The results demonstrate that As concentration is mainly found in shallow tubewells (14–49 m deep), which is the main source of drinking water in the region in deep tubewells (>49 m deep), have arsenic concentration < 50 μg/L. The analytical results by field test kits (FTK) revealed...
The focus of this study is on the rural areas of Sindh using ground water as major source of drinking water. In Pakistan groundwater arsenic concentration has reached up to 1100 渭g/L compared with WHO limits of 10渭g/L internationally and 50渭g/L for Pakistan. In the province of Sindh...
accessible sources of good quality water and in view of the fact that the threat to public health posed by arsenic occurs mainly through the ingestion of contaminated drinking water, the presence and distribution of arsenic was evaluated in the southern Pampa Plains of Bahía Blanca district in ...
This thesis focuses Arsenic(As) distribution and occurrence in groundwater of Yangtze River Delta economic region, East China. 2019 groundwater samples were collected to analyze 26 chemical compositions, including As. The Principal Component Analysis(PCA) was used to find out As source in groundwate...
Water is an essential natural source for sustaining life and environment which we have always thought to be available in abundance and free gift of nature. Natural and anthropogenic pollutants threaten the quality of life through environmental pollution. Rainwater recharged from surface into the ...
The source of arsenic is geological. We have analysed thousands of arsenic contaminated water samples. Most of the water samples contain a mixture of arsenite and arsenate and in none of them could we detect methylarsonic or dimethylarsenic acid. We have also analysed a large number of urine,...
Arsenic contaminates drinking water for millions of people in Bangladesh, parts of Central Europe, Chile, Argentina and the western United States, where ground water is the source of drinking water and the land has higher concentrations of arsenic. Overall, 7. 8 percent of Americans are believed...
The high As waters gain a component of 18O-enriched sulphate derived from roaster gases (δ18OSO4=+3.5‰), consistent with their arsenic source from the As2O3 chambers. High arsenic in NWTP water (8ppm As; δ18OSO4=2‰) derived from mine water, is attenuated to close to 1ppm ...
According to the 2015 survey (Ahmad et al., 2015), mean As concentrations in Dutch drinking water were in the range of <0.5–6.2 µg/L (average 1.2μg/L) (Fig. 4B), thus lower compared to the As concentrations in source water (Fig. 4A). This indicates that some As is rem...
"People in many areas are completely unaware of the risk because their groundwater wells have never been screened for arsenic," the study said. Arsenic is one of the most common inorganic contaminants found in drinking water worldwide.