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Collection and Extraction of Occupational Air Samples for Analysis of Fungal DNA

Collection and Extraction of Occupational Air Samples for Analysis of Fungal DNA

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[Guidelines for occupational exposures to mechanical vibration.]

Massimo Bovenzi¹, Marcella Mauro¹

¹Bioengineering Department S. Maugeri Foundation, Telese Terme (BN), Italy.

Giornale Italiano Di Medicina Del Lavoro Ed Ergonomia

|June 20, 2018

Summary

This study reviews vibration exposure limits for hand-transmitted vibration (HTV) and whole-body vibration (WBV). Epidemiological data support HTV limits, but WBV limits lack validation.

Keywords:

biodynamics epidemiology exposure values mechanical vibration

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Area of Science:

Occupational Health
Biomechanics
Ergonomics

Background:

European Union Directive 2002/44/EC and Italian Decree 81/2008 set exposure limits for hand-transmitted vibration (HTV) and whole-body vibration (WBV).
These limits are based on 8-hr frequency-weighted root mean square (r.m.s.) acceleration magnitude.
Assessing the scientific basis of these established values is crucial for worker safety.

Purpose of the Study:

To critically evaluate the scientific evidence supporting the daily exposure action values (EAV) and daily exposure limit values (ELV) for HTV and WBV.
To compare EU and Italian legislation regarding vibration exposure standards.
To determine the validity of current exposure limits based on experimental and epidemiological findings.

Main Methods:

Review of existing epidemiological studies on hand-arm vibration syndrome (HAVS) and whole-body vibration effects.
Analysis of experimental data concerning human responses to vibration exposure.
Comparison of regulatory values with scientific evidence for HTV and WBV.

Main Results:

Epidemiological studies provide support for the HTV EAV of 2.5 ms-2 r.m.s. and ELV of 5 ms-2 r.m.s., particularly for the vascular component of HAVS (e.g., secondary Raynaud's phenomenon).
Experimental evidence supports the WBV EAV of 0.5 ms-2 r.m.s.
There is a lack of biodynamic or epidemiological validation for the WBV ELV of 1.15 ms-2 r.m.s. (1 ms-2 r.m.s. in Italian legislation).

Conclusions:

The current HTV exposure limits appear to have a reasonable basis in epidemiological findings for specific health outcomes.
The scientific justification for the established WBV ELV is weak, indicating a need for further research and potential revision.
Regulatory bodies should ensure that vibration exposure limits are robustly supported by scientific evidence to effectively protect workers' health.