Heavy metals in industrial areas threaten local resident health through multiple routes, in particular the contaminated food. Traditional glutinous rice wine (GRW) is a popular drink in China. However, the toxic metal pollution status of GRW remains unclear. In this study, we aimed to compare intake level and the effects of GRW on health risk among residents between industrial area and commercial area in the central of China. The results indicated the mean concentrations of lead (Pb), cadmium (Cd) and arsenic (As) of all GRW samples in industrial area were 0.78, 0.13 and 0.09 mg/L which had exceeded both of Chinese glutinous rice wine detection standard (DB46/T 120-2008) and National standard of Food safety (GB2762-2017), whereas the lead (Pb), cadmium (Cd) and arsenic (As)concentrations were normal in the commercial area. Health risk assessment showed industrial area had a higher risk of non-cancer health diseases via intake of lead (Pb), Cd and As in the order: Cd > lead (Pb) > As. The total hazard index (HI) in industrial area was 4.580 whereas in commercial area the HI was 0.491, respectively. Further, in the industrial area, the cancer risk (CR) of lead (Pb) was 9.523 × 10 –6 and Cd was 6.53 × 10 –2 , whereas in commercial area, the CR of lead (Pb) was 1.286 × 10 –6 and Cd was 2.60 × 10 –3 . The principal components analysis (PCA) and cluster analysis further identified high concentration of lead (Pb), Cd and As in the industrial area is due to industrial-related activities. Our findings emphasize the importance of following consumer advice with respect to GRW and urgent action should be taken to reduce the detrimental health effects to the industrial residents.
Polycyclic aromatic hydrocarbons (PAHs) accumulated in agricultural soils are likely to threaten human health and ecosystem though the food chain, therefore, it is worth to pay more attention to soil contamination by PAHs. In this study, the presence, distribution and risk assessment of 16 priority PAHs in rice-wheat continuous cropping soils close to industrial parks of Suzhou were firstly investigated. The concentrations of the total PAHs ranged from 125.99 ng/g to 796.65 ng/g with an average of 352.94 ng/g. Phenanthrene (PHE), fluoranthene (FLT), benzo [a] anthracene (BaA) and pyrene (PYR) were the major PAHs in those soil samples. The highest level of PAHs was detected in the soils around Chemical plant and Steelworks, followed by Printed wire board, Electroplate Factory and Paper mill. The composition of PAHs in the soils around Chemical plant was dominated by 3-ring PAHs, however, the predominant compounds were 4, 5-ring PAHs in the soils around other four factories. Meanwhile, the concentration of the total PAHs in the soils close to the factories showed a higher level of PAHs in November (during rice harvest) than that in June (during wheat harvest). Different with other rings of PAHs, 3-ring PAHs in the soils around Chemical plant and Steelworks had a higher concentration in June. The results of principal component analysis and isomeric ratio analysis suggested that PAHs in the studied areas mainly originated from biomass, coal and petroleum combustion. The risk assessment indicated that higher carcinogenic risk was found in those sites closer to the industrial park.