A study of heavy metal pollution in the Tinto-Odiel estuary in southwestern Spain using factor analysis

Grande, J. A.; Borrego, J.; González, Juan Antonio Morales

doi:10.1007/s002549900080

Cited by 96 publications

(59 citation statements)

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“…This phenomenon indicated that the most important sources of these metals could be the riverine and estuarine discharge, or the anthropogenic sources in the upstream. The decrease in metals concentration is probably the result of the dilution by seawater (Norton et al 1984) or the precipitation of metals in the tidal area with higher pH (Grande et al 1999). Positive loadings on temperature, conductivity, TDS, total Pb, and total Zn; and negative loading of FC were observed in the PCA.…”

Section: Principal Component Analysismentioning

confidence: 93%

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

et al. 2014

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The concentrations of nutrients (nitrogen and phosphorus), total metals, and fecal coliform (FC) coupling with chlorophyll-a (chl-a), 5-day biochemical oxygen demand (BOD 5 ) and other general environmental parameters were evaluated at the sub-surface and near-bottom water columns of 13 stations in the Sibu Laut River during low and high slack waters. The results indicated that inorganic nitrogen (mainly nitrate) was the primary form of nitrogen whereas organic phosphorus was the major form of phosphorus. The abundance of total heavy metals in Sibu Laut River and its tributaries was in the order of Pb \ Cu \ Zn \ Cd. Fecal coliform concentration was relatively low along Sibu Laut River. The shrimp farm effluents contributed a substantial amount of chl-a, BOD 5 , nutrients, and FC to the receiving creek except for total metals. Nevertheless, the influence was merely noticeable in the intake creek and amended rapidly along Selang Sibu River and brought minimal effects on the Sibu Laut River. Besides, the domestic sewage effluents from villages nearby also contributed a substantial amount of pollutants.

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Section: Principal Component Analysismentioning

confidence: 93%

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

et al. 2014

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“…This problem has been largely described by different authors (Borrego 1992;Elbaz-Poulichet et al 1999; Sá inz 1999; Davis et al 2000;Grande et al 2000Grande et al , 2003aGrande et al ,b, 2005aGrande et al ,b, 2009Leblanc et al 2000;Borrego et al 2002;Sá inz et al 2002Sá inz et al , 2003aSá inz et al ,b, 2004Ferná ndez-Remolar et al 2003 Water pollution from mining, which arrived in the Cobica watercourse coming from the Chorrito stream, is produced by mine underground water, waste dump leachate and general washout of all pyrite waste dispersed through the numerous mining operations (Grande et al 2005a). …”

Section: Location and Description Of The Study Areamentioning

confidence: 99%

Model of behaviour of conductivity versus pH in acid mine drainage water, based on fuzzy logic and data mining techniques

Jiménez

Aroba

Torre

et al. 2009

Journal of Hydroinformatics

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Acid Mine Drainage is a water pollution type characterized by several topics such as high acidity, sulfate and heavy metal concentrations. One of the chemical characteristics is the absence of correlation between pH and conductivity, as could be expected. This last parameter is well correlated with other variables such as sulfate concentration and can be used as a field assessment. The absence of pH/conductivity correlation is largely discussed by several authors. In this work, the use of fuzzy logic algorithms in a large temporal database (over 20,000 records) has allowed us to study the "hidden" relation between them. This work finds this correlation, with some conditions such as the range of pH where it happens. Maybe the study of the usual range of pH values in previous studies has disturbed the correlation because of other chemical processes.

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“…(Leblanc et al, 2000). The natural alteration of these sulfide masses, together with the mining activity, has caused the secular pollution of the Tinto and Odiel Rivers, whose waters have high concentrations of heavy metals and extremely low (less than 3) pH values (Grande et al, 2000).…”

Section: Regional Settingmentioning

confidence: 99%

“…1). This industrial activity produces a large volume of effluents, such as phosphogypsum deposits, which find their way into the waters of the estuary and contribute to the already large quantities of heavy metals and nutrients that make this estuarine system one of the most polluted in Western Europe (Ruiz et al, 1998;Grande et al, 2000;Borrego et al, 2002). como resultado de la mezcla de agua ácida fluvial procedente de cuencas de drenaje afectadas por drenaje ácido de mina (AMD).…”

Section: Regional Settingmentioning

confidence: 99%

Impacto del drenaje ácido de mina en las características hidrogeoquímicas del estuario de los ríos Tinto y Odiel (SO España)

et al. 2011

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Impacto del drenaje ácido de mina en las características hidrogeoquímicas del estuario de los ríos Tinto y Odiel (SO España) Abstract pH and chlorinity content of estuarine water and behavior in the concentration of some heavy metals characteristics of acid mine drainage in the suspended matter and dissolved phase have allowed the identification of two mixing process in the Odiel-Tinto rivers estuary: a salt-induced mixing typical of marine estuaries and an acid neutralization process as a result of the mixture of acid fluvial water coming from the drainage basins, which are affected by acid mine drainage (AMD). Thus, the estuary is divided into three zones: (1) zone with acid water and with precipitation of sulphate phases during the beginning of the process of neutralization in the absence of salt-induced mixing, (2) zone with pH values between 4.5 and 7 where a removal of heavy metals in their dissolved phase is produced by coexistence of both mixture processes, and (3) zone where water is slightly basic and the salt-induced mixing produces a redissolution of some elements. Spatial location and extent of these zones within the estuarine system have seasonal variations depending on the volume of fluvial discharge.Keywords: Acid mine drainage, Acid and saline mixing, Tinto-Odiel estuary, hydrogeochemistry ResumenEl contenido de pH y clorinidad de las aguas de estuario y el comportamiento en la concentración de algunos metales pesados característicos del drenaje ácido de mina en la materia suspendida y en la fase disuelta ha permitido la identificación de dos procesos de mezcla en el estuario de los ríos Tinto y Odiel: una mezcla sal inducida típica de estuarios marinos y procesos de neutralización ISSN (print): 1698-6180. ISSN (online): 1886-7995

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A study of heavy metal pollution in the Tinto-Odiel estuary in southwestern Spain using factor analysis

Cited by 96 publications

References 0 publications

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia

Model of behaviour of conductivity versus pH in acid mine drainage water, based on fuzzy logic and data mining techniques

Impacto del drenaje ácido de mina en las características hidrogeoquímicas del estuario de los ríos Tinto y Odiel (SO España)

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