- The calculated TWA for the personal sample is (0.041 ppm), which did not exceed OSHA-PELs (0.75 ppm) for Formaldehyde, but did exceed both ACGIH-TLVs (0.3 ppm) and NIOSH-RELs (0.016 ppm) for Formaldehyde.
- The calculated TWA for the desk area sample is (0.022 ppm), which did not exceed OSHA-PELs (0.75 ppm) for Formaldehyde nor did it exceed ACGIH-TLVs (0.3 ppm), but it did exceed the NIOSH-RELs (0.016 ppm) for Formaldehyde.
- The calculated TWA for the cadaver area sample is (0.032 ppm), which did not exceed OSHA-PELs (0.75 ppm) for Formaldehyde, but did exceed both ACGIH-TLVs (0.3 ppm) and NIOSH-RELs (0.016 ppm) for Formaldehyde.
• Discussion and Conclusion:
To calculate the TWA a similar exposure method was used to assume worst case scenario. The results showed that the worker was not exposed to Formaldehyde concentrations exceeding OSHA-PELs in all calculated TWAs, which are the maximum exposure limits allowed under Federal law, which should be followed by the employers to protect the health of their workers. On the other hand, the results also indicated that all calculated TWAs exceeded NIOSH-RELs, and the ACGIH-TLV was exceeded in the personal and cadaver calculated TWAs. These limits were established based on standards higher than the ones used by OSHA, but are not enforced by law. Employers should comply with OSHA limits and try to go beyond with higher standards if feasibly possible to provide a safer working environment for their employees.
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After implementing new control measures follow up sampling and analysis should be