This paper is about the toxicity tests that are now incorporated into landfill hazard assessment. Toxicity of leachate in a lagoon draining the Aba- Eku landfill, Ibadan, Nigeria was investigated using bioassays.

The overall objective of the present project is to present information concerning sources of heavy metals to waste, harmful effects of heavy metals, the problems posed by the disposal and recycling of heavy metals and heavy metal containing products, and to ...