This database is built to show the mercury distribution in various environments and related products in Japan. The information of sampling media, mercury type, sampling region, and sampling time are contained. In this database, you can search and browse by categories, and also enjoy on-demand mercury maps in Japan.

Sampling Media
Mercury Type
Sampling Region
Sampling Time

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Search Results

Sample Media Mercury Type Principal agent Reference Number Institute Reference Year Sampling Region Sampling Area Sample Type Unit Minmum Maximum Average
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H4 - Others Others Fish 83 species ppm < 0.01 1.69 0.19
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H4 - Others Others Fish 32 species ppm 0.02 1.69 0.42
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H4 - Others Others Shellfish 16 species ppm < 0.01 0.27 0.01
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H4 - Others Others Freshwater fish 19 species ppm < 0.01 0.4 0.04
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H4 - Others Others Freshwater fish 1 species ppm 0.4 0.4 0.4
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H5 - Others Others Fish 85 species ppm < 0.01 2.18 0.16
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H5 - Others Others Fish 37 species ppm < 0.01 1.23 0.24
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H5 - Others Others Shellfish 17 species ppm < 0.01 0.04 0.01
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H5 - Others Others Freshwater fish 9 species ppm < 0.01 0.37 0.06
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H5 - Others Others Freshwater fish 2 species ppm < 0.01 0.37 0.19
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Fish 98 species ppm < 0.01 1.98 0.13
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Fish 35 species ppm 0.02 0.96 0.15
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Shellfish 17 species ppm < 0.01 0.05 0.01
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Shellfish 1 species ppm < 0.01 < 0.01 < 0.01
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Freshwater fish 13 species ppm < 0.01 0.11 0.04
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H6 - Others Others Freshwater fish 2 species ppm 0.1 0.11 0.1
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H7 - Others Others Fish 94 species ppm < 0.01 1.42 0.14
Aquatic water and products Me-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H7 - Others Others Fish 27 species ppm 0.02 1.19 0.16
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H7 - Others Others Shellfish 16 species ppm < 0.01 0.06 0.01
Aquatic water and products T-Hg Local government R36 Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government Food Safety Archives by Bureau of Social Welfare and Public Health No.H7 - Others Others Freshwater fish 9 species ppm < 0.01 0.1 0.04