Where:
C = concentration of lead emissions for the entire facility, mg/dscm (gr/dscf).
Ca = concentration of lead emissions from facility "a," mg/dscm (gr/dscf).
Qsda = volumetric flow rate of effluent gas from facility "a," dscm/hr (dscf/hr).
n = total number of control devices to which separate operations in the facility are ducted.
Where:
E = emission rate of lead, mg/kg (lb/ton) of lead charged.
CPbi = concentration of lead from emission point "i," mg/dscm (gr/dscf).
Qsdi = volumetric flow rate of effluent gas from emission point "i," dscm/hr (dscf/hr).
M = number of emission points in the affected facility.
P = lead feed rate to the facility, kg/hr (ton/hr).
K = conversion factor, 1.0 mg/mg (7000 gr/lb).
Where:
N = number of lead ingots charged.
W = average mass of the lead ingots, kg (ton).
[THETA] = duration of run, hr.
40 C.F.R. §60.374a