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Occurrence of carcinogenic polycyclic aromatic hydrocarbons (PAH) on pig and cattle farms

RASZYK J, ULRICH R, GAJDUSKOVA V, SALAVA J, PALAC J
Veterinarni Medicina 43, 1998, 17-25

Concentrations of 16 polycyclic aromatic hydrocarbons (U.S. EPA priority pollutant PAHs) were studied in feedstuffs (n = 12), drinking water (n = 21), stable dust (n = 17), porcine liquid manure (n = 16), road dust (n = 14) and soil (n = 11) on three pig farms (D., M., T.) and two cattle farms (Na., Ne.) in Hodonin district in 1995 and 1996. Seven out of the studied PAHs are considered as 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 feedstuffs was 207.7 mu g/kg, the average sum of seven carcinogenic PAHs made 7.4 mu g/kg and average BaP concentration was lower than 0.1 mu g/kg. Sixteen PAH average sum for drinking water amounted to 51.6 ng/l, average sum of seven carcinogenic PAHs made 8,4 ng/l and average BaP concentration was 1.1 ng/l. The respective values for stable dust were 2 147.9 mu g/kg, 178.0 mu g/kg and 5.6 mu g/kg. The average sum of 16 PAHs for porcine liquid manure was 543.2 mu g/kg of dry matter, average sum of seven carcinogenic PAHs amounted to 47.0 mu g/kg of dry matter and average BaP concentration made 2.3 mu g/kg of dry matter. Sixteen PAH average sum for road dust amounted to 13 142.7 mu g/kg, average sum of seven carcinogenic PAH was 4 597.2 mu g/kg and average BaP concentration made 384.0 mu g/kg. The respective values for soil were 3 542.8 mu g/kg, 1 767.1 mu g/kg and 187.1 mu g/kg. Chrysene, benzo(a)anthracene and benzo(b)fluoranthene are dominant PAH carcinogens in the stable environment and in the environment on pig and cattle farms. Among the other PAHs, phenanthrene, fluoranthene and pyrene are dominant. A permanent goal of veterinary service is to seek additional sources and to reduce the penetration of carcinogenic PAHs into livestock herds. Data on carcinogenic PAH concentrations in the stable environment on pig and cattle farms collected within a pilot study can also be used by medical service (preventive and occupational medicine)


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