1. Cadmium in the Human Environment: Toxicity and Carcinogenicity;Nordberg,1993
2. UK Red List Substances: Environmental Protection (Prescribed Processes and Substances) Regulations, 1991 (SI 1991/472).
3. EEC Black List Substances: EEC Directive 76/464/EEC (OJ L129 18.5.76).
4. Integrated Risk Information System (IRIS) on Cadmium;U.S. Environmental Protection Agency,1999
5. Cadmium in the Aquatic Environment;Niragu,1987