Genotoxic effects in occupational exposure to formaldehyde: A study in anatomy and pathology laboratories and formaldehyde-resins production

Table 2 FA exposure in the two occupational settings

	Factory	Laboratories
Exposure duration (Years)
Range	1 - 27	1 - 33
Mean	6.2	14.5
St. Deviation	6.74	9.12
Working hours/day (h)	7	7
Number of Samples (TWA measures)	2	29
FA exposure level (TWA_{8 h}) (ppm)
Range	0.20 - 0.22	0.05 - 0.51
Mean	0.21	0.28
FA ceiling concentration (ppm)
Range	0.003 - 1.04	0.02 - 5.02
Mean	0.52	2.52

ISSN: 1745-6673