The highly polluting industries such as Power, Cement, Iron & Steel, Chlor-alkali, Pharmaceuticals, Fertilizers, Refineries, Pesticides, Distilleries, Sugar, Pulp & Paper, Textile, Tanneries, and other categories of industries emit particulate matter and other gaseous pollutant into atmosphere. These industries also release pollutants through effluent discharge. The SPCBs and PCCs have prescribed standards for various pollutants
emitted/ discharged by the industries as notified under the Environment (Protection) Act,1986. The compliance monitoring needs to be strengthened to ensure that emissions/ effluent complying with the stipulated norms are only discharged by the industries. Various technologies are available for monitoring the particulate matter and gaseous emission from the stack of industries and common treatment facilities in terms of the parameters specified in the directions issued by CPCB. However, no guidelines on selection of the Continuous Emission Monitoring Systems (CEMS) are available. This guideline document has aimed to help industries and regulator for proper implementation of online emission monitoring system through proper selection, operation and data transfer in a transparent self-regulatory mechanism.