Skip to main content

Table 2 Emission factors, generation rates and modeled concentrations of Cr and Ni resulting from electric arc welding at Plant 2

From: Risk assessment of occupational exposure to heavy metal mixtures: a study protocol

Metal

Cr

Ni

EF (g/kg) of E7018 consumed

0.006

0.002

EF (g/kg) of E6013 consumed

0.004

0.002

Generation rate G (mg/min)

0.0180

0.0064

Modeled Concentration NF ss (mg/m3)

25.2 10−4

8.9 10−4

Modeled Concentration FF ss (mg/m3)

1.27 10−4

0.452 10−4

  1. EF emission factor, NF near field, FF far field, ss steady state