Title: Heisei 22-nendo tei-kosuto, teifukagata dojō osen chōsa, taisaku gijutsu kentō chōsa oyobi daiokishin-rui osen dojō jōka gijutsu tō kakuritsu chōsa (kōatsu jetto-sui o mochiita dojō senjō gijutsu) hōkokusho
Subjects: Oil pollution of soils
Places: Japan