Emission standards for stationary

Stern, A. C., National Emission Standards for Stationary Sources, /. Air... 

HPhe Environmental Protection Agency has set strict emission standards for stationary combustion sources. No more than 0.01 /xg Be/m3 may occur in the ambient atmosphere around such sources, and a maximum of 10 g may be emitted in a 24-hr period (I). The earth s crust is estimated to contain about 0.001% beryllium, mostly as inorganic minerals. Beryllium has been reported at the parts-per-million level in coal, and in survey analyses with emission spectroscopic techniques Russian authors have reported the detection of unspecified levels in petroleum (2,3,4),... 

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