Analysis of Soil

Introduction

Recently, along with redevelopment at old factory sites, etc., ground contamination with heavy metals and volatile organic compounds has become increasingly obvious. Due to this situation, the “Soil Contamination Countermeasures Law” was enacted on May 29, 2002 to protect the public health, and enforcement of the law began on February 15, 2003. Since it is probable that exposure to specific toxic substances over a long period of time results in high concentrations in the ground surface layer, and that these toxins enter the soil directly, maximum concentration standards were set for nine items. Twenty-five substances were specified as risks with respect to infiltration into underground water. Accordingly, it is necessary to conduct risk assessment with respect to these items at sites that are being investigated.

September 25, 2009 GMT