Non-carcinogenic health risks of heavy metal in mudfish from Laguna Lake
Non-carcinogenic health risks of heavy metal in mudfish from Laguna Lake
复制标题
拉古纳湖泥鱼中重金属的非致癌健康风险
作者：
Victorio B. Molina
本文探讨了重金属在拉古纳湖泥鳅体内的生物积累对人体健康的潜在风险。在旱季和雨季，在湖泊三个主要区域的八个采样站采集了鱼类样本。2010年5月至6月采集了旱季样本，2010年9月至11月采集了雨季样本。使用全球定位系统记录取样点位置的坐标，并绘制在地理信息系统数字地图上。使用原子吸收分光光度计（AAS）和汞分析仪（Mercur-Duo）对镉（Cd）、铅（Pb）、汞（Hg）、砷（As）和铬（Cr）进行重金属分析。根据非致癌影响，总结了与食用泥鱼相关的健康风险估计。五种重金属的非致癌危害商数（NHQ）值表明，铅是最紧迫的污染物，从与湖中所有采样点的泥鳅消费相关的风险中对健康产生不利影响。从保护人类健康和预防疾病的角度来看，拉古纳湖的泥鳅不适合人类长期食用，主要是由于铅和汞污染。关键词：生物累积，健康风险评估，重金属，拉古纳湖，泥鳅
This paper examines the potential risks to human health associated with exposure to heavy metal that have bioaccumulated in Mudfish (Ophicephalus striatus) from Laguna Lake. Fish samples were collected in eight sampling stations in three major areas of the lake during the dry and wet seasons. Dry season samples were collected from May to June 2010 and wet season samples, from September to November 2010. Coordinates of sampling site locations were recorded using Global Positioning System (GPS) and plotted in Geographic Information System (GIS) digital maps. Heavy metal analyses for cadmium (Cd), lead (Pb), mercury (Hg), arsenic (As), and chromium (Cr) were conducted using Atomic Absorption Spectrophotometer (AAS) and a Mercury Analyzer (Mercur-Duo). Estimates of health risks associated with mudfish consumption were summarized according to non-carcinogenic effects. Non-carcinogenic Hazard Quotient (NHQ) values of five heavy metal showed that lead is the most urgent pollutant of concern in terms of adverse health effects from risks associated with mudfish consumption from all sampling locations in the lake. From the point of view of human health protection and disease prevention, mudfish from Laguna Lake is not fit for long-term human consumption primarily due to lead and mercury contamination. Keywords: Bioaccumulation, health risk assessment, heavy metal, Laguna Lake, mudfish