01.06.2010 | Original Article
Genotoxicity surveillance programme in workers dismantling World War I chemical ammunition
Erschienen in: International Archives of Occupational and Environmental Health | Ausgabe 5/2010
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Purpose
To evaluate the effectiveness of personal protective measures in a dismantling plant for chemical weapons from World War I of the Belgian Defence.
Methods
Seventeen NIOSH level B-equipped plant workers exposed to arsenic trichloride (AsCl3) in combination with phosgene or hydrogen cyanide (HCN) were compared to 24 NIOSH level C-protected field workers occasionally exposed to genotoxic chemicals (including AsCl3-phosgene/HCN) when collecting chemical ammunition, and 19 matched referents. Chromosomal aberrations (CA), micronuclei (MNCB and MNMC), sister chromatid exchanges (SCE) and high frequency cells (HFC) were analysed in peripheral blood lymphocytes. Urinary arsenic levels and genetic polymorphisms in major DNA repair enzymes (hOGG1
326
, XRCC1
399
, XRCC3
241
) were also assessed.
Results
SCE and HFC levels were significantly higher in plant-exposed versus referent subjects, but MNCB and MNMC were not different. MNCB, SCE and HFC levels were significantly higher and MNMC levels significantly lower in field-exposed workers versus referents. AsCl3 exposure was not correlated with genotoxicity biomarkers.
Conclusions
Protective measures for plant-exposed workers appear adequate, but protection for field-exposed individuals could be improved.
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