I. Johnson

6 published titles

Bibliography of ecotoxicological papers published between 1990-1997

1 edition

Short-term ecotoxicological method guidelines for effluent and receiving water assessment (draft)

1 edition

Towards a risk framework for direct toxicity assessment (DTA) of effluent discharges

1 edition

UK Direct Toxicity Assessment (DTA) demonstration programme. River Esk project

1 edition

Ecotoxicological methods : improving the assessments of complex effluents : assessment of sub-lethal fish toxicity text methods

1 edition

The enhanced chemiluminescence (ECL) water quality test : an assessment of the application of the enhanced chemiluminescence test (ECL) within a direct toxicity assessment (DTA) framework

1 edition