Revelation of Threshold Concentrations of Toxicants in Monitoring of Water Quality by Optical Cardiography of Limnetic Mollusks

Abstract

We previously reported the creation of the bioindication system of quality of natural waters used for the preparation of drinking water with the help of limnetic mussels, cardiac rhythms of which substantially depend on the variation in the chemical composition of these natural waters. The question on threshold concentrations, at which bioindication in the described system is implemented, remained unclarified. In this study, due to obtaining the large volume of the experimental data, threshold concentrations for various toxicants, including heavy metals and organophosphorus pesticides are revealed. The optimal temperature range for normal vital activity of mussels in conditions of the used system is established.