| Characteristic | Achievement rate for environmental standards |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Source
Release date
September 2017
More information
Region
Japan
Survey time period
fiscal year 2006 to 2015; the Japanese fiscal year starts on April 1 of the stated year and ends on March 31 of the following year
Supplementary notes
The source provides the following calculation: compliance rate (%) = (number of water areas meeting the standards / number of type-designated water areas) × 100
For the water areas subject to environment standards both for total nitrogen and total phosphorus, they are classified as water area achieving the standard only when both total nitrogen and total phosphorus fulfill the environment standards.
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