Abstract
Organizing bioassay data of various chemicals was tried in this work to make use of those data much more effectively and practically for the toxicity control and management of environmental waters. We organized the bioassays' data of single/multi-component chemicals by fitting their dose response relations with formulas. The formulation was generally successful for single/multi-component chemicals except some cases. In addition, interactions among component chemicals were examined by isobole diagram. The toxicity contribution of each chemical in environmental water could be estimated by this method. These trials could be useful for water quality control based on bioassays.