%0 Journal Article %A D G Ellingsen %A L BarregÄrd %A P I Gaarder %A B Hultberg %A H Kjuus %T Assessment of renal dysfunction in workers previously exposed to mercury vapour at a chloralkali plant. %D 1993 %R 10.1136/oem.50.10.881 %J British Journal of Industrial Medicine %P 881-887 %V 50 %N 10 %X Urinary albumin concentration (U-alb) and N-acetyl-beta-D-glucosaminidase (U-NAG) and glomerular basement membrane antibodies (a-GBMs) in serum samples were measured in 77 chloralkali workers previously exposed to mercury (Hg) vapour and 53 age matched referents. The exposure ceased on average 12.3 (range 1-35) years before the study. The mean exposure time was 7.9 (range 1.1-36.2) years. The mean yearly urinary Hg concentration (U-Hg) was 531 nmol/l. The concentrations of the urinary isoenzymes NAG A (U-NAG A) and NAG B (U-NAG B) were determined in 30 highly exposed subjects and 30 referents. No differences in U-alb or U-NAG, U-NAG A, or U-NAG B were found between the groups. Higher concentrations of a-GBMs were found among subjects who stopped exposure a short time before the study, but there was no association between a-GBMs and U-alb. The U-NAG and U-NAG A were negatively correlated with storage time. The results may suggest that microalbuminuria and enzymuria reported in subjects with ongoing exposure to Hg vapour are reversible in most instances. %U https://oem.bmj.com/content/oemed/50/10/881.full.pdf