Here are entered works on estimating and evaluating the actual or potential hazards that toxic substances pose to an ecosystem. Works on estimating and evaluating the effects that human activities have on living organisms and their habitats are entered under Ecological assessment (Biology).
Here are entered works on evaluation of the condition of a body of water based on surveys and other measurements of the resident biota. Works on testing to determine the degree of pollution of water by comparing its effect on a living organism with the effect of a standard preparation are entered under Water quality bioassay.
Here are entered works on estimating and evaluating the actual or potential hazards that toxic substances pose to an ecosystem. Works on estimating and evaluating the effects that human activities have on living organisms and their habitats are entered under Ecological assessment (Biology).