arsenic contamination in soils, water and plants
arsenic contamination in soils, water and plants
... 0.3 mg/kg in plants and 0.001-0.01 mg/l in surface water. Contamination in soils and plants were found higher much larger than those in surface water flown from the tailing of gold mining disposal ... management in near future, the samples of top soils, water and plants were collected from the surrounding area of Gold Mine, within watershed covering gold mine a...
Ngày tải lên: 25/04/2013, 08:21
Effects of compost and phosphate amendments on arsenic mobility in soils and arsenic uptake by the hyper
... contamination from the leaching losses of wood preservatives. As arsenic accumulates in soils, there may be an increase in health risks resulting from As leaching into ground and surface water and ... amendment increases the effectiveness of Chinese brake fern to remediate As-contaminated soils, by increasing As uptake and decreasing As leaching. Abstract Chinese brake fern...
Ngày tải lên: 16/03/2014, 00:07
Heavy metal contamination in soils of urban highways (comparision between runoff and soil concentration
... fraction whereas Cu is mainly in the strongly bound organic and residual phases. Hewitt and Candy (1990), examined levels of Pb, Cd and Zn in soil and dust samples collected in and around the city ... background values. The contamination decreases as depth increases and it increases as the amount of organic C increases in the soil. The relationship between amount of con...
Ngày tải lên: 16/03/2014, 00:25
Arsenic fractionation in soils using an improved sequential extraction procedure
... commonly used SEPs in fractionat- ing As and Se using standard minerals and mixtures thereof [17]. They showed that during reductive and oxidative dissolution of As from a certain mineral phase, re-adsorption ... 98/83/EC [2] has fixed a limit of 10 gAsl −1 in drinking water in accordance with the WHO limit [3]. Arsenic contamination may be prevalent at mining 0003-2670/01/$...
Ngày tải lên: 15/03/2014, 23:48
Báo cáo " Distribution of Arsenic, Copper, Lead, Zinc elements in water and soils of sulfur deposits in the North West of Hanoi " pptx
Ngày tải lên: 28/03/2014, 15:20
Báo cáo " Preparation of nano-structural MnO2 in ethanol-water media coated on calcinated laterite and study of its arsenic adsorption capacity " docx
... solution was concerning to changing water structure, competition of hydration and solvation and for long chain molecule solvent, there appeared net-like of solvent molecules in water solution; ... approximate 60 nm and the width 20 nm. The effect of organic solvents on formation of chemical elements existing in water solution was revealed [6] and applied in chemist...
Ngày tải lên: 14/03/2014, 10:20
Poisoning the Well: How the EPA is Ignoring Atrazine Contamination in Surface and Drinking Water in the Central United States pot
... Widespread Atrazine Contamination and Inadequate Regulation and Monitoring NRDC analyzed in combination for the first time—the results of surface water and drinking water monitoring required by ... Council Poisoning the Well: How the EPA is Ignoring Atrazine Contamination in Surface and Drinking Water in the Central United States NRDC Report August 2009 The full repor...
Ngày tải lên: 15/03/2014, 10:20
