soil pollution

☆ soil pollution?

Mechanism for the occurrence of soil pollution
And soil pollution, This is a state in which soil and groundwater is contaminated hazardous substances (Hazardous Substances) to penetrate the soil.
• The use of harmful substances, I enter into the soil or hazardous substance spills, wastewater containing toxic substances to leak.
And waste, including the hazardous substance is buried in the soil, it happens such as by seep into the soil around by rain.

☆ Features of soil pollution!

It is not visibly contaminated soil.
I don't know that's soil pollution If you do not do research and analysis.
So, it is necessary to obtain accurate information by the soil pollution survey.
And you do not make soil pollution disappear.
Hazardous substances that are discharged to the soil from the factory 30 years ago is not deleted, even after 30 years.
It is a 1970 made ​​noise pollution for the first time in the world, anti-pollution measures the Basic Law to have been enacted.
Later, such as air pollution law and the Water Pollution Control Law was enacted.
In other words, there was no regulation on the use of hazardous substances before it.
Currently, it is supposed to be no factory or the like, even in the land no reported use of hazardous substances, the land factories that are likely to use the hazardous substances in the past had passed, about the possibility of contamination you would.
In order to understand the risk of soil pollution, to examine not only the current land use, land use in the past also important.

☆ the Soil Contamination Countermeasures Law?

Soil Contamination Countermeasures Law was enacted in May 2002.
This law, it is possible to grasp the situation of soil pollution, to implement the prevention and measures and measures for health damage of human by, and was developed with the goal to protect the health of the people.
In other words, the law was created to prevent a health hazard to the public due to soil pollution. This law of national health, plant, which are dealt with hazardous material (hazardous substance use specific facilities) Or if you want to abolish, if you want to change the traits of land of 3,000 square meters or more, the risk of soil pollution is high,
such as in the old factory site, In the case where it is likely to cause a health hazard to humans, and that the owner of the land to investigate the status of soil pollution is compulsory.
The increase when compared with the year in which the Soil Contamination Countermeasures Law was enacted, soil pollution survey number is 11,591 cases in 2008, It was 9,177 reviews 8,858 cases in 2009, in 2010.
Among the surveys conducted in 2010, duty investigation based on the law ordinances 15%, the remaining 85% was a voluntary investigation.