E = (cs Qsd)/(P K)
where:
E = emission rate of particulate matter, kg/Mg (lb/ton) of phosphate rock feed.
cs = concentration of particulate matter, g/dscm (g/dscf).
Qsd = volumetric flow rate of effluent gas, dscm/hr (dscf/hr).
P = phosphate rock feed rate, Mg/hr (ton/hr).
K = conversion factor, 1000 g/kg (453.6 g/lb).
40 C.F.R. §60.404