Human health risk of methylmercury from fish consumption at the largest floodplain in Colombia

被引:31
作者
Marrugo-Negrete, Jose [1 ]
Vargas-Licona, Shirly [1 ]
Alonso Ruiz-Guzman, Javier [1 ]
Marrugo-Madrid, Siday [1 ,2 ]
Bravo, Andrea G. [2 ]
Diez, Sergi [2 ]
机构
[1] Univ Cordoba, Carrera 6 76-103, Cordoba, Colombia
[2] CSIC, Dept Environm Chem, Inst Environm Assessment & Water Res, IDAEA, E-08034 Barcelona, Spain
关键词
Gold mining; Contaminated fish; Estimated weekly intake; Public health; Vulnerable populations; Mojana region; Colombia; TRACE-ELEMENTS; HEAVY-METALS; MERCURY; WATER; OMEGA-3-FATTY-ACIDS; EXPOSURE;
D O I
10.1016/j.envres.2019.109050
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Colombia is one of the countries with the highest emissions of mercury (Hg) to the environment, due to its use in gold mining. This study evaluated the human health risk from exposure to Hg through fish consumption in 11 municipalities located in the Mojana region, northern Colombia. The study participants (n = 839) were categorized into three population groups: children (CHD), women of childbearing age (WCHA) and the rest of population (RP). Total Hg (THg) and methylmercury (MeHg) concentrations were evaluated in the top ten most consumed fish species (n = 292). Median concentrations (range: 0.22-0.58 mu g/g ww) of the five carnivorous fish species exceeded the reference limit established by FAO/WHO (0.2 mu g/g ww) for vulnerable populations. For 6 of the 10 studied fish species, the estimated weekly intake (EWI) in children was above the provisional tolerable weekly intake (PTWI, 1.6 mu g/kg bw/week) of MeHg established by JECFA. EWI values for WCHA were above PTWI in 4 fish species, whereas in general, for RP group values were below PTWI (3.2 mu g/kg bw/week). Our assessment of potential risks to MeHg exposure indicated that most of the consumed fish could generate negative effects in vulnerable groups, because according to ingestion rate, MeHg permissible is, in some cases, up to 4 times higher than reference limits. Consumption advisories should be a guidance to avoid risk, gain nutritional benefits, and sustain fish populations. Because its high MeHg levels as well as high ingestion, it is recommended that inhabitants of this region should stop eating certain kinds of fish and the whole fish as a single meal. To reduce its harmful intake, we have proposed a didactic strategy based on marbles that control the portion of fish they are eating.
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页数:8
相关论文
共 38 条
[1]   A Review of Mercury Bioavailability in Humans and Fish [J].
Bradley, Mark A. ;
Barst, Benjamin D. ;
Basu, Niladri .
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2017, 14 (02)
[2]  
Cardoso I., 2015, AGROECOLOGY FOOD SEC
[3]  
Cordeiro F., 2013, IMEP 115 DETERMINATI, DOI [10.2787/76278, DOI 10.2787/76278]
[4]  
Díez S, 2009, REV ENVIRON CONTAM T, V198, P111, DOI 10.1007/978-0-387-09647-6_3
[5]  
DNP, 2012, INT PLAN ENV ORD TER
[6]   Mercury as a Global Pollutant: Sources, Pathways, and Effects [J].
Driscoll, Charles T. ;
Mason, Robert P. ;
Chan, Hing Man ;
Jacob, Daniel J. ;
Pirrone, Nicola .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (10) :4967-4983
[7]  
El-Moselhy Kh.M., 2014, EGYPT J BAS APPL SCI, P97, DOI [DOI 10.1016/J.EJBAS.2014.06.001, 10.1016/j.ejbas.2014.06.001]
[8]  
ENSIN, 2010, NAT SURV NUTR SIT
[9]  
EPA, 1998, 7473 US EPA
[10]  
FAO, 2016, RES EST MUND PESC AC, P224