Rice is a major exposure route for arsenic in Chakdaha block, Nadia district, West Bengal, India: A probabilistic risk assessment

Mondal, Debapriya; Polya, David A.

doi:10.1016/j.apgeochem.2008.06.025

Cited by 275 publications

(89 citation statements)

References 56 publications

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“…Rice consumption constitutes a major source of dietary intake of inorganic As and Cd for populations whose staple food is rice (Tsukahara et al, 2003; Mondal & Polya, 2008; Signes-Pastor et al, 2016). Li et al (2011) showed that rice contributes up to 50 and 60% of the total dietary inorganic As for the Bangladeshi and Chinese populations, respectively.…”

Section: Introductionmentioning

confidence: 99%

Genotypic and Environmental Variations in Grain Cadmium and Arsenic Concentrations Among a Panel of High Yielding Rice Cultivars

Duan

Shao

Tang

et al. 2017

Rice

131

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BackgroundRice is a major dietary source of cadmium (Cd) and arsenic (As) for populations consuming rice as the staple food. Excessive Cd and As accumulation in rice grain is of great concern worldwide, especially in South China where soil contamination with heavy metals and metalloids is widespread. It is important to reduce Cd and As accumulation in rice grain through selection and breeding of cultivars accumulating low levels of Cd or As.ResultsTo assess the genetic and environmental variations in the concentrations of Cd and As in rice grains, 471 locally adapted high-yielding rice cultivars were grown at three moderately contaminated sites in South China for two years. Cadmium and As concentrations in brown rice varied by 10 – 32 and 2.5 – 4 fold, respectively. Genotype (G), environment (E) and G x E interactions were highly significant factors explaining the variations. Brown rice Cd concentration was found to correlate positively with the heading date among different cultivars, whereas As concentration and heading date correlated negatively. There was a significant and negative correlation between grain Cd and As concentrations.ConclusionsEight and 6 rice cultivars were identified as stable low accumulators of Cd and As, respectively, based on the multiple site and season trials. These cultivars are likely to be compliant with the grain Cd or As limits of the Chinese Food Safety Standards when grown in moderately contaminated paddy soils in South China.Electronic supplementary materialThe online version of this article (doi:10.1186/s12284-017-0149-2) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Genotypic and Environmental Variations in Grain Cadmium and Arsenic Concentrations Among a Panel of High Yielding Rice Cultivars

Duan

Shao

Tang

et al. 2017

Rice

131

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“…Recently rice has also been identified as a major exposure route, as evidenced by observations of a strong association between rice consumption and urinary arsenic. Indeed, it is often the most important human exposure route where drinking water arsenic concentrations are less than 50 g/l (Mondal et al, 2008;. To our knowledge, there are to date no studies that demonstrate such deleterious health impacts in humans consuming high arsenic rice in the absence of exposure through drinking water.…”

Section: Rice Is a Potential Source Of Arsenic Exposure To Humansmentioning

confidence: 94%

Arsenic Induced Health Effects, Genetic Damage and Genetic Variants in the Population Exposed to Arsenic through Drinking Water in West Bengal

Banerjee¹,

Giri²

2014

Proceedings of the Indian National Science Academy

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Ar s e n i c i s a p o t e n t h u ma n c a r c i n o g e n , wh i c h a ffe c t s mi l l i o n s o f p e o p l e a r o u n d t h e wo r l d c a u s i n g d e l e t e r i o u s h e a l t h impacts including cancer and death. In India, West Bengal is the worst affected state where more than 26 million people are exposed chronically to arsenic by drinking heavily contaminated ground water. Several hypotheses have been associated wi t h a r s e n i c -i n d u c e d c a r c i n o g e n e s i s i n c l u d i n g c h r o mo s o ma l a b n o r ma l i t i e s , o x i d a t i v e s t r e s s , a l t e r e d D N A r e p a i r, p 5 3 gene suppression, gene amplification, transformation and altered growth factors leading to increased cell proliferation and carcinogenesis. In addition to that, it has been hypothesised that altered DNA methylation patterns might contribute to a r s e n i c -i n d u c e d c a r c i n o g e n e s i s . E v e n t h e n , t h e m e c h a n i s m s l e a d i n g t o a r s e n i c -i n d u c e d c a r c i n o g e n e s i s a r e p o o r l y u n d e r s t o o d . W e h a v e b e e n t r y i n g t o i d e n t i f y t h e c o n t e n d e r s t h a t c o n t r i b u t e t o a r s e n i c s u s c e p t i b i l i t y , t o xi c i t y a n d c a r c i n o g e n i c i t y i n t h e arsenic exposed rural population of West Bengal. In this article, attempts have been made to summarise the work that we have carried out so far in the said human population exposed to arsenic through drinking water.

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“…Rice is the most important cereal and staple food for the people of Bangladesh who eat an average of 450 g rice a day [52], thus ingestion of rice is by far the dominant source ( i.e. , 50–70% of the total meal) of As poisoning pathway for populations exposed to low or no As in drinking water [50,56]. It is estimated that the daily consumption of rice with a total arsenic level of 0.08 μg/g (dry weight) contributes an equivalent drinking water arsenic level of 10 μg/L [51].…”

Section: Exposure Pathways and Health Effects Of Arsenicmentioning

confidence: 99%

Arsenic Contaminated Groundwater and Its Treatment Options in Bangladesh

Jiang

Ashekuzzaman

Jiang

et al. 2012

IJERPH

100

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Arsenic (As) causes health concerns due to its significant toxicity and worldwide presence in drinking water and groundwater. The major sources of As pollution may be natural process such as dissolution of As-containing minerals and anthropogenic activities such as percolation of water from mines, etc. The maximum contaminant level for total As in potable water has been established as 10 µg/L. Among the countries facing As contamination problems, Bangladesh is the most affected. Up to 77 million people in Bangladesh have been exposed to toxic levels of arsenic from drinking water. Therefore, it has become an urgent need to provide As-free drinking water in rural households throughout Bangladesh. This paper provides a comprehensive overview on the recent data on arsenic contamination status, its sources and reasons of mobilization and the exposure pathways in Bangladesh. Very little literature has focused on the removal of As from groundwaters in developing countries and thus this paper aims to review the As removal technologies and be a useful resource for researchers or policy makers to help identify and investigate useful treatment options. While a number of technological developments in arsenic removal have taken place, we must consider variations in sources and quality characteristics of As polluted water and differences in the socio-economic and literacy conditions of people, and then aim at improving effectiveness in arsenic removal, reducing the cost of the system, making the technology user friendly, overcoming maintenance problems and resolving sludge management issues.

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Rice is a major exposure route for arsenic in Chakdaha block, Nadia district, West Bengal, India: A probabilistic risk assessment

Cited by 275 publications

References 56 publications

Genotypic and Environmental Variations in Grain Cadmium and Arsenic Concentrations Among a Panel of High Yielding Rice Cultivars

Genotypic and Environmental Variations in Grain Cadmium and Arsenic Concentrations Among a Panel of High Yielding Rice Cultivars

Arsenic Induced Health Effects, Genetic Damage and Genetic Variants in the Population Exposed to Arsenic through Drinking Water in West Bengal

Arsenic Contaminated Groundwater and Its Treatment Options in Bangladesh

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