The content of polycyclic aromatic hydrocarbons (PAH) in the work atmosphere of a coke plant was investigated on two occasions. Stationary, mobile, and personal sampling were used, and the samples were analyzed by glass capillary gas chromatography. Up to 39 PAH and heterocyclic compounds were identified in the samples. By personal sampling, the occupational exposure to PAH was determined to vary between 5 and 1,000 mg/m 3 . A study of the occurrence of PAH on particulate matter revealed that 98 % of the PAH was respirable. No significant variation in the relative distribution of the PAH components (PAH profile) was observed during the two sampling periods. The PAH profile for the coke plant was similar to that of a SOderberg aluminum plant, but different from that of a Soderberg paste plant.
The content of polycyclic aromatic hydrocarbons (PAH) in a Sederberg prebaked aluminum reduction plant and an anode plant was studied. Both stationary and personal sampling were used, and the samples were analyred by glass capillary galS chroma,tography. In many samples more than 30 PAH and heterocyclic compounds were identified. Comparison of tberesullts~rom Ithe different planJts revealed 1lha,t the atmospheric P AH content was signHiicantly higher in the Seder,berg plant than in the others. However, the relaillive dist,ribullion of PAH components (PAH profile) was relatively constant :in ,the prebaked and the anode lba1cing plant, ,and different in the Sederberg plan'1;. As a consequence of the va,riaiion [n the po11ullion 'level among the dUferent job caJtegories, personal sampling showed a broader -range of PAH concenrt;rations than the staillionary method.
urinary excretion of the herbicide 2-methyl-4-chlorophenoxyacetic acid. Scand. j. work environ. & health 3 (1977) 100-103. To see if urd.nary 2-methyl-4-chJomphenoxyacettc acid (MCPA) ,excret,ton could be used to estimate MCPA exposure, four healthy males ingested 5 mg MCPA. The MCPA in the urine was extracted and analyzed by high pressure liquid chromatography. About 50 % of the ingested dose was detected 1n the urine within 48 h.On .the fifith dayafiter inta~e the MCPA concentration a' ll the 'llmIlJe was below the level of detection, 0.2 pg/ml. The MCPA did not~ncrease those serum enzymes indicating liver cell damage (S-alan.i.ne~aminotra'IlJSjjerase, S-
Air pollution in Poland and particularly in Silesia is among the worst in Europe. Many coal mines and coke oven plants are located in this area, representing a major source of carcinogenic polycyclic aromatic hydrocarbons (PAHs). We quantitated the PAH exposure level in air samples using personal sampling devices, collected urine samples from the same individuals, and measured 1-hydroxypyrene with high performance liquid chromatography. Samples were collected twice, once in February and once in September. Mean PAH level of samples collected at three different coke oven plants varied from 2.3 micrograms/m3 to 12.3 micrograms/m3; the lowest mean was in September. Mean levels of 0.15 micrograms/m3 (September) and 0.44 micrograms/m3 (February) were noted for the environmentally exposed group. Mean urinary 1-hydroxypyrene varied from 2.45 to 13.48 mumol/mol creatinine at the three coke oven plants. The corresponding variation between the three different environmentally exposed groups in Silesia was 0.41-1.54 mumol/mol creatinine. In the nonindustrialized area, the mean varied from 0.20 to 0.14 mumol/mol creatinine. Seasonal variation was found both at the coke oven plants and in the environmental exposed groups in Silesia. Both PAH levels and 1-hydroxypyrene varied seasonally among coke oven workers and the environmentally exposed group. Our study shows that PAH exposure in the industrialized area of Silesia is high compared to levels in Western Europe. 1-Hydroxypyrene excretion in environmentally exposed individuals in Poland is among the highest in Europe.
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