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
Item	The standard value	Method for measurement
Cadmium	0.003 mg/l or less	Japanese 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 cyan	Do 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
Lead	0.01 mg/l or less	Method to fix for standard 54
Hexavalent chromium	0.05 mg/l or less	Method to fix for standard 65.2
Arsenic	0.01 mg/l or less	Method to fix for standard 61.2 or 61.3
Total mercury	0.0005 mg/l or less	Method to advocate in appended chart 1
Alkyl mercury	Do not be detected.	Method to advocate in appended chart 2
PCB	Do not be detected.	Method to advocate in appended chart 3
Dichloromethane	0.02 mg/l or less	Method to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Carbon tetrachloride	0.002 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,2-dichloroethane	0.004 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1 of Japanese Industrial Standards k0125 or 5.3.2
1,1-dichloroethylene	0.1 mg/l or less	Method to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Cis-1,2-dichloroethylene	0.04 mg/l or less	Method to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
1,1,1-trichloroethane	1 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,1,2-trichloroethane	0.006 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
Trichloroethylene	0.01 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
Tetrachloroethylene	0.01 mg/l or less	Method to fix for 5.1, 5.2, 5.3.1, 5.4.1 of Japanese Industrial Standards k0125 or 5.5
1,3-dichloropropene	0.002 mg/l or less	Method to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.1
chiuramu	0.006 mg/l or less	Method to advocate in appended chart 4
Simazine	0.003 mg/l or less	Method to advocate to the first or the second of appended chart 5
chiobenkarubu	0.02 mg/l or less	Method to advocate to the first or the second of appended chart 5
Benzene	0.01 mg/l or less	Method to fix for 5.1, 5.2 of Japanese Industrial Standards k0125 or 5.3.2
Selenium	0.01 mg/l or less	Method to fix for standard 67.2 or 67.3
Nitric acid-related nitrogen and Nitric acid-related nitrogen	10 mg/l or less	Method 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
Fluorine	0.8 mg/l or less	Method to fix for standard 34.1 or method to advocate in appended chart 6
Boron	1 mg/l or less	Method to fix for standard 47.1 or 47.3 or method to advocate in appended chart 7
1,4-dioxane	0.05 mg/l or less	Method 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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