نتایج جستجو برای: water and soil pollution

تعداد نتایج: 16974778  

2010
Bing Zhang Di Wu Quanjun Jiao Qingting Li

Mining activities have caused serious heavy metal pollution in soil and water resources. The weathering mullock and mining tailings transport the heavy metal in polluted areas into ambient soil, rivers, and groundwater, which destroys the surrounding ecosystem. The menace of heavy metal elements in minerals can lead to botanical variety and impact vegetal growth. With the development of remote ...

2001
R. R. Martin T. K. Sham G Wong Won K. W. Jones H. Feng

Mining operations in the Sudbury district of northern Ontario have resulted in environmental damage caused by acid rain and heavy metal pollution. Remedial liming (Ca/MgCO3) has been used in an attempt to restore the pH of the lake water and soil to natural levels. The spatial and temporal variation of metal concentrations in the annual growth rings of trees may be a useful indicator of the eff...

A Talebi A Zare Gariz,

In this study, the process-based watershed model, Soil and Water Assessment Tool (SWAT), was used for simulating hydrology and sediment transport in the Gharesou watershed and for identifying critical areas of soil erosion and water pollution. After model calibration and uncertainty analysis using SUFI-2 (Sequential Uncertainty Fitting, ver. 2) method, the outputs of the calibrated model were u...

Journal: :Environmental science. Processes & impacts 2015
Lei Gao Jianyao Chen Changyuan Tang Zhiting Ke Jiang Wang Yuta Shimizu Aiping Zhu

The distribution, migration and potential risk of heavy metals in water and soil environments, related to city water supply, were investigated. Heavy metal concentrations in waters from the Shima River water ranged from not detected (n.d.) to 749 μg L(-1) for Mn, n.d. to 151 μg L(-1) for Ni, 7.00 to 494 μg L(-1) for Zn, n.d. to 93.0 μg L(-1) for Cu and n.d. to 9860 μg L(-1) for Fe. The highest ...

2016
Renu Rani Satendra Kumar

Anthropogenic activities cause pollution of soil, groundwater, sediments, surface water, air with unsafe and noxious chemicals is one of the main crises facing the industrialized world today. Over the last century, public apprehension about environmental pollution has increased remarkably. Now a days, polluted soils and waters as a result of global industrialization pose a major environmental a...

2011
Arthur W. Garrison Jimmy K. Avants Rebecca D. Miller

Propiconazole is a chiral fungicide used in agriculture for control of many fungal diseases on a variety of crops. This use provides opportunities for pollution of soil and, subsequently, groundwater. The rate of loss of propiconazole from the water phase of two different soil-water slurries spiked with the fungicide at 50 mg/L was followed under aerobic conditions over five months; the t(1/2) ...

2010
Katharina Wick Christine Heumesser Erwin Schmid

Nitrogen is an important input to agricultural production but also detrimentally a ects the environmental quality of air, soil and water. Identifying the determinants of nitrate pollution and in turn de ning sensible performance indicators to design, enforce and monitor regulatory policies is therefore of utmost importance. Using data on more than 1000 Austrian municipalities, we provide a deta...

Journal: :Trends in plant science 2009
Jungwook Yang Joseph W Kloepper Choong-Min Ryu

Plant-growth-promoting rhizobacteria (PGPR) are associated with plant roots and augment plant productivity and immunity; however, recent work by several groups shows that PGPR also elicit so-called 'induced systemic tolerance' to salt and drought. As we discuss here, PGPR might also increase nutrient uptake from soils, thus reducing the need for fertilizers and preventing the accumulation of ni...

Journal: :Journal of environmental quality 2006
Katerina M Dontsova Sally L Yost Jiri Simunek Judith C Pennington Clint W Williford

Low-order detonations and blow-in-place procedures on military training ranges can result in residual solid explosive formulations to serve as distributed point sources for ground water contamination. This study was conducted to determine if distribution coefficients from batch studies and transport parameters of pure compounds in solution adequately describe explosive transport where compounds...

2014
Pingguo Yang Miao Yang Renzhao Mao Hongbo Shao

The study evaluated eight heavy metals content and soil pollution from agricultural soils in northern China. Multivariate and geostatistical analysis approaches were used to determine the anthropogenic and natural contribution of soil heavy metal concentrations. Single pollution index and integrated pollution index could be used to evaluate soil heavy metal risk. The results show that the first...

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