arsenic level Articles
-
Efficacy of arsenic filtration by Kanchan Arsenic Filter in Nepal
Groundwater arsenic contamination has caused a significant public health burden in lowland regions of Nepal. For arsenic mitigation purposes, the Kanchan Arsenic Filter (KAF) was developed and validated for use in 2003 after pilot studies showed its effectiveness in removing arsenic. However, its efficacy in field conditions operating for a long period has been scarcely observed. In this study, ...
-
Arsenic in Bangladesh and Perth
This study details the the Arsenic problem in ground water from Bangladesh and how the PDV6000plus can be used to monitor the Arsenic levels in ground water wells. Contains comparison data with inductively coupled plasma mass spectrometer (ICPMS) for groundwater samples in Perth, Western ...
-
Brought to Compliance: A Design-Build Delivery for Arsenic Removal in California - Case Study
Bakersfield Well No. 26 in California was experiencing high arsenic levels in multiple groundwater wells when system owner Cal Water sought assistance to resolve the contaminant issue. Arsenic levels had reached 0.012 mg/L and were affecting drinking water for customers throughout the city. To bring the system into compliance and help Bakersfield Well No. 26 meet the arsenic maximum ...
-
The effectiveness of arsenic remediation from groundwater in a private home
Abstract Private wells are the source of drinking water for approximately 15% of households in the United States, but these wells are not regulated or monitored by government agencies. The well waters can contain arsenic, a known carcinogen that occurs in groundwater throughout the nation at concentrations that can exceed the Maximum Contaminant Level defined by the U.S. Environmental Protection ...
-
Arsenic contamination and its causative factors in parts of Chhattisgarh, Central East India
This paper reports the present status of ground water arsenic contamination in the parts of Ambagarh Chowki block in District Rajnandgaon, of Chhattisgarh State. This location is the first arsenic contaminated location reported outside Bengal Delta Plain. The analysis of arsenic contamination measured during year 2008 to 2009 is compared with previously reported synoptic sampling results. This ...
-
Investigating and mapping spatial patterns of arsenic contamination in groundwater using regression analysis and spline interpolation technique
The present study investigates the hypothesis that arsenic concentrations correlate with tubewell depth, and examines the effectiveness of spline interpolation, specifically completely regularized spline (CRS) and spline with tension (SWT) in estimating the magnitude of arsenic contamination in groundwater in Thanh Tri, a densely populated district located in the southern part of Hanoi City, ...
-
Parental decisions, child health and valuation of avoiding arsenic in drinking water in rural Bangladesh
Arsenic contamination of groundwater in Bangladesh is a widespread public health hazard. Water sources without high arsenic levels are scarce, affecting people's availability for work and other activities when they have to seek safe water to drink. While children are particularly susceptible to chronic arsenic exposure, limited information and heavy constraints on resources may preclude ...
-
Groundwater arsenic in Chimaltenango, Guatemala
In the Municipality of Chimaltenango, Guatemala, we sampled groundwater for total inorganic arsenic. In total, 42 samples were collected from 27 (43.5%) of the 62 wells in the municipality, with sites chosen to achieve spatial representation throughout the municipality. Samples were collected from household faucets used for drinking water, and sent to the USA for analysis. The only site ...
-
5 States with high levels of Arsenic in groundwater
Arsenic is a chemical element that enters the environment from mineral deposits, industrial activity, pesticides and the smelting of metals. In high levels, arsenic can cause toxicity, liver and kidney damage, and even cancer. In 2001, the U.S. Environmental Protection Agency (EPA) set a maximum contaminant level of 10 ppb for arsenic in all potable water. Since the standard went into effect ...
-
Hilltown Township, Pennsylvania Solves Arsenic, Iron and Manganese Problems with One System
Hilltown Township, Pennsylvania, lies in the western corner of historic Bucks County. Located about 35 miles north of Philadelphia, the Township is home to the rolling farmland and 200-year-old farmhouses that are so common in this part of the state. The nearby Pearl S. Buck House, a National Historic Landmark housed in the nearly 200-year-old farmhouse that was Buck’s home for 38 years, pays ...
-
Solutions for removing arsenic from drinking water
Arsenic, a metalloid element, is found in many naturally occurring compounds. In its inorganic form, arsenic is toxic. Arsenic occurs naturally in some groundwater supplies worldwide, including in the drinking water supplies in parts of Taiwan, Japan, Bangladesh, and western South America. This is causing health problems, according to the American Cancer Society. Albuquerque, New Mexico, is the ...
-
Stanford Researchers Link Aquifer Overdraft to Arsenic Contamination
In a recent study, researchers used satellite data to establish a link between excessive pumping from California aquifers and dangerous arsenic concentration spikes in the groundwater of the Tulare Basin. This promises to be an important early warning system for the growing problem of arsenic contamination, which potentially threatens drinking water for more than a million people. Arsenic cannot ...
-
Project profile - troyer water system – Middlefield, Ohio arsenic, iron & manganese removal
Background In early 2008, AdEdge was selected by EcoWater Servisoft in Burton, Ohio to design, build, and startup an integrated treatment system to remove arsenic, iron, and manganese levels at the Troyer Water System in Middlefield to below the primary and secondary MCLs of 0.010 mg/L, 0.3 mg/L and 0.05 mg/L respectively. AdEdge first piloted a treatment system in spring of 2007 to satisfy OEPA ...
-
San Joaquin Valley California - Arsenic removal from ground water
Background The San Joaquin Valley of California is approximately 220 miles long and varies in width to a maximum distance of approximately 80 miles. The occurrence of groundwater over the entire extent of the valley is abundant. Recharge for the varied depths of aquifers is from precipitation in the form of rain and the snow pack from the western Sierra Nevada Mountain Range. High capacity wells ...
-
Arsenic geochemistry in a biostimulated aquifer: An aqueous speciation study
Stimulating microbial growth through the use of acetate injection wells at the former uranium mill site in Rifle, Colorado, USA, has been shown to decrease dissolved uranium (VI) concentrations through bacterial reduction to immobile uranium (IV). Bioreduction also changed the redox chemistry of site groundwater, altering the mobility of several other redox‐sensitive elements present in the ...
-
Effect of arsenic on soil, plant and foodstuffs by using irrigated groundwater and pond water from Nadia district, West Bengal
The total arsenic withdrawn by the seven shallow tubewells used for agricultural irrigation in the arsenic-affected areas of Nadia district per year is 3851 g (mean: 550 g, range: 118?2410 g). When the amount of arsenic in the groundwater is high, it has been observed that the levels of arsenic in agricultural land soil and plants are correspondingly high. Arsenic concentration in paddy field ...
-
Park City, Utah Arsenic removal from ground water
Background Park City Utah Water, which serves a population of 6,500, has five water sources. Spiro Tunnel and Spiro Portal are two that were in need of Iron and Manganese removal as well as above limits for Arsenic. Filtronics was engaged by the engineering firm of Eckhoff, Watson and Preator (EWP), Salt Lake City, to perform pilot tests for the Park City Municipal Corporation. The purpose of ...
-
Project profile - Brandywine Elementary School New Palestine, Indiana AD26 arsenic, iron, manganese removal system
Background In July 2009, AdEdge Technologies Inc. (AdEdge) was contacted by Ladd Engineering, Inc. to provide a proposal for the Brandywine Elementary School in the Southern Hancock School District. Shortly thereafter, AdEdge was selected to provide a potable water treatment system to the school to reduce elevated levels of arsenic, iron, and manganese that exceeded drinking water standards. ...
-
Study: Coal-Fired Power Plants Are Polluting Groundwater
Environmental groups are pushing for tighter regulation and enforcement of EPA rules A new study shows that of the 265 coal-burning power plants it studied in the United States, 241 have dangerous levels of toxic metals in the groundwater around them, based on Environmental Protection Agency (EPA) standards. The figure, which comes to 91% of the plants, was derived only from plants that must ...
-
The role of indigenous microorganisms in the biodegradation of naturally occurring petroleum, the reduction of iron, and the mobilization of arsenite from West bengal aquifer sediments
High levels of naturally occurring arsenic are found in the shallow reducing aquifers of West Bengal, Bangladesh, and other areas of Southeast Asia. These aquifers are used extensively for drinking water and irrigation by the local population. Mechanisms for its release are unclear, although increasing evidence points to a microbial control. The type of organic matter present is of vital ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you