Human Health Risk of Some Heavy Metals in the Surface Soil of Arak Plain
محل انتشار: مجله آرشیو علوم بهداشتی، دوره: 12، شماره: 1
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 162
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شناسه ملی سند علمی:
JR_AHS-12-1_004
تاریخ نمایه سازی: 16 فروردین 1402
چکیده مقاله:
Background & Aims: Soil contamination with heavy metals is becoming a major environmental concern today. Therefore, the present study was conducted to evaluate the health risks of heavy metals in the surface soil of Arak plain.
Materials and Methods: Soil samples were collected by random sampling from ۳۰ stations with three replications from a depth of ۰-۲۰ cm. After acidic digestion of the samples (HNO۳: HclO۴: HF = ۳: ۲: ۱), the concentrations of lead (Pb), zinc (Zn), copper (Cu), nickel (Ni), and cadmium (Cd) were determined by atomic absorption spectrometry. Finally, the carcinogenic and non-carcinogenic hazards of heavy metals in surface soils for human health were assessed through ingestion, inhalation, and dermal absorption using the method recommended by the EPA for children and adults.
Results: The results indicated that the average total concentrations of heavy metals of Pb, Zn, Cu, Ni, and Cd in the study area are ۱۰.۰۱, ۱۳.۸۳, ۳۹.۸۲, ۴۳.۴۱, and ۱۱.۹ mg/kg, respectively. The highest and lowest average daily dose (ADD) of elements in both age groups were related to Ni metal from the ingestion route and Cd metal from the inhalation tract, respectively. Further, the non-carcinogenic risk hazard quotient (HQ) of heavy metals in all three paths was less than ۱. The results of the non-carcinogenic hazard index (HI) risk assessment of all three pathways separately for each metal and for both groups of children and adults showed metal values as Cu > Cd > Zn > Pb > Ni, respectively. In addition, the results of the carcinogenic risk index (RI) in the surface soil of Arak plain revealed that Ni and Pb have the highest and the lowest carcinogenic risk, respectively.
Conclusion: Finally, considering the size of the study area and proving the carcinogenic hazards and risks in the area, it is necessary and important to pay attention to health and environmental principles.
کلیدواژه ها:
Carcinogenicity tests ، Absorption ، Respiration ، Eating ، Metals ، Heavy ، Environmental pollution ، Soil ، Arak ، Iran
نویسندگان
فائزه صابری نسب
Environmental Department, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran
ثمر مرتضوی
دانشگاه ملایر
علیرضا ریاحی بختیاری
P.hD. Student of Environmental Science, Malayer University, Malayer, Iran
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