LIMITS OF POLUTENT THERMAL POWER PROJECT

CPCB ( Central Pollution Board Control) a Govt body specify following limits for industrial area. They have also specified of other residential areas and sensitive area also .However other areas are not our point of discussion except industrial area.

AMBIENT AIR QUALITY.

Pollutant	Time weighted average		Indl. Area (g/m3)		Res. Rural Other areas (g/m3)		Sensitive Area (g/m3)
Sulphur Dioxide (SO2)	* Annual average ** 24 hours		80 120		60 80		15 30
Oxides of Nitrogen	* Annual Average ** 24 hour		80 120		60 80		15 30
Suspended Particulate Matter (SPM)	* Annual Average ** 24 hour		360 500		140 200		70 100
Resperiable Particulate.		Annual Average ** 24 hours		120 150		60 100		50 75
Lead (Pb)	Annual Average ** 24 hours		1.0 1.5		0.75 1.0		0.50 0.75

Carbon monooxide (CO)

** 8 hour 1 hour

5000.0 10000.0

2000.0 4000.0

1.0 2.0

Type of measurement has also been specified but that is beyond our discussion.