Non-Cancer Health Risk Assessment from Lead and Cadmium Contamination in Rice Near the Municipal Waste Dumping Site in Ongkharak District, Nakhon Nayok Province
Keywords:
health risk, lead, cadmium, open dumpAbstract
This research aimed to study the amount of lead and cadmium contamination in rice fields near the waste dumping site in Ongkharak District, Nakhon Nayok Province. It was found that the level of lead in the soil was 0.178-0.253 mg/kg and cadmium was 2.326-3.314 mg/kg, which did not exceed the standard criteria according to the announcement of the National Environment Board on the determination of soil quality standards B.E. 2564. The level of lead and cadmium contamination in rice grains, they were 0.010-0.060 mg/kg and 0.433-0.791 mg/kg, respectively. The level of lead in all rice grain samples did not exceed the standard of the Ministry of Public Health Announcement (No. 414) B.E. 2563, but the level of cadmium in some samples was found to exceed the standard. The result of non-cancer health risk from oral intake from rice consumption by considering the HQ value, the results found that the HQ value of Pb was 0.01-0.06 in children and 0.01-0.04 in adults, which Indicates no significant health risk (HQ<1). However, for the risk of cadmium intake from rice consumption in the sample group found to have cadmium exceeding the standard, it was found that the HQ value was 1.32-2.55 in children 0.98-2.07 in adults, indicating that cadmium intake from rice consumption may cause health effects and risks (HQ>1).
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