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 |