Non-Hodgkin's lymphoma and nitrate in drinking water

Ward, Mary H.; Mark, Steven D.; Cantor, Kenneth P.; Weisenburger, Dennis D.; Correa‐Villaseñor, Adolfo

doi:10.1136/jech.54.10.772a

Cited by 6 publications

(4 citation statements)

References 7 publications

(3 reference statements)

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“…We applied the parameterized multiple logistic regression models to predict the probability of exceeding two specified nitrate concentrations. We used a threshold of 10 mg nitrate-NL −1 (10 ppm) to represent the maximum contaminant standard set by the US Environmental Protection Agency (US EPA 2011) and a threshold of 4 mg nitrate-NL −1 (4 ppm) because exposure at or near to this level has been linked to birth defects and increased risks of some cancers (Weyer et al 2008, Ward et al 2000, Brender et al 2013. We tested the fully-specified model for evidence of spatial autocorrelation by plotting model residuals and estimating global Moran's I statistics in ArcGIS, but found no evidence for significant spatial autocorrelation (z = 1.51, p = 0.12).…”

Section: Model Form and Estimationmentioning

confidence: 99%

“…The US Environmental Protection Agency has set a maximum contaminant level (MCL) of 10 mg L −1 (10 ppm) nitrate-nitrogen due to concerns over the link between consumption of high levels of nitrate and methemoglobinemia or Blue Baby Syndrome (Spalding and Exner 1993). Exposure to levels of nitrate below the federal drinking water standard (2.5 to 5.5 mg L −1 nitrate-N) has also been associated with increased risks of some cancers, birth defects, and spontaneous abortions (Weyer et al 2008, Ward et al 2000, Ward et al 1996, Brender et al 2013.…”

Section: Introductionmentioning

confidence: 99%

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Land-use change and costs to rural households: a case study in groundwater nitrate contamination

Keeler

Polasky

2014

Environ. Res. Lett.

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Loss of grassland from conversion to agriculture threatens water quality and other valuable ecosystem services. Here we estimate how land-use change affects the probability of groundwater contamination by nitrate in private drinking water wells. We find that conversion of grassland to agriculture from 2007 to 2012 in Southeastern Minnesota is expected to increase the future number of wells exceeding 10 ppm nitrate-nitrogen by 45% (from 888 to 1292 wells). We link outputs of the groundwater well contamination model to cost estimates for well remediation, well replacement, and avoidance behaviors to estimate the potential economic value lost due to nitrate contamination from observed land-use change. We estimate $0.7-12 million in costs (present values over a 20 year horizon) to address the increased risk of nitrate contamination of private wells. Our study demonstrates how biophysical models and economic valuation can be integrated to estimate the welfare consequences of land-use change.

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Section: Model Form and Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Land-use change and costs to rural households: a case study in groundwater nitrate contamination

Keeler

Polasky

2014

Environ. Res. Lett.

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“…Vale observar que um dos parâmetros mais citados pelos laboratórios para garantir a confiabilidade dos resultados de medição foi o nitrato. Sua determinação na água indica a contaminação antropogênica do meio ambiente e tem causado grande interesse na saúde pública pelos estudos epidemiológicos, com evidências da incidência de meta-hemoglobinemia e de vários tipos de câncer associados à presença de nitrato na água de consumo humano [19][20][21][22][23] . Isso demonstra a importância do monitoramento da qualidade da água consumida pela população e, mais ainda, a necessidade de resultados representativos (com rastreabilidade metrológica) para que ações de vigilância tenham a segurança requerida.…”

Section: Resultsunclassified

Desafios dos laboratórios públicos da área de saúde ambiental para implantação e manutenção dos requisitos de normativas da qualidade para monitoramento da água de consumo humano

Rodrigues

Borges

et al. 2022

Cad. saúde colet.

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Resumo Introdução O Ministério da Saúde (MS) é responsável pela vigilância da qualidade da água de consumo humano. A confiabilidade nos resultados do monitoramento de parâmetros analíticos minimiza riscos à saúde pública. Objetivo Retratar aspectos funcionais, a aplicação de ferramentas da qualidade e a aderência dos laboratórios públicos que atuam no monitoramento da água de consumo humano aos requisitos da norma ABNT NBR ISO/IEC 17025. Método A pesquisa foi realizada com 30 laboratórios públicos de todas as regiões do país, respondendo a um questionário elaborado com 49 perguntas sobre a formação e capacidade dos profissionais, garantia da validade dos resultados e sobre a determinação de parâmetros da qualidade da água. Resultados Dos 161 profissionais, 46% possuem mais de 10 anos de experiência e 65% têm formação superior. Capacitações específicas foram requeridas por todos. A validação dos métodos analíticos não foi realizada por 59%. Materiais de referência certificados são acessados por 41% e apenas 18% têm facilidade em adquiri-los. A participação em ensaios de proficiência foi reportada por 68% dos laboratórios, mas com poucos parâmetros avaliados e dificuldades em contratar provedores. Conclusão Evidenciou-se a necessidade de ações para fortalecimento da metrologia em laboratórios públicos que atuam na vigilância da qualidade da água.

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“…The impact of agricultural practices on nitrate contamination of surface and underground waters has been studied in many parts of the world (Patni et Water with nitrate levels above 10 mg L − 1 can cause health problems to humans, which include methemoglobinemia or the "Blue Baby Syndrome" (Bryson et al, 1989;Sasson, 1993), different types of cancer (Mirvish et al, 1987;Weisemburger, 1991;Ward et al, 2000;Weyer et al, 2001;Gulis et al, 2002), hyperthyroidism (Seffner, 1995), an increase of insulin-dependent people (Kostraba et al, 1992), deformation of children's central nervous system (Scragg et al, 1982;Arbuckle et al, 1988), and de ciencies in babies' neural tubes (Croen et al, 2001). Considering all studies to date, the strongest evidence for a relationship between drinking water nitrate ingestion and adverse health outcomes (besides methemoglobinemia) is for colorectal cancer, thyroid disease, and neural tube defects.…”

Section: Introductionmentioning

confidence: 99%

Nitrate leaching in Argiudoll soil under maize with different doses of fertilizer

Zamora¹,

Aparicio²,

Cerdà

et al. 2022

Preprint

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Nitrogen induced an increase in agriculture production and contributed to the growth of the world population. However, the overuse of nitrogen resulted in the pollution of water resources. The expansion of agriculture in Argentina is a good example of the abuse of nitrogen fertilization, but little is known about the damage induced in water quality. The objectives of this study were to (i) Adjust and validate the LEACH-W model simulations with data observed in the field, (ii) quantify nitrate concentrations in the drainage water, (iii) quantify N leaching from a corn-cropped soil, (iv) calculate a simplified soil-plant N balance. Treatments consisted of 0, 100 and 200 kg N ha-1 applied at planting in a RCBD with 4 replications. Ceramic suction cups, and the LEACH-W model were used to measure and model nitrate leaching, respectively. Nitrate leaching was related to drainage events, and nitrate levels in drainage water surpassed 10 mg L-1 of NO3--N in the fertilized treatments. Nitrate leaching was enhanced by the presence of high residual soil nitrate levels. Losses from the fertilized treatments represented 27 and 17% of the applied N for the 100 and 200 kg N ha rates, respectively. Nitrogen fertilization of maize is a threat of contamination of groundwater in the SE region of Buenos Aires, despite the fact that the doses of nitrogen fertilizer are lower than those used in other parts of the world.

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Non-Hodgkin's lymphoma and nitrate in drinking water

Cited by 6 publications

References 7 publications

Land-use change and costs to rural households: a case study in groundwater nitrate contamination

Land-use change and costs to rural households: a case study in groundwater nitrate contamination

Desafios dos laboratórios públicos da área de saúde ambiental para implantação e manutenção dos requisitos de normativas da qualidade para monitoramento da água de consumo humano

Nitrate leaching in Argiudoll soil under maize with different doses of fertilizer

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