Arsenic in ground drinking water. The regional monitoring plan or Castilla y León (Spain)

García-Villanova, Rafael J.; Torrero, P. Rodríguez; Fonseca, I.; Paramás, Ana María González; Bárez, Juan Alfonso Gómez; Marcos, C. Cordón

doi:10.1051/water/20053602107

Cited by 3 publications

(2 citation statements)

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“…An alternative explanation for the described pattern would be the existence of some environmental exposure linked to the geologic characteristics of this region. Areas with highest gastric cancer mortality in the Autonomous Region of Castile & Leon basically coincide with the Tertiary Duero River Basin, an area in which elevated levels of certain contaminants have been detected, both in soils and in underground waters, principal among which is arsenic [ 41 - 44 ]. Most of the towns affected by this problem, essentially farming communities, rely on underground water for crop irrigation [ 41 , 45 ].…”

Section: Discussionmentioning

confidence: 99%

The striking geographical pattern of gastric cancer mortality in Spain: environmental hypotheses revisited

et al. 2009

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BackgroundGastric cancer is decreasing in most countries. While socioeconomic development is the main factor to which this decline has been attributed, enormous differences among countries and within regions are still observed, with the main contributing factors remaining elusive. This study describes the geographic distribution of gastric cancer mortality at a municipal level in Spain, from 1994-2003.MethodsSmoothed relative risks of stomach cancer mortality were obtained, using the Besag-York-Molliè autoregressive spatial model. Maps depicting relative risk (RR) estimates and posterior probabilities of RR being greater than 1 were plotted.ResultsFrom 1994-2003, 62184 gastric cancer deaths were registered in Spain (7 percent of all deaths due to malignant tumors). The geographic pattern was similar for both sexes. RRs displayed a south-north and coast-inland gradient, with lower risks being observed in Andalusia, the Mediterranean coastline, the Balearic and Canary Islands and the Cantabrian seaboard. The highest risk was concentrated along the west coast of Galicia, broad areas of the Castile & Leon Autonomous community, the province of Cáceres in Extremadura, Lleida and other areas of Catalonia.ConclusionIn Spain, risk of gastric cancer mortality displays a striking geographic distribution. With some differences, this persistent and unique pattern is similar across the sexes, suggesting the implication of environmental exposures from sources, such as diet or ground water, which could affect both sexes and delimited geographic areas. Also, the higher sex-ratios found in some areas with high risk of smoking-related cancer mortality in males support the role of tobacco in gastric cancer etiology.

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Section: Discussionmentioning

confidence: 99%

The striking geographical pattern of gastric cancer mortality in Spain: environmental hypotheses revisited

et al. 2009

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“…Arsenic has been detected in aquifers and soils in southern parts of the Spanish Autonomous Community of Castilla-León in central Spain, with levels of up to 50 μg l −1 in water and over 50 mg kg −1 in soil (García-Sánchez and Álvarez-Ayuso, 2003;García-Sánchez et al, 2005García-Villanova et al, 2005;Moyano et al, 2009;Sahún et al, 2004). In Bangladesh and Argentina, the presence of As in groundwater has been associated with the geochemical characteristics of soil parent material (Bhattacharya et al, 2007;Smedley and Kinniburgh, 2002).…”

Section: Introductionmentioning

confidence: 99%