نتایج جستجو برای: arsenic contamination
تعداد نتایج: 68682 فیلتر نتایج به سال:
*Correspondence: Sutapa Bose, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur (Kalyani) 741246, Nadia, West Bengal, India e-mail: [email protected] The study area comes in one of the eight districts of West Bengal where groundwater contains arsenic above the prescribed limit by WHO (10 μg/l). Each day groundwater is being withdrawn by the vil...
BACKGROUND Arsenic can naturally occur in the groundwater without an anthropogenic source of contamination. In Bangladesh over 50 million people are exposed to naturally occurring arsenic concentrations exceeding the World Health Organization's guideline of 10 μg/L. Selenium and arsenic have been shown to facilitate the excretion of each other in bile. Recent evidence suggests that selenium may...
Inorganic arsenicals have been used in agriculture as pesticides or defoliants for many years and, in localized areas, oxides of arsenic have contaminated soils as a result of fallout from ore-smelting operations and coal-fired power plants. Use of inorganic arsenicals is no longer permitted in most agricultural operations, and recent air pollution controls have markedly reduced contamination f...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید