Benzene and toluene concentrations in a hemodialysis room in a medium sized South Korean city.
OBJECTIVE
The current study was designed to determine whether the indoor air pollution in a hemodialysis room (HD) was different from that of other comparable areas in a hospital.


METHODS
Five air monitor samplers were hung on the ceiling and placed on the table in both the HD and general ward nursing stations, respectively. In addition, five samplers were placed in the nurse's breathing zone of the HD and the general ward, respectively. Ten air monitor samplers were also placed on the edge of the bed in the HD, which represented the patient's breathing zone. The levels of benzene and toluene were analyzed by GC/MS.


RESULTS
In the general ward, the toluene concentration was significantly higher in the nurse breathing zone than that for the ceiling or table samples (p=0.001). The benzene concentration was also significantly higher in the general ward nurse breathing zone than that in the HD (p=0.006). In addition, the benzene concentrations on the table were higher at the general ward as compared to the HD (p=0.028), but there was no significant difference between the ceiling, general ward station and HD.


CONCLUSIONS
Both the benzene and toluene concentrations in the HD appear to be more affected by the outdoor atmospheric conditions than by any potential indoor internal sources.
Kang
Moon-Soo
MS
Department of Internal Medicine, Soonchunhyang University Medical College, Cheonan Hospital 23-30, Bongmyung-dong, Cheonan, Korea.
Hong
Joong-Rock
JR
Gil
Hyo-Wook
HW
Yang
Jong-Oh
JO
Lee
Eun-Young
EY
Hong
Sae-Yong
SY
Jun
Yong-Taek
YT
Son
Bu-Soon
BS
D000328:Adult; D000368:Aged; D016902:Air Pollution, Indoor / Q000032:analysis*; D001554:Benzene / Q000032:analysis / Q000633:toxicity*; D004784:Environmental Monitoring; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D007676:Kidney Failure, Chronic; D007723:Korea; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D012449:Safety; D014050:Toluene / Q000032:analysis / Q000633:toxicity*; D014505:Urban Population
D014050:Toluene; D001554:Benzene
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