Table 2

Glycol ethers metabolites in urine of currently exposed and unexposed workers

Metabolites (mg/g creatinine)	All (n = 98)	Currently non-exposed (n = 53)	Currently exposed (n = 45)
DL, detection limits.
Methoxyacetic acid
Median	<DL	<DL	<DL
Range	<DL –0.27	<DL –0.24	<DL –0.27
n>DL	n = 33	n = 13	n = 23
Ethoxyacetic acid
Median	<DL	<DL	<DL
Range	<DL –0.45	<DL –0.38	<DL –0.45
n>DL	n = 8	n = 3	n = 5
n-Propoxyacetic acid
Median	<DL	<DL	<DL
Range	<DL –0.11	<DL –0.10	<DL –0.11
n>DL	n = 5	n = 3	n = 2
Butoxyacetic acid
Median	0.09	0.05	0.12
Range	<DL –0.61	<DL –0.40	<DL –0.61
n>DL	N = 66	n = 27	n = 39
Phenoxyacetic acid
Median	<DL	<DL	<DL
Range	<DL –2.66	<DL –2.03	<DL –2.66
n>DL	n = 42	n = 22	n = 20
2-Methoxypropionic acid
Median	1.16	1.12	1.21
Range	<DL –5.14	<DL –2.5	<DL –5.14
n>DL	n = 98	n = 53	n = 45