A case study on co-exposure to a mixture of organic solvents in a Tunisian adhesive-producing company

Table 2 Workplace air concentrations limit values of studied solvents [1, 3, 8–10, 20, 21, 23]

	France (EU¹)		USA (ACGIH²)		Germany (MAK³)		Our Study (Tunisia)
Solvent	TLV ⁴		TLV-TWA ⁵				Adopted TLV
	ppm ⁶	mg.m ^-3	ppm	mg.m ^-3	ppm	mg.m ^-3	ppm	mg.m ^-3
Acetone	500	1210	500	-	500	1200	500	1200
Cyclohexane	200	700	300	-	200	700	200	700
n-hexane	20	72	50	-	50	180	20	72
Methylethylketone (MEK, 2-Methyl ethyl ketone)	200	600	200	-	200	600	200	600
Toluene	50	192	50	-	50	190	50	190
Trichloroethylene	75	405	50	-	-	-	50	-

(1) EU: European Union
(2) ACGIH: American Conference off Governmental Industrial Hygienists
(3) MAK: Maximum Arbeitsplatz-konzentration
(4) TLV: Threshold Limit Value to solvents calculated on the basis of 8 work hour period/day and 39 hours/week
(5) TLV-TWA: Time-Werghted Average (Median values balanced over 8 hours per days and 40 hours per weeks)
(6) ppm: shares per million and volume of air

ISSN: 1745-6673