1. Nirei H et al. (1994) Groundwater contamination caused by VOCs. Env Res Qur 95: 33–36
2. Suzuki Y (1993) Investigations and remediations at geo-pollution site. In: Geological Society of Japan (ed.) abstracts: the symposium on geo-pollution. Tokyo, p 58
3. Multi-media pollution is called multi-compartment pollution; see also: Urano K (1995) Multi-compartments pollution by volatile organic compounds. Waste Manage Res 6: 13–23
4. Hirata T (1994) Research method of soil and groundwater pollution. Environ Measure Technol 21: 39
5. Kawasaki City (1994) Findings of survey of groundwater pollution. Kawasaki