where:
E = emission rate of total fluorides, g/hr/Mg (lb/hr/ton) of equivalent P2O5 stored.
Csi = concentration of total fluorides from emission point "i," mg/dscm (gr/dscf).
Qsdi = volumetric flow rate of effluent gas from emission point "i," dscm/hr (dscf/hr).
N = number of emission points in the affected facility.
P = equivalent P2O5 stored, metric tons (tons).
K = conversion factor, 1000 mg/g (7,000 gr/lb).
P = Mp Rp
where:
Mp = amount of product in storage, Mg (ton).
Rp = P2O5 content of product in storage, weight fraction.
40 C.F.R. §60.244