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Environmental standard (water pollution) about protection of a person's health

Last update date March 12, 2019

There is and, in this page, speaks environmental standard of water pollution separate table 1 (environmental standard about protection of a person's health) of the Environmental Agency notification that we set based on Environmental Basic Law.

Environmental standard about protection of health of one separate table

Environmental standard
ItemThe standard valueMethod for measurement
Cadmium0.003 mg/l or lessJapanese Industrial Standards K0102 (we say "standard" as follows.) Method (preparations operation can depend on method to advocate in others by method to fix for standard 55, appended chart 8.) to fix for 55.2, 55.3 or 55.4
All cyanDo not be detected.Method to fix for standard 38.1.2 and 38.2 or method to fix for standard 38.1.2 and 38.3
Lead0.01 mg/l or lessMethod to fix for standard 54
Hexavalent chromium0.05 mg/l or lessMethod to fix for standard 65.2
Arsenic0.01 mg/l or lessMethod to fix for standard 61.2 or 61.3
Total mercury0.0005 mg/l or lessMethod to advocate in appended chart 1
Alkyl mercuryDo not be detected.Method to advocate in appended chart 2
PCBDo not be detected.Method to advocate in appended chart 3
Dichloromethane0.02 mg/l or lessMethod to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Carbon tetrachloride0.002 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,2-dichloroethane0.004 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1 of Japanese Industrial Standards k0125 or 5.3.2
1,1-dichloroethylene0.1 mg/l or lessMethod to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Cis-1,2-dichloroethylene0.04 mg/l or lessMethod to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
1,1,1-trichloroethane1 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,1,2-trichloroethane0.006 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
Trichloroethylene0.01 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
Tetrachloroethylene0.01 mg/l or lessMethod to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,3-dichloropropene0.002 mg/l or lessMethod to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.1
chiuramu0.006 mg/l or lessMethod to advocate in appended chart 4
Simazine0.003 mg/l or lessMethod to advocate to the first or the second of appended chart 5
chiobenkarubu0.02 mg/l or lessMethod to advocate to the first or the second of appended chart 5
Benzene0.01 mg/l or lessMethod to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Selenium0.01 mg/l or lessMethod to fix for standard 67.2 or 67.3
Nitric acid-related nitrogen and
Nitric acid-related nitrogen
10 mg/l or lessMethod to set of standard 43.1 when there is to method to set of standard 43.2.1, 43.2.3 or 43.2.5 when it is in nitric acid-related nitrogen, nitric acid-related nitrogen
Fluorine0.8 mg/l or lessMethod to fix for standard 34.1 or method to advocate in appended chart 6
Boron1 mg/l or lessMethod to fix for standard 47.1 or 47.3 or method to advocate in appended chart 7
1,4-dioxane0.05 mg/l or lessMethod to publish in jifuhyo 7

Remarks
1 standard value assumes the annual mean. But, about the standard value to affect all cyan, we assume high.
When we measure 2 by method to advocate in column of method for measurement that "do not be detected", we call that the result is less than fixed-quantity limit of the method concerned. It is the same in the separate table 2.
About 3 sea areas, the standard value of fluorine and boron does not apply.
We do conversion factor 0.3045 with the sum of thing which took advantage to density of nitric acid ion which was measured by standard 43.1 that the density of 4 nitric acid-related nitrogen and nitric acid-related nitrogen multiplied conversion factor 0.2259 by density of nitric acid ion measured by standard 43.2.1, 43.2.3 or 43.2.5.

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