Arsenic Contamination of Bangladesh Paddy Field Soils: Implications for Rice Contribution to Arsenic Consumption
2002/11/20 by Andrew A. Meharg, Md. Mazibur Rahman · 28 citations
Environmental Science · #Arsenic contamination and mitigation #Heavy metals in environment #Heavy Metal Exposure and Toxicity
paper · doi:10.1021/es0259842
Abstract
Arsenic contaminated groundwater is used extensively in Bangladesh to irrigate the staple food of the region, paddy rice (Oryza sativa L.). To determine if this irrigation has led to a buildup of arsenic levels in paddy fields, and the consequences for arsenic exposure through rice ingestion, a survey of arsenic levels in paddy soils and rice grain was undertaken. Survey of paddy soils throughout Bangladesh showed that arsenic levels were elevated in zones where arsenic in groundwater used for irrigation was high, and where these tube-wells have been in operation for the longest period of time. Regression of soil arsenic levels with tube-well age was significant. Arsenic levels reached 46 microg g(-1) dry weight in the most affected zone, compared to levels below l0 microg g(-1) in areas with low levels of arsenic in the groundwater. Arsenic levels in rice grain from an area of Bangladesh with low levels of arsenic in groundwaters and in paddy soils showed that levels were typical of other regions of the world. Modeling determined, even these typical grain arsenic levels contributed considerably to arsenic ingestion when drinking water contained the elevated quantity of 0.1 mg L(-1). Arsenic levels in rice can be further elevated in rice growing on arsenic contaminated soils, potentially greatly increasing arsenic exposure of the Bangladesh population. Rice grain grown in the regions where arsenic is building up in the soil had high arsenic concentrations, with three rice grain samples having levels above 1.7 microg g(-1).
Cited by
- Mechanism of Arsenic Adsorption on Magnetite Nanoparticles from Water: Thermodynamic and Spectroscopic Studies
- Multi‐Experiment and Multi‐Locus Genome‐Wide Association Mapping for Grain Arsenic in Rice Population
- Arsenic and heavy metals in paddy soil and polished rice contaminated by mining activities in Korea
- In vivo assessment of arsenic bioavailability in rice and its significance for human health risk assessment. [europepmc]
- Dietary arsenic exposure in bangladesh. [europepmc]
- Transporters of arsenite in rice and their role in arsenic accumulation in rice grain. [europepmc]
- Assessment of in vivo bioaccessibility of arsenic in dietary rice by a mass balance approach. [europepmc]
- Temporal variations in arsenic uptake by rice plants in Bangladesh: the role of iron plaque in paddy fields irrigated with groundwater. [europepmc]
- Rice field geochemistry and hydrology: an explanation for why groundwater irrigated fields in Bangladesh are net sinks of arsenic from groundwater. [europepmc]
- Arsenic biotransformation and volatilization in transgenic rice. [europepmc]
- Arsenic geochemistry and human health in South East Asia. [europepmc]
- Arsenic contaminated groundwater and its treatment options in Bangladesh. [europepmc]
- Roxarsone, inorganic arsenic, and other arsenic species in chicken: a U.S.-based market basket sample. [europepmc]
- Diet and toenail arsenic concentrations in a New Hampshire population with arsenic-containing water. [europepmc]
- Arsenic methylation and volatilization by arsenite S-adenosylmethionine methyltransferase in Pseudomonas alcaligenes NBRC14159. [europepmc]
- Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan. [europepmc]
- A Review of Groundwater Arsenic Contamination in Bangladesh: The Millennium Development Goal Era and Beyond. [europepmc]
- Field Study of Rice Yield Diminished by Soil Arsenic in Bangladesh. [europepmc]
- OsPT4 Contributes to Arsenate Uptake and Transport in Rice. [europepmc]
- Nutritional Influences on One-Carbon Metabolism: Effects on Arsenic Methylation and Toxicity. [europepmc]
- Risk and Benefit of Different Cooking Methods on Essential Elements and Arsenic in Rice. [europepmc]
- Heavy Metal and Metalloid Pollution of Soil, Water and Foods in Bangladesh: A Critical Review. [europepmc]
- Effect of Arbuscular Mycorrhizal Fungi, Selenium and Biochar on Photosynthetic Pigments and Antioxidant Enzyme Activity Under Arsenic Stress in Mung Bean ( Vigna radiata ). [europepmc]
- Purple non-sulphur bacteria and plant production: benefits for fertilization, stress resistance and the environment. [europepmc]
- Rice production threatened by coupled stresses of climate and soil arsenic. [europepmc]
- Determinants of arsenic methylation efficiency and urinary arsenic level in pregnant women in Bangladesh. [europepmc]
- Urban river pollution in Bangladesh during last 40 years: potential public health and ecological risk, present policy, and future prospects toward smart water management. [europepmc]
- A review on arsenic in the environment: contamination, mobility, sources, and exposure. [europepmc]
Related