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2004 | 11 | 2 |
Tytuł artykułu

Ochratoxin A in grain dust - estimated exposure and relations to agricultural practices in grain production

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Ochratoxin A (OTA) is a nephrotoxin frequently contaminating grains. OTA inhalation during grain handling may therefore represent a health risk to farmers, and was the subject of this study. Airborne and settled grain dust was collected during grain work on 84 Norwegian farms. Climate and agricultural practices on each farm were registered. Penicillium spp., Aspergillus spp. and OTA in settled dust were measured. Settled dust contained median 4 µg OTA/kg dust (range 2-128), correlating with Penicillium spp. (median 40 cfu/mg; range 0-32000, rs=0.33; p<0.01). Similar levels were found across grain species, districts and agricultural practices. Penicillium levels, but not OTA levels, were higher in storage than in threshing dust (p=0.003), and increased with storage time (rs=0.51, p<0.001). Farmers were exposed to median 1 mg/m3 (range 0.2-15) dust during threshing and median 7 mg/m3 (range 1-110) dust during storage work, equalling median 3.7 pg/m3 (range 0.6-200) and median 40 pg/m3 (range 2-14000) OTA, respectively (p<0.001). Agricultural practices could not predict OTA, Penicillium or Aspergillus contamination. Compared to oral intake of OTA, the inhalant exposure during grain work was low, although varying by more than 1,000-fold. However, the farmers may occasionally be highly exposed, particularly during handling of stored grain.
Wydawca
-
Rocznik
Tom
11
Numer
2
Opis fizyczny
p.245-254,fig.,ref.
Twórcy
  • National Institute of Occupational Health, PO Box 8149, N-0033 Oslo, Norway
autor
autor
autor
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Typ dokumentu
Bibliografia
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Identyfikator YADDA
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