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Proposals for acceptable concentrations of airborne microorganisms in the working environment according to the Team of Experts in Biological Factors (ZECB)—the values applicable in Poland
| Microbiological agent | Acceptable concentration (CFU/m3) |
|---|---|
| Mesophilic bacteria (total count) | 100,000 |
| Mesophilic bacteria (respirable fraction—RF) | 50,000 |
