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Environmental standard (dioxin)

Last update date March 12, 2019

In this page, we speak Ministry of the Environment notification that determined environmental standard of dioxin based on the Act on Special Measures concerning Countermeasures against Dioxins.
Standard of quality of bottom of the bottom was added in addition to the conventional atmosphere, quality of the water, standard of the soil by this revision.
December 27, 1999 Environmental Agency notification No. 68
Revised July 22, 2002 Ministry of the Environment notification No. 46
Based on regulations of Act on Special Measures concerning Countermeasures against Dioxins (1999 law No. 105) Article 7, we apply about environmental standard to affect atmospheric pollution by dioxin, contamination (include pollution of quality of bottom of the bottom.) of the quality of the water and pollution of the soil as follows from fate, January 15, 2000.

About environmental standard to affect atmospheric pollution by dioxin, contamination (include pollution of quality of bottom of the bottom.) of the quality of the water and pollution of the soil

What is maintained in protecting a person's health in condition on environment modifying atmospheric pollution by dioxin based on regulations of Act on Special Measures concerning Countermeasures against Dioxins Article 7 and (include pollution of quality of bottom of the bottom.) pollution of the bi soil does desirable standard (we say "environmental standard" as follows.) as follows.

The first environmental standard

  1. We do environmental standard with just what to advocate in clause of the standard value of the table for each medium to advocate in clause of medium of separate table.
  2. When we measure to investigate the achievement situation of 1 environmental standard, we shall perform by method to raise in clause of method for measurement of the table in the point that can grasp the situation of pollution by dioxin or contamination for each medium to advocate in clause of medium of separate table precisely.
  3. Environmental standard to affect atmospheric pollution does not apply about specialized industrial zone, area where the road or other general public does not usually live or place.
  4. Environmental standard to affect contamination (pollution of quality of bottom of the bottom is excluded.) of the quality of the water applies about public waters and groundwater.
  5. Environmental standard to affect pollution of quality of bottom of the bottom applies about quality of bottom of the public waters.
  6. Environmental standard to affect pollution of the soil is place of the reclaimed land others of refuse and, about the soil modifying facility distinguished appropriately from the outside, does not apply.

The second achievement period

  1. When it is in area where environmental standard is not accomplished or area of the sea, we decide to act to be accomplished as soon as possible.
  2. When it is in area where, in fact, environmental standard is accomplished or area of the sea or area where environmental standard was accomplished or area of the sea, we decide to act for the maintenance.
  3. When it is not anticipated that environmental standard to affect pollution of the soil is accomplished early, we take necessary measures when there is and decide to prevent environment influence to be caused by pollution of the soil.

Review of the third environmental standard

When scientific knowledge about dioxin improves, we decide to review the standard value appropriately.

Separate table
MediumThe standard valueMethod for measurement
The atmosphereLess than 0.6pg-TEQ/m3Collection pipe which attached polyether foam in filter paper latter half
Sample which we gathered by air sampler which we attached,
Method to measure by high-resolution gas chromatograph mass spectrometer
The quality of the water
(quality of bottom of the bottom is excluded.)
Less than 1pg-TEQ/LMethod to set of Japanese Industrial Standards K0312
Quality of bottom of the bottomLess than 150pg-TEQ/gSoxhlet extracts dioxin included in quality of bottom of the bottom,
Method to measure by high-resolution gas chromatograph mass spectrometer
The soilLess than 1,000pg-TEQ/gSoxhlet extracts dioxin included in the soil,
Method to measure by high-resolution gas chromatograph mass spectrometer
Remarks
1 standard value assumes value in terms of the toxicity of 2,3,7,8-tetrachloride dibenzo - Para - dioxin.
The standard value of 2 atmosphere and quality of the water (quality of bottom of the bottom is excluded.) assumes the annual mean.
When is in 3 soil, environmental standard is accomplished, and quantity of dioxin in the soil
When it is 250pg-TEQ/g or more, we decide to carry out necessary investigation.

Inquiry to this page

Environmental Planning Bureau environment Maintenance Division Environment Administration Division

Telephone: 045-671-3507

Telephone: 045-671-3507

Fax: 045-641-3580

E-Mail address [email protected]

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