Exposure to carcinogenic PAHs for the vendors of broiled food - the best charcoal bbq grill

Three popular suppliers including meat and non-meatmeat food (e.G, fish balls), supplier group (I), rice sausage sandwich supplier group (II) and roasted cornthe-The study selected the cob supplier Group (III) from Taiwan Night Market ).Average concentration of carcinogenic multi-ring aromatic hydrocarbons (car-There are 2445ng/m3. the supplier (II) is 2276ng/m3. the supplier (III) is 133ng/m3.The supplier group (I) and (II) exposed the benzene (a) pyrene (BaP )-The equivalent dose (BaPeq) is about 16 times and 13 times higher than the supplier Group (III.The supplier group (II) and (II) exposed BaPeq doses per day for the duration of the work were 2, respectively.80 and 2.28 μg/day.Employees from five offices on campus were selected as control groups.The doses of the supplier group (II) and (II) daily exposure to BaPeq during working hours were approximately 22 and 18 times, respectively, higher than those of the control group.This exposure dose of the Supplier Group (III) (0.18 μg/day) is equivalent to the dose of the control group (0.13u2009μg/day).The whole-Daily exposure dose of T-PAHs, car-The aromatics, BaP and BaPeq of the supplier group (I) and (II) are very close during the day-to-day working hours.However, the supplier Group (III) exposed BaPeq doses per day during working hours accounted for only 62% of the total groupDaily exposure dose.Multi-ring aromatic hydrocarbons are semi-volatile organic compounds produced by incomplete combustion of organic materials.As we all know, many of them have the role of cancer and mutation.Previous studies have shown that high exposure to these toxic compounds is associated with several cancers such as lung cancer and pancreatic cancer (;).It was found that the high death rate of lung cancer in Xuanwei, China was related to residents' lifetime exposure to smoke generated by charcoal use in China.It is further shown that the concentration level of aromatic hydrocarbons in smoked charcoal samples is about 1 to 2 orders of magnitude higher than that in non-smoking charcoal samples, and its components have a high mutation activity.Since then, cooking food with charcoal as fuel has attracted great attention.Before cooking, PCBs may be formed during the curing and processing of raw food.Additional hydrocarbons may be produced during cooking.Previous literature has shown that there is a high level of cyclic Twelve Hydrocarbons in charcoal-burned meat, smoked fish and fried foods (;).It is further shown that using a natural gas flame, 10 hydrocarbons can be obtained from the smoke generated by the meat barbecue.Since charcoal burning may produce a large number of PCBs, the use of charcoal as a fuel source for barbecue food should make a significant contribution to the concentration of PCBs in urban air.It is estimated that during the period from June to August, the emissions of PCBs from charcoal barbecues in Sweden were about 2 kilograms ().However, due to the inconvenience of sampling and the limitations of analysis, there are fewer reports of personal exposure to charcoal barbecues.In Taiwan, many people like to grill their food with charcoal.In addition, in the process, people who tend to cook are very close to the smoke emitted.It is important to evaluate pm2.5 exposure levels during the charcoal barbecue process.Our recent study using a personal air sampler to collect samples of PAH has shown that people's exposure doses are around 22 at cooking parties.5 times higher than the control group students who did not have any specific pm2.5 source on campus ().There are many professional vendors in Taichung City, Taiwan, who grill their food with charcoal and sell it at night markets.Generally, the barbecue exhaust is poorly ventilated or not ventilated.Personal respiratory protection devices may not be found at the night market vending point.In this environment, suppliers have easy access to a large number of hydrocarbons.However, no regulations have been put in place to protect their health or the environment.The aim of this study was to measure the exposure concentrations of total multi-cyclic hydrocarbons and carcinogenic multi-cyclic hydrocarbons from three popular suppliers.Exposure to total multi-ring and carcinogenic multi-ring and multi-ring (car-Aromatic hydrocarbons), benzrene (BaP) and BaPThe equivalent dose (BaP) of the supplier group was estimated and the occupational cancer risk of the three groups was assessed in this study.In addition, exposure concentrations and daily exposure doses of local university campus staff were investigated for comparison.