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PAPER SELECTED

Evaluation and occurrence of carcinogenic polycyclic aromatic hydrocarbons (PAHs) in animal feed factories

RASZYK J, ULRICH R, SALAVA J, PALAC J
Veterinarni Medicina 44, 1999, 295-300

Concentrations of 16 polycyclic aromatic hydrocarbons (U.S. EPA priority pollutants PAHs) were studied in sedimented dust (n = 30) collected by an electric vacuum cleaner in two animal feed factories in the district of Hodonin in 1995 and 1996. Dust particles below 0.7 mm were analysed. Seven of the studied PAHs are considered to be animal carcinogens (International Agency for Research on Cancer, 1983), namely benzo(a)anthracene (BaA), chrysene (Chry), benzo(b)fluoranthene(BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), dibenzo(a,h)anthracene (DBahA) and indeno(1,2,3-cd)pyrene (IcdP). The average sum of 16 PAHs for sedimented dust was 752 mu g/kg, the average sum of seven carcinogenic PAHs was 110 mu g/kg (14.6% of the total sum of 16 PAHs), and average BaP concentration was 11 mu g/kg (10% of the total sum of 7 carcinogenic PAHs). Of the carcinogenic PAHs chrysene (35.5 mu g/kg), benzo(a)anthracene (20.6 mu g/kg) and benzo(b)fluoranthene are prevalent in dust deposits. Of the other studied PAHs phenanthrene (198.5 mu g/kg), anthracene (104.8 mu g/kg) and pyrene are dominant. Significantly higher levels of the following five carcinogenic PAHs were found in animal feed factory K (n = 15) compared with animal feed factory R (n = 15): BaA (K 30.8 mu g/kg


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