About HATA TOSHIRO
About SHINDO KAZUO
About IGARASHI TOSHIFUMI
About TATSUMI KEN'ICHI
About ドーコン
About 地盤工学会誌
About toxic substance
About pollutant
About soil microorganism
About laws and regulations
About soil pollution
About Hokkaido
About sampling
About arsenic
About heavy metal
About Environmental Pollution
About concentration (ratio)
About background
About peat
About analysis
About gene
About Microbiome
About soil contaminant
About arsenic contamination
About gene analysis
About City of Sapporo
About heavy metals in the environment
About Soil Contamination Countermeasures Law
About microbial community structure
About background concentration
About background value
About Pollutants in general
About Soil organisms
About Field surveys,soil tests
About サンプリング
About 有害物質
About 評価