Table 2

Exposure of workers to “chlorine” and nitrogen trichloride during foaming, foaming/rinsing, and rinsing operations

Factory	n*	Mean Cl₂ + NCl₃ (range)
Factory	n*	Foaming	Foaming/rinsing	Rinsing
*Number of samples.
A	41	0.4 (0.11–0.78)	0.47 (0.14–0.74)	0.44 (0.04–1.19)
B	19	1.73 (0.26–5.46)	1.01 (0.35–2.63)	0.51 (0.29–0.85)
C	30	0.54 (0.17–0.98)	0.67 (0.27–1.42)	0.89 (0.16–1.86)
D	11	0.33 (0.19–0.54)		0.34 (0.15–0.59)
E	10	0.88 (0.44–1.66)		0.53 (0.26–0.98)
F	16	0.37 (0.14–0.87)		0.21 (0.11–0.28)
G	11	0.61 (0.24–0.96)		0.32 (0.06–0.49)
H	6	0.22 (0.12–0.29)		0.14 (0.12–0.16)
I	6	0.22 (0.21–0.23)		0.25 (0.18–0.39)
J	5	0.99	0.89 (0.52–1.57)	0.19
K	16	0.45 (0.18–0.77)		0.60 (0.06–2094)
L	7	0.53 (0.18–0.69)	0.16	0.11 (0.03–0.18)
M	27	0.21 (0.13–0.35)	0.17 (0.07–0.37)	0.12 (0.05–0.29)
N	39	0.17 (0.11–0.42)	0.27 (0.12–0.38)	0.15 (0.03–0.36)
O	24	0.11 (0.05–0.19)		0.06 (0.01–0.26)
P	6	0.31 (0.13–0.56)		0.45
Q	7	0.31 (0.20–0.36)	0.22 (0.18–0.23)	0.29 (0.20–0.37)
General means (range)		0.49 (0.05–5.46)	0.48 (0.07–2.63)	0.33 (0.01–2.94)