Bibliografia

Principal

• Hoffman, D. J.:
• Rattner, B, A. Burton G. A. and Cairns, J. (1995) Handbook of Ecotoxicology (ed.) Lewis publishers, CRC press London Burton, M.A.S. (1986). Biological Monitoring of Environmental Contaminants (Plants). King' s College London, University of London.:

Secundária

• Alloway, B.J. (1990). Heavy metals in the soils. John Wiley & Sons Lda (eds). Press London. Andrews, J.E.:
• Brimblecombe, P:
• Jickells, T.d. and Liss, P.S. (1996) An Introduction to Environmental Chemistry  (eds). Blackwell Science Ltd.: