From: Concentration, sources and health effects of silica in ambient respirable dust of Jharia Coalfields Region, India
Site
No. of samples
Mean dust conc. (µg/m3)
Mean silica conc. (µg/m3)a
Bank More PS
34
406
97.44
Govindpur
311
108.85
Jeenagora (Lodna)
490
73.50