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Table 3 Results of exposure reenactment of dichloromethane

From: IgA nephropathy in a laboratory worker that progressed to end-stage renal disease: a case report

Measurement point Duration (min) Short-term exposure concentration (ppm) Time-weighted average concentration (ppm)
A. Ultrasound-assisted extractor 1 (Respiratory location) 23 68 254
26 200
21 359
26 301
18 374
B. Ultrasound-assisted extractor 2 (Respiratory location) 23 91 181
26 157
21 88
26 228
18 359
C. Above the ultrasound-assisted extractors 113 - 179
  1. OEL (Occupational exposure limit): Time-weighted average 50 ppm (the Korean Industrial Safety and Health Act), short-term exposure limit 125 ppm (OSHA)