Title: Heisei 21-nendo tei kosuto, tei fukagata dojō osen chōsa, taisaku gijutsu kentō chōsa oyobi daiokishin-rui osen dojō jōka gijutsu tō kakuritsu chōsa
Subjects: Soil pollution, Case studies, Measurement, Dioxins, Steam engineering
Places: Japan