Assessment of arsenic and heavy metal concentrations in water and sediments of the Rio Grande at El Paso–Juarez metroplex region

Ríos-Arana, Judith V.; Walsh, Elizabeth J.; Gardea‐Torresdey, Jorge L.

doi:10.1016/s0160-4120(03)00080-1

Cited by 51 publications

(29 citation statements)

References 3 publications

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“…Conforme Rios-Arana et al (2004), diversos pesquisadores têm voltado o seu interesse para a quantificação de poluição por metais pesados em bacias hidrográficas, associando dados sobre o impacto ambiental e suas complexas relações com as atividades econômicas, ao determinar os níveis de metais pesados e identificar possíveis fontes de poluição, bem como ao atribuir tendências nas mudanças de comportamento na estruturação industrial e na implementação de tecnologias de controle da poluição, haja vista que a distribuição desses constituintes na coluna de água é influenciada por fenômenos físico-químicos como complexação, adsorção, dessorção, precipitação e redissolução (Stumm & Morgan 1996), pois dependendo das condições do ambiente (pH, Eh e teor de matéria orgânica) podem estar disponíveis se associados ao material particulado e, ainda, serem transportados para outros ambientes (Pinto et al 2009).…”

Section: Introductionunclassified

Caracterização de metais pesados das águas superficiais da bacia do Rio Subaé (Bahia)

Santos

Jesus

2014

Geochim. Bras.

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ResumoDevido à localização estratégica em relação às rodovias federais e estaduais e aos incentivos fiscais, o município de Feira de Santana, na Bahia, sempre atraiu indústrias, tornando-se importante polo industrial. Instalado na região de nascente até a foz da bacia do rio Subaé, ele conta com um ramo diversificado de indústrias (alimentícias, agroindustriais, celulose, ração, metalúrgicas, entre outras), além do adensamento populacional no entorno dessas instalações, e de pequenas e médias propriedades rurais. A presente pesquisa quantificou os metais pesados totais: Cd, Cr, Cu, Ni, Mn, Pb e Zn nas águas superficiais ao longo do curso do rio Subaé em período de estiagem e analisou a correlação das concentrações encontradas de cada metal pesado com os parâmetros físico-químicos da água. Foram realizadas 3 amostragens em 13 Pontos de monitoramento, definidos em função do uso e ocupação do solo. Os resultados indicam o comprometimento da qualidade da água do rio Subaé -particularmente no alto curso, área urbana de Feira de Santanaprincipalmente pelas altas concentrações de Cu, Mn, Pb e Zn, oriundas provavelmente de atividades industriais, as quais se apresentam acima dos limites estabelecidos pelas resoluções do Conselho Nacional de Meio Ambiente 357/05 (Classe 2), que trata das águas superficiais. Palavras-chave: qualidade de água, rio Subaé, metais pesados. (food, agribusiness, pulp, food, metallurgical and others), beyond the population density around these facilities and small and medium farms. This research quantified the total heavy metals: Cd, Cr, Cu, Ni, Mn, Pb and Zn in Abstract Due to its strategic location in relation to federal and state highways, and tax incentives, the city of Feira de Santana, in Bahia, attracted industries making it important industrial center. This pole is installed in the region of the source to the mouth of the river basin and Subaé has a diversified industrial sector

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Section: Introductionunclassified

Caracterização de metais pesados das águas superficiais da bacia do Rio Subaé (Bahia)

Santos

Jesus

2014

Geochim. Bras.

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“…The highest As concentration exceeded the highest levels in some studies from literature for either ground or river water;14.4 µg l -1 (Tamasi & Cini, 2004), 22 µg l -1 (Rios-Arana et al, 2003), 13.8 µg l -1 (Naicker et al, 2003), 21 µg l -1 (Miller et al, 2004), 49.3 µg l -1 (Meza et al, 2004) and 64 µg l -1 (Smedley, 1996) but were much less than concentrations observed in regions, where chronic health problems related to As, have been detected; < 0.01 -2.5 mg l -1 (Anawar et al, 2002), < 1 -535 µg l -1 (Watanabe et al, 2001), 3.05 µg l -1 (Berg et al, 2001) and 1,654 µg l -1 (Chakraborti et al, 2003). In the present study, relatively high As concentrations in the river waters may reflect the oxidation/weathering of arsenopyrite and, probably, other sulphide-bearing mine tailings.…”

Section: Concentration (µG ℓ -1 )mentioning

confidence: 78%

Evaluation of urinary arsenic as an indicator of exposure to residents of Tarkwa, Ghana

Asante¹,

Agusa²,

Kubota³

et al. 2009

West African Journal of Applied Ecology

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In Ghana, mining plays a significant role in the economic recovery programme. However, the gains are achieved at the cost of environmental and human health. For many years, the extraction of gold involved roasting which released airborne particles and large quantities of arsenic (As). Sampling for this study was conducted in March 2004 to assess the contamination status of trace elements, especially As, in water and mine workers in Tarkwa, which has nearly a century of gold mining history. Water and human urine samples were collected from Tarkwa, in addition to control samples taken from Accra, the capital of Ghana. Arsenic excretion was assessed in the first morning void urine. Concentrations of As and Mn in some water samples from Tarkwa were above the WHO drinking water guidelines. A potential health risk of As and Mn is a concern for the people consuming the contaminated water in this area. Levels of trace elements in water from control site were low compared to levels from Tarkwa. The mean urinary As concentration of 260 µgl -1 from the study area was comparable to those in Asendemic areas of the world. This indicates relatively high degree of human exposure to As in Tarkwa, Ghana. Relatively low levels of As in water and no significant difference of As concentrations in urine between Tarkwa and Accra may suggest the presence of other sources of As contamination in Ghana, possibly food. This is the first study reporting 23 trace elements in human urine samples from a mining town in Ghana.

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“…At pH 8.0, most elements are precipitated in the sediment as metal hydroxides, as discussed by Rios-Arana et al [13]. Due to seasonal variations in pH, further study is recommended regarding the trace element levels in the sediments of the sampling wells for a one year period to obtain more accurate information about the changes in the trace element concentrations.…”

Section: Resultsmentioning

confidence: 97%

Trace Element Levels in the Groundwater of Mediterranean Coastal Plains – The Case of Silifke, Turkey

Yılmaz

Seçkin

Sarı

2010

CLEAN Soil Air Water

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The Silifke plain is located near the coast of the Mediterranean Sea in Turkey. The delta in the plain is a highly fertile land that supports the agriculture of more than twenty types of crop. Some trace element content of the groundwater samples taken from the existing wells in this area are analyzed using inductively coupled plasma optical emission spectrometry (ICP‐OES). The mean levels (ppm) of boron (B), barium (Ba), iron (Fe), manganese (Mn), lead (Pb), zinc (Zn), total chromium (TCr), cadmium (Cd), copper (Cu), aluminum (Al), and nickel (Ni) were obtained for the sampling points in the area for four seasons. Groundwater samples taken in the study area don't exhibit significantly elevated levels of these elements during a period of twelve months between December 2007 and November 2008. Furthermore, all of the elements exhibit values lower than 0.005 ppm, with the exception of B, Ba, and Fe. The results demonstrate that although these three elements produce the highest values, most are found to be appropriate for activities such as irrigation and human consumption in terms of trace elements.

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Assessment of arsenic and heavy metal concentrations in water and sediments of the Rio Grande at El Paso–Juarez metroplex region

Cited by 51 publications

References 3 publications

Caracterização de metais pesados das águas superficiais da bacia do Rio Subaé (Bahia)

Caracterização de metais pesados das águas superficiais da bacia do Rio Subaé (Bahia)

Evaluation of urinary arsenic as an indicator of exposure to residents of Tarkwa, Ghana

Trace Element Levels in the Groundwater of Mediterranean Coastal Plains – The Case of Silifke, Turkey

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