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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Colín-Torres, Carlos G. Murillo-Jiménez, Janette M. Del Razo, Luz M. Sánchez-Peña, Luz C. Becerra-Rueda, Oscar F. Marmolejo-Rodríguez, Ana J. |
| Spatial Coverage | Mexico |
| Description | Country affiliation: Mexico Author Affiliation: Colín-Torres CG ( Secretaría de Salud, Hospital Juan María de Salvatierra, Blvd. Paseo de los Deportistas 5115, 23085, La Paz, BCS, Mexico.) |
| Abstract | Gold has been mined at San Antonio-El Triunfo, (Baja California Sur, Mexico) since the 18th century. This area has approximately 5,700 inhabitants living in the San Juan de Los Planes and El Carrizal hydrographic basins, close to more than 100 abandoned mining sites containing tailings contaminated with potentially toxic elements such as arsenic. To evaluate the arsenic exposure of humans living in the surrounding areas, urinary arsenic species, such as inorganic arsenic (iAs) and the metabolites mono-methylated (MMA) and di-methylated arsenic acids (DMA), were evaluated in 275 residents (18-84 years of age). Arsenic species in urine were analyzed by hydride generation-cryotrapping-atomic absorption spectrometry, which excludes the non-toxic forms of arsenic such as those found in seafood. Urinary samples contained a total arsenic concentration (sum of arsenical species) which ranged from 1.3 to 398.7 ng mL(-1), indicating 33% of the inhabitants exceeded the biological exposition index (BEI = 35 ng mL(-1)), the permissible limit for occupational exposure. The mean relative urinary arsenic species were 9, 11 and 80% for iAs, MMA and DMA, respectively, in the Los Planes basin, and 17, 10 and 73%, respectively, in the El Carrizal basin. These data indicated that environmental intervention is required to address potential health issues in this area. |
| File Format | HTM / HTML |
| ISSN | 02694042 |
| Issue Number | 5 |
| Volume Number | 36 |
| e-ISSN | 15732983 |
| Journal | Environmental Geochemistry and Health |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2014-10-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Health Arsenic Urine Environmental Exposure Statistics & Numerical Data Environmental Pollutants Adolescent Adult Aged Aged, 80 And Over Analysis Female Gold Humans Male Mexico Epidemiology Middle Aged Mining Spectrophotometry, Atomic Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Medicine Geochemistry and Petrology Environmental Engineering Water Science and Technology |
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