Stack Emission Standards CPCB - Stack Emission Limits

As per CPCB or Indian standards for Industrial Stack Monitoring the flue gas emission from boiler stack, DG set emissions, the furnace should not exceed the limit for Particulate matter beyond 150 mg/Nm3. However, this limit can vary depending on the industry type.

Stack Emission Standards CPCB - Stack Emission Limits

S.No	Stack Monitoring Parameters for Boilers and DG Sets	Stack Monitoring Limits / Standards As per CPCB (in mg/Nm3)
1	Particulate Matter (PM)	150
2	Sulphur Dioxide (SO2)	40
3	Oxides of Nitrogen (NOx)	25
4	Total Fluoride (F)	25
5	Mercury (Hg)	0.2
6	Chlorine (Cl)	15
7	Hydrochloric Acid Vapor & Mist (HCl)	35
8	Sulphuric Acid Mist (H2SO4)	50
9	Carbon Monoxide (CO)	1%
10	Lead (Pb)	10