Arsenic

Report by the Central Groundwater Authority on the presence of arsenic and fluoride in India, 18/11/2024

Report by the Central Groundwater Authority in the matter of Suo Moto arsenic found in groundwater in 25 states dated November 18, 2024. When the matter was listed before the NGT, August 7, 2024, wherein CGWA stated that the reports from seven states/UTs namely Maharashtra, Nagaland, Jharkhand, Tripura, Gujarat, Odisha …

Threat of arsenic to agriculture in India, Bangladesh and Nepal

Arsenic-polluted water used for irrigation in certain areas of India, Bangladesh and Nepal is posing a health hazard for people eating food from the crops irrigated. The accumulation of arsenic in the soil is a threat to sustainable agriculture in the areas affected. These problems are not yet widely recognised. …

Arsenic level alarming in port city: study

The level of arsenic in water of some tube-wells in the port city has increased to an alarming rate of 0.4 microgram per litre as against the permissible limit of 0.05 in Bangladesh. This was revealed in a study in 13 out of 41 wards of the city, jointly conducted …

Now arsenic in Karnataka

Study suspects gold mines to be the culprit H MUMTAZ knows something is wrong with Wandali village in Karnataka

Hundreds still suffer from arsenicosis in Jhenaidah

Several hundreds people are still suffering from arsenicosis in different areas of Jhenaidah. Even various types of awareness programmes could not eradicate the menace from the district. Use of arsenic contaminated water and inadequate awareness campaign are mainly responsible for the situation, said some of the affected people. The local …

Arsenic linked to diabetes

Even in low and moderate levels, the element is harmful high inorganic arsenic exposure to diabetes has been established earlier by studies in Bangladesh, Taiwan and Mexico. But the effect of low and moderate levels of arsenic was unknown. A study in the us has found that inorganic arsenic, even …

Endless thirst

They call it the elixir of life but with changing times, water has also become a driving force in economic activities, traditionally in agriculture, and now increasingly in the industry. No wonder, there has been a tendency to take for granted the availability of water and show scant responsibility to …

Removal of arsenic from wastewaters using electrocoagulation

The performance of electrocoagulation method with aluminium, iron and hybrid A1/Fe sacrificial anodes in the treatment of arsenite [As9III) and arsenate(As(V)] in pharmaceutical industrial effluents was investigated. Several working parameters, such as pH, current density, contact time and metal ion concentration were studied in attempt to achieve optimum removal efficiency.

Oridonin confers protection against arsenic-induced toxicity through activation of the Nrf2-mediated defensive response

Groundwater contaminated with arsenic imposes a big challenge to human health worldwide. Using natural compounds to subvert the detrimental effects of arsenic represents an attractive strategy. The transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) is a critical regulator of the cellular antioxidant response and xenobiotic metabolism. Recently, activation …

Water first: issues and challenges for nations and communities in South Asia

This book brings together current knowledge and cutting edge interdisciplinary perspectives from renowned scholars on the histories, politics, ecologies and cultures of water in South Asia. It explores the complexities of the issues and challenges thrown up by contemporary water management practices in the South Asian region. It also attempts …

Arsenic found in rice products too

Studies have revealed high arsenic levels in rice and rice products such as rice bran and rice crackers. A study published in April 2008 in the Proceedings of National Academy of Sciences (PNAS) reported high levels of arsenic in baby rice sold in supermarkets in the UK. The samples of …

Inorganic arsenic in water may be linked with diabetes risk

A new study adds to arsenic's notoriety as a cause of cancer and favored murder mystery poison by suggesting it also plays a role in diabetes. Exposure to low levels of inorganic arsenic

Increased arsenic in soil, water may sneak into food chain

Increased arsenic in soil and water may sneak into the food chain, as it is more or less present in all types of crops in the country's arsenic-affected areas with some crops, such as arum, showing much more contamination than the internationally allowable standard, according to a group survey. "Even …

Arsenic in groundwater: a world problem

This publication presents the problem of arsenic in groundwater in a manner accessible to a broad and involved public that might not normally have access to scientific literature. It includes sections on: sources and distribution of arsenic in groundwater and aquifers; geochemical experimentation and modelling are tools for understanding the …

Status of water treatment plants in India

The raw water quality available in India varies significantly, resulting in modifications to the conventional water treatment scheme consisting of aeration, chemical coagulation, flocculation, sedimentation, filtration and disinfection. The backwash water and sludge generation from water treatment plants are of environment concern in terms of disposal. Therefore, optimization of chemical …

Digging towards disaster

Bellary's mining magnates hogged the headlines during the recent Karnataka polls for their successful foray into politics. In Madhya Pradesh though, the script reads out in reverse. Here, politicians have joined the gold rush and acquired vast interests in mining across the state. The consequences of this mad scramble for …

Near-surface wetland sediments as a source of arsenic elease to ground water in Asia

Tens of millions of people in south and southeast Asia routinely consume ground water that has unsafe arsenic levels. Using hydrologic and (bio)geochemical measurements, the researchers show that on the minimally disturbed Mekong delta of Cambodia, arsenic is released from near-surface, river-derived sediments and transported, on a centennial timescale, through …

Poisoned waters traced to source

South Asia's well-water is widely polluted with arsenic, but no one has located the source. A study on the Mekong River finds that contamination begins in pond sediments, and is spread by groundwater flow to wells.

Rice: more silica in soil reduces arsenic uptake

R. PRASAD Two proteins in rice are responsible for transporting arsenite from soil Carcinogen: Arsenic present in the groundwater and in paddy fields irrigated by the groundwater causes skin cancer. Scientists in Japan have cracked the reason why rice is particularly efficient in assimilating arsenic from paddy soils. The findings …

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