All EPA
EPA Branch
EPA Division
EPA Authorized
Resources Updatable By:
EPA Branch
CBI Security:
No
Data Collection:The data will be updated at some point in the future that is yet to be determined. The timeframe is one year.
Range of Data Start:
19900101
Range of Data End:
19951231