BIO-MONITORING OF WATER

USE FOR TOXICITY MONITORING IN EFFLUENT REGULATION?

Toxicity is the property of a chemical to cause harm to the life prosess.

One of the long-term objectives for pollution Control Boards is that the all the natural water bodies should remain free from harmful effects, to man and aquatic life, caused by polluted discharges. For the regulation of effluent discharges, one should estimate the actual damage an effluent is causing to the aquatic environment. Toxicity test can play a vital role in effective control strategy for complex effluents. Being effective, cheaper and easy to perform, the toxicity test can help decision maker in:

  • Identifying environmental problems;
  • Establishing priorities for pollution control efforts;
  • Identifying and implementing appropriate control measures;
  • Monitoring compliance with regularly limit on toxicity
CPCB along with seven other National/State laboratories has formulated a method for toxicity testing of industrial effluents for estimating dimensionless toxicity number within the scope of Water Act, 1974 and EPA, 1986, to be used in the control of compliance with consent procedures.

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