نتایج جستجو برای: arsenic contamination

تعداد نتایج: 68682  

2013
Palas Roy Naba Kumar Mondal Biswajit Das Kousik Das Naba K. Mondal

High arsenic in natural groundwater in most of the tubewells of the PurbasthaliBlock II area of Burdwan district (W.B, India) has recently been focused as a serious environmental concern. This paper is intending to illustrate the statistical modeling of the arsenic contaminated groundwater to identify the interrelation of that arsenic contain with other participating groundwater parameters so t...

2012
M Pearson

Background: Chronic arsenic pollution is now recognised as a worldwide problem, with 21 countries experiencing arsenic groundwater contamination. It is a particularly important issue in developing countries, where groundwater is generally the preferred drinking source (as an alternative to polluted surface water). Technologies to remove or mitigate arsenic contamination of groundwater include p...

2017
Arifin Sandhi

Reference to this publication should be written as: Sandhi, A (2017) " Arsenic removal by phytofiltration and silicon treatment-A potential solution for lowering arsenic concentrations in food crops " TRITA-LWR PHD-2017:02 Arsenic phytofiltration and silicon application-lowering arsenic concentrations in food crops iii Dedicated to My Parents & the millions of people affected by arsenic contami...

Journal: :Bulletin of the World Health Organization 2014
Christine Marie George Laura Sima M Helena Jahuira Arias Jana Mihalic Lilia Z Cabrera David Danz William Checkley Robert H Gilman

OBJECTIVE To assess the extent of arsenic contamination of groundwater and surface water in Peru and, to evaluate the accuracy of the Arsenic Econo-Quick(™) (EQ) kit for measuring water arsenic concentrations in the field. METHODS Water samples were collected from 151 water sources in 12 districts of Peru, and arsenic concentrations were measured in the laboratory using inductively-coupled pl...

Journal: :Applied and environmental microbiology 2013
Jian Chen Jie Qin Yong-Guan Zhu Víctor de Lorenzo Barry P Rosen

Accumulation of arsenic has potential health risks through consumption of food. Here, we inserted the arsenite [As(III)] S-adenosylmethionine methyltransferase (ArsM) gene into the chromosome of Pseudomonas putida KT2440. Recombinant bacteria methylate inorganic arsenic into less toxic organoarsenicals. This has the potential for bioremediation of environmental arsenic and reducing arsenic cont...

2015

Many countries in the world, especially South Asia e.g., Bangladesh, India, Nepal, Vietnam, China and Myanmar are facing ground water arsenic contamination problems and it has been recognized as an emerging threat and challenge to public health (Ahmad et al, 2004). Pakistan, following the arsenic crisis in Bangladesh and in other neighboring countries, has recognized the need of assessing drink...

2007
I. UL-HAQUE M. A. BAIG D. NABI W. HAYAT Rahim Yar Khan

Groundwater arsenic contamination has exponentially endangered the human life and complicated the efforts for obtaining and maintaining drinking water quality standards in Pakistan, particularly in the central and southern parts of the country. In the province of Sindh, groundwater arsenic concentration has reached up to 1100 μg/L against WHO limits of 10 μg/L. In the province of Punjab, over 2...

Journal: :Journal of health, population, and nutrition 2006
Amitava Mukherjee Mrinal Kumar Sengupta M Amir Hossain Sad Ahamed Bhaskar Das Bishwajit Nayak Dilip Lodh Mohammad Mahmudur Rahman Dipankar Chakraborti

The incidence of high concentrations of arsenic in drinking-water has emerged as a major public-health problem. With newer-affected sites discovered during the last decade, a significant change has been observed in the global scenario of arsenic contamination, especially in Asian countries. This communication presents an overview of the current scenario of arsenic contamination in countries acr...

2006
Bruce K. Caldwell Wayne T. Smith Kamalini Lokuge Geetha Ranmuthugala Keith Dear Abul H. Milton Malcolm R. Sim Jack C. Ng S.N. Mitra

The discovery of arsenic contamination in groundwater has challenged efforts to provide safe drinking-water to households in rural Bangladesh. Two nationally-representative surveys in 2000 and 2002 investigated water-usage patterns, water-testing, knowledge of arsenic poisoning, and behavioural responses to arsenic contamination. Knowledge of arsenicosis rose between the two surveys among women...

Journal: :Trends in plant science 2004
Andrew A Meharg

A study by Yongguan Zhu and co-workers has added greatly to our understanding of arsenic dynamics in the rhizosphere of paddy rice. Their finding that arsenic is sequestered in iron plaque on root surfaces in plants, regulated by phosphorus status, and that there is considerable varietal variation in arsenic sequestration and subsequently plant uptake, offers a hope for breeding rice for the ne...

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