Environmental Quality Standards for Water Pollution
The Ministry of the Environment of Japan has established environmental quality standards for air, water, soil, and noise as appropriate criteria for protecting human health and conserving the living environment.The "Environmental Quality Standards for Water Pollution" are environmental quality standards relating to the pollution of public water bodies, which include (1) environmental quality standards for protection of human health and (2) environmental quality standards for conservation of the living environment. (1) Environmental quality standards for protection of human health have been established as standard values for 27 items, including cadmium, total cyanide, lead, arsenic, total mercury, and PCBs, for all public water bodies. (2) Environmental quality standards for conservation of the living environment have been established as standard values for 8 to 11 items, including pH, BOD, COD, SS, DO, and total coliform, for each public water body of rivers, lakes, and coastal waters. Fujifilm Wako supplies a wide range of reagents specified in the measurement methods of the Standards.
Japanese Environmental Quality Standards for Water Pollution
Details of environmental Quality standards for water pollution are available on the website of the Ministry of the Environment of Japan.
| Item | Standard values | MeasurementMethod |
|---|---|---|
| Cadmium (Cd) | ≦0.003 mg/L | Air heating atomic absorption method (JIS K0102 55.2) ICP emission spectrometry (JIS K0102 55.3) ICP mass spectrometry (JIS K0102 55.4) |
| Total Cyanide | Not detectable | All cyanide(JIS K0102 38.1.2) Pyridine-pyramizolone absorption spectrophotometry (JIS K0102 38.2) 4-Pyridinecarboxylic acid-pyrazolone absorption spectrophotometry(JIS K0102 38.3) Flow analysis method (JIS K0102 38.5) 4-Pyridinecarboxylic acid-pyrazolone absorbance spectrophotometry(Appendix 1) |
| Lead | ≦0.01 mg/L | Flame atomic absorption method (JIS K0102 54.1) Electric heating atomic absorption method (JIS K0102 54.2) ICP emission spectrometry (JIS K0102 54.3) ICP mass spectrometry (JIS K0102 54.4) |
| Hexavalent Chromium | ≦0.02 mg/L | Diphenylcarbazide absorption spectrophotometry (JIS K0102 65.2.1) Electron heating atomic absorption method (JIS K0102 65.2.3) ICP atomic emission spectrometry (JIS K0102 65.2.4) ICP mass spectrometry (JIS K0102 65.2.5) Flow analysis method (JIS K0102 65.2.6)*1 |
| Arsenic | ≦0.01 mg/L | Hydride generation atomic absorption method (JIS K0102 61.2) Hydride generationICP atomic emission spectrometry (JIS K0102 61.3) ICP mass spectrometry (JIS K0102 61.4) |
| Total Mercury | ≦0.0005 mg/L | Atomic absorption method (Appendix 2) |
| Alkyl Mercury | Not detectable | Gas chromatography (Appendix 3) |
| PCB | Not detectable | Gas chromatography (Appendix 4) |
| Dichloromethane | ≦0.02 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) Purge/trap-gas chromatographywithhydrogen flameionization detector (FID)(JIS K0125 5.3.2) |
| Carbon Tetrachloride | ≦0.002 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) Purge and trap-gas chromatographywith electron capture detector (ECD)(JISK0125 5.3.1) Headspace-Gas chromatography-mass spectrometrywith electron capturedetector (ECD)(JIS K0125 5.4.1) Solvent extraction and gas chromatography (JIS K0125 5.5) |
| 1,2-Dichloroethane | ≦0.004 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) Purge and trap-gas chromatographywith electron capture detector (ECD)(JISK0125 5.3.1) Purge/trap-gas chromatographywithhydrogen flameionization detector (FID)(JIS K0125 5.3.2) |
| 1,1-Dichloroethylene | ≦0.1 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) |
| cis-1,2-Dichloroethylene | ≦0.04 mg/L | Purge/trap-gas chromatographywithhydrogen flameionization detector (FID)(JIS K0125 5.3.2) |
| 1,1,1-Trichloroethane | ≦1 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) |
| 1,1,2-Trichloroethane | ≦0.006 mg/L | Purge and trap-gas chromatographywith electron capture detector (ECD)(JISK0125 5.3.1) |
| Trichloroethylene | ≦0.01 mg/L | Headspace-Gas chromatography-mass spectrometrywith electron capturedetector (ECD)(JIS K0125 5.4.1) |
| Tetrachloroethylene | ≦0.01 mg/L | Solvent extraction and gas chromatography (JIS K0125 5.5) |
| 1,3-Dichloropropene | ≦0.002 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) Purge and trap-gas chromatographywith electron capture detector (ECD)(JISK0125 5.3.1) |
| Thiram | ≦0.006 mg/L | High performance liquid chromatography (Appendix 5) |
| Shimadin | ≦0.003 mg/L | Gas chromatography-mass spectrometry by solvent extraction or solid phaseextraction (Appendix 6,1) |
| Thiobencarb | ≦0.02 mg/L | Gas chromatography by solvent extraction or solid phase extraction (AppendixTable 6,2) |
| Benzene | ≦0.01 mg/L | Purge and trap-Gas chromatography-mass spectrometry (JIS K0125 5.1) Headspace-Gas chromatography mass spectrometry (JIS K0125 5.2) Purge/trap-gas chromatography with hydrogen flameionization detector (FID)(JIS K0125 5.3.2) |
| Selenium | ≦0.01 mg/L | Hydrogen compound generation atomic absorption method (JIS K0102 67.2) Hydrogen compound generationICP emission spectrometry (JIS K0102 67.3) ICP mass spectrometry (JIS K0102 67.4) |
| Nitrate nitrogen and Nitrite nitrogen | ≦10 mg/L | Nitrate nitrogen: Reducing distillation-Indophenol blue absorbance spectrophotometry (JIS K0102 43.2.1) Copper and cadmium column reduction-Naphthylethylenediamine absorption spectrophotometry (JIS K0102 43.2.3) Ion chromatography (JIS K0102 43.2.5) Flow analysis method (JIS K0102 43.2.6) Nitrite nitrogen: Naphthylethylenediamine absorption spectrophotometry (JIS K0102 43.1.1) Ion chromatography (JIS K0102 43.1.2) Flow analysis method (JIS K0102 43.1.3) |
| Fluorine | ≦0.8 mg/L | Lanthanum-alizarin complexon absorption spectrophotometry (JIS K010234.1)*2 Flow analysis method (JIS K0102 34.4)*3 Distillation operation (JIS K0102 34.1.1 c)*4, 5 Ion chromatography (Appendix 7) |
| Boron | ≦1 mg/L | ICP emission spectrometry (JIS K0102 47.3) ICP mass spectrometry (JIS K0102 47.4) |
| 1,4-Dioxane | ≦0.05 mg/L | Activated Carbon Extraction-Gas Chromatography-Mass Spectrometry(Appendix Table 8, 1) Purge Trap-Gas Chromatography-Mass Spectrometry (Appendix 8,2) Headspace-Gas chromatography-mass spectrometry (Appendix Table 8,3) |
*1: Perform the procedure specified in JIS K0170-7 7 a) and b) if brackish water or seawater is measured.
*2: Except Note 1.
*3: If a sample containing a large amount of halogen compounds or hydrogen halides as interfering substances is measured, mix a solution of 10 mL of sulfuric acid, 60 mL of phosphoric acid, and 10 g of sodium chloride dissolved in approximately 200 mL of water with 250 mL of glycerin, and add water to make 1,000 mL. Use this solution as the distillation reagent solution, and add a line of aluminum solution as described in the note of Figure 2 of JIS K 0170 6-6.
*4: Note (2) Except for the third sentence and Note 1 to Standard 34.
*5: This may be omitted if the absence of suspended matter or substances interfering with ion chromatography has been confirmed.
Measurement Method (Appendix)
See the Ministry of Environmental Japan website for Measurement Method. (in Japanese)
Appendix 1: Toatl Cyanide
Appendix 2: Total mercury
Appendix 3: Alkyl mercury
Appendix 4: PCBs
Appendix 5: Thiram
Appendix 6: Simazine and Thiobencarb
Appendix 7: Fluoride
Appendix 8: 1,4-Dioxane
Appendix 9: Suspended soids (SS)
Appendix 10: Total coliform
Appendix 11: Nonylphenol
Appendix 12: Linear Alkylbenzenesulphonic acid and its salts
Appendix 13: Dissolved oxygen concentration (bottom water)
Appendix 14: n-Hexane Extract (oil, etc.)
Product List
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Cadmium
Total Cyanide
Lead
Hexavalent Chromium
Arsenic
Total Mercury / Alkyl Mercury
PCB
Thiram
Thiobencarb
Benzene
Selenium
Nitrate nitrogen
Fluorine
Boron
1,4-Dioxane
For research use or further manufacturing use only. Not for use in diagnostic procedures.
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