| ecotoxicological evaluation of wastewater treatment plant effluent discharges: a case study in prato (tuscany, italy). | textile wastewaters, which contain numerous chemicals such as dyes, surfactants, solvents, organic and inorganic salts, can cause severe pollution problems for the receiving freshwaters. the ecotoxicity of wastewaters in prato, where there are about 14,000 textile and related factories, was investigated from 1996-1999 by means of bioassays. 147 samples of reclaimed wastewater were collected at the outlets of 4 centralized wastewater treatment plants. the acute and chronic toxicity of the effluen ... | 2004 | 15366513 |