การประเมินความเสี่ยงต่อสุขภาพจากการบริโภคปลาที่มีการปนเปื้อนโลหะหนัก ใกล้แหล่งฝังกลบมูลฝอยเทศบาล
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บทคัดย่อ
การวิจัยครั้งนี้มีวัตถุประสงค์เพื่อประเมินความเสี่ยงด้านสุขภาพจากการบริโภคปลาที่ปนเปื้อนโลหะหนัก (สารหนู แคดเมียม โครเมียม ตะกั่ว นิกเกิล แมงกานีส สังกะสีและทองแดง) บริเวณรอบแหล่งฝังกลบมูลฝอยเทศบาล อำเภอธาตุพนม จังหวัดนครพนม และศึกษาปริมาณการปนเปื้อนของโลหะหนักในน้ำ และตัวอย่างปลา 5 ชนิด 30 ตัวอย่าง ได้แก่ ปลาช่อน ปลาซิว ปลากระสูบจุด ปลากด ปลากระดี่และปลาหมอ วิเคราะห์ปริมาณโลหะหนักในเนื้อปลาด้วยเครื่อง Inductively coupled plasma optical emission spectrometry (ICP-OES) ผลการศึกษาพบว่าปริมาณโลหะหนักทุกชนิดที่ปนเปื้อนในตัวอย่างน้ำมีค่าไม่เกินมาตรฐานยกเว้น สังกะสี และสารหนู ปริมาณโลหะหนักทุกชนิดที่ปนเปื้อนในปลาทุกชนิดค่าไม่เกินมาตรฐาน ยกเว้นโครเมียม ค่าประมาณการได้รับสัมผัสโลหะหนักสูงสุด (EDI) จากการบริโภคปลาได้แก่ สังกะสี>แมงกานีส>โครเมียม ซึ่งพบได้ในปลาทุกชนิด ค่าประมาณการได้รับสัมผัสโลหะหนักจากการบริโภคปลาทุกชนิดมีค่าไม่เกินปริมาณสูงสุดที่แนะนำให้บริโภคได้ต่อวัน การประเมินความเสี่ยงด้านสุขภาพจากการบริโภคปลาที่มีการปนเปื้อนโลหะหนักพบว่า โลหะหนักทุกชนิดค่า human risk index (HRI) ไม่เกิน 1 ในปลาทุกชนิด
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