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Relationship between localization of gold mining areas and hair mercury levels in people from Bolivar, north of Colombia.
Biol Trace Elem Res. 2011 Dec; 144(1-3):118-32.BT

Abstract

Mercury (Hg) is a heavy metal that, once in the environment, is bioaccumulated and biomagnified through food chain impacting ecosystems. The aim of this study was to evaluate total Hg (T-Hg) concentrations in individuals along Cauca and Magdalena Rivers in Colombia, where most gold mining activities take place. A total of 1,328 hair samples were collected and analyzed for T-Hg using atomic absorption spectroscopy. T-Hg concentrations ranged from 0.01 to 20.14 μg/g. Greatest levels were detected in La Raya (5.27 ± 0.32 μg/g), Achi (2.44 ± 0.22 μg/g), and Montecristo (2.20 ± 0.20 μg/g), places that are located near gold mines. Concentrations decreased with the distance from main mining areas. Only 0.75% of the individuals had T-Hg levels above 10 μg/g. Men had significantly higher T-Hg levels than women, and correlation analysis revealed moderately weak but significant relationships between T-Hg and weight (R = 0.111, P < 0.001), stature (R = 0.111, P < 0.001), and age (R = 0.073, P = 0.007). However, T-Hg concentrations did not vary according to fish consumption frequency. Subjective health survey showed no Hg-related signs or symptoms within studied sample. However, studies are necessary to detect neurological damage linked to the metal. Changing technologies to Hg-free mining, monitoring, and educational programs are necessary to protect health of people living near Colombian rivers.

Authors+Show Affiliations

Environmental and Computational Chemistry Group, Faculty of Pharmaceutical Sciences, University of Cartagena, Cartagena, Colombia. joliverov@unicartagena.edu.coNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21476008

Citation

Olivero-Verbel, Jesús, et al. "Relationship Between Localization of Gold Mining Areas and Hair Mercury Levels in People From Bolivar, North of Colombia." Biological Trace Element Research, vol. 144, no. 1-3, 2011, pp. 118-32.
Olivero-Verbel J, Caballero-Gallardo K, Marrugo Negrete J, et al. Relationship between localization of gold mining areas and hair mercury levels in people from Bolivar, north of Colombia. Biol Trace Elem Res. 2011;144(1-3):118-32.
Olivero-Verbel, J., Caballero-Gallardo, K., Marrugo Negrete, J., & Negrete-Marrugo, J. (2011). Relationship between localization of gold mining areas and hair mercury levels in people from Bolivar, north of Colombia. Biological Trace Element Research, 144(1-3), 118-32. https://doi.org/10.1007/s12011-011-9046-5
Olivero-Verbel J, et al. Relationship Between Localization of Gold Mining Areas and Hair Mercury Levels in People From Bolivar, North of Colombia. Biol Trace Elem Res. 2011;144(1-3):118-32. PubMed PMID: 21476008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship between localization of gold mining areas and hair mercury levels in people from Bolivar, north of Colombia. AU - Olivero-Verbel,Jesús, AU - Caballero-Gallardo,Karina, AU - Marrugo Negrete,Jose, AU - Negrete-Marrugo,José, Y1 - 2011/04/08/ PY - 2011/01/31/received PY - 2011/03/21/accepted PY - 2011/4/9/entrez PY - 2011/4/9/pubmed PY - 2012/4/28/medline SP - 118 EP - 32 JF - Biological trace element research JO - Biol Trace Elem Res VL - 144 IS - 1-3 N2 - Mercury (Hg) is a heavy metal that, once in the environment, is bioaccumulated and biomagnified through food chain impacting ecosystems. The aim of this study was to evaluate total Hg (T-Hg) concentrations in individuals along Cauca and Magdalena Rivers in Colombia, where most gold mining activities take place. A total of 1,328 hair samples were collected and analyzed for T-Hg using atomic absorption spectroscopy. T-Hg concentrations ranged from 0.01 to 20.14 μg/g. Greatest levels were detected in La Raya (5.27 ± 0.32 μg/g), Achi (2.44 ± 0.22 μg/g), and Montecristo (2.20 ± 0.20 μg/g), places that are located near gold mines. Concentrations decreased with the distance from main mining areas. Only 0.75% of the individuals had T-Hg levels above 10 μg/g. Men had significantly higher T-Hg levels than women, and correlation analysis revealed moderately weak but significant relationships between T-Hg and weight (R = 0.111, P < 0.001), stature (R = 0.111, P < 0.001), and age (R = 0.073, P = 0.007). However, T-Hg concentrations did not vary according to fish consumption frequency. Subjective health survey showed no Hg-related signs or symptoms within studied sample. However, studies are necessary to detect neurological damage linked to the metal. Changing technologies to Hg-free mining, monitoring, and educational programs are necessary to protect health of people living near Colombian rivers. SN - 1559-0720 UR - https://www.unboundmedicine.com/medline/citation/21476008/Relationship_between_localization_of_gold_mining_areas_and_hair_mercury_levels_in_people_from_Bolivar_north_of_Colombia_ L2 - https://dx.doi.org/10.1007/s12011-011-9046-5 DB - PRIME DP - Unbound Medicine ER -