Results 321 to 330 of about 680,824 (391)

Leaching heavy metal from deposits of heavy metals with bacteria oxidizing elemental sulphur

Journal of Water Chemistry and Technology, 2015
Experiments were carried out on bacterial leaching heavy metals from aerobically stabilize excessive activated silt of Bortnichi Aeration Station of Kiev when adding elementary sulphur as a stimulant of the activity of acidophilic thiobacilli. It has been shown that a decrease of silt pH in the course of the process is a decisive factor of efficiency ...
A. M. Marchenko, G. N. Pshinko, V. Ya. Demchenko, V. V. Goncharuk   +3 more
openaire   +1 more source

Wet Deposition of Heavy Metals

1989
Macroscale and microscale processes of removal of atmospheric metals from the atmosphere by precipitation and fog water deposition are described. Methodologies for measuring wet deposition are critically examined. Finally, pitfalls in using historical measurements of metals deposition and scavenging ratios to estimate removal are discussed.
L. A. Barrie, R. S. Schemenauer
openaire   +1 more source

Heavy metals in atmospheric surrogate dry deposition

Chemosphere, 1999
This paper describes a methodological approach for the assessment of the amount of surrogate dry deposition of several toxic heavy metals (Cd, Cr, Cu, Ni, Pb, V, Zn) associated with atmospheric particulate matter at ground level. The objectives of the study were twofold: i) the evaluation of several techniques for the digestion of dry deposition ...
, Morselli, , Cecchini, , Grandi, , Iannuccilli, , Barilli, , Olivieri   +5 more
openaire   +2 more sources

Atmospheric bulk deposition of heavy metal(loid)s in central south China: Fluxes, influencing factors and implication for paddy soils.

Journal of Hazardous Materials, 2019
The depositions of heavy metal(loid)s (HMs) were measured in an urban agglomeration of China to investigate the fluxes, influencing factors, sources, and potential effects of these HMs.
Wenli Feng, Zhao-hui Guo, C. Peng, Xi-yuan Xiao, Lei Shi, P. Zeng, Hongzhen Ran, Qinghua Xue   +7 more
semanticscholar   +1 more source

Acid and heavy metal pollution by wet deposition

Science of The Total Environment, 1986
Abstract Wet deposition of acid and of ecotoxic heavy metals Cd, Pb, Cu and Zn by rain and snow in the F.R.G. was followed during the semidecade 1980 – 84 to establish the long term trends and to study regional and local situations. The free acid in rain and snow is rather uniformly distributed over the whole area as a result of mesoscalic transport ...
P. Valenta, V.D. Nguyen, H.W. Nornberg
openaire   +1 more source

Impacts of atmospheric deposition on the heavy metal mobilization and bioavailability in soils amended by lime.

Science of the Total Environment
Atmospheric deposition is an important source of heavy metal in agricultural soils, but there is limited research on the mobility of these metals in soil and their impact on soil amendment.
Hongbiao Cui, Yingjie Zhao, Kaixin Hu, Rui Xia, Jingjing Zhou, Jun Zhou   +5 more
semanticscholar   +1 more source

Dry deposition characteristics of heavy metals in Europe

Toxicological & Environmental Chemistry, 2001
Dry atmospheric deposition of heavy metals Cd, Cu, Cr, Mn, Ni, Pb and Zn have been analysed at different sites in Europe to identify seasonal variations and statistical characteristics in the period 1995–1996. Clear seasonal variations of Cd, Mn, Pb and Zn levels between winter and summer were observed.
N. Lavín, E. Marín
openaire   +1 more source

Effects of atmospheric deposition on heavy metal contamination in paddy field systems under different functional areas in ChangZhuTan, Hunan Province, China.

Science of the Total Environment
In recent decades, the problem of heavy metal contamination in rice paddies has attracted widespread attention. However, most studies on heavy metal contamination in paddy fields are biased towards soil and/or rice plants, without taking atmospheric ...
Pengyue Yu, Xingyuan Shao, Maodi Wang, Zhen Zhu, Zhenlong Tong, Jianwei Peng, Yaocheng Deng, Ying Huang   +7 more
semanticscholar   +1 more source

Atmospheric deposition of heavy metals in central Ontario

Water, Air, and Soil Pollution, 1981
As part of a study to determine the magnitude of atmospheric inputs of materials into the lakes of central Ontario, a four-station network of bulk deposition and wet-only precipitation samplers was established in the Muskoka-Haliburton and Sudbury regions to determine the deposition (mg m2− yr−1) and volume weighted concentration (μg 1−1) of Ph, Cu, Ni,
Dean S. Jeffries, Warren R. Snyder
openaire   +1 more source

Uptake, impact, adaptive mechanisms, and phytoremediation of heavy metals by plants: Role of transporters in heavy metal sequestration.

Plant physiology and biochemistry : PPB
Heavy metals (HMs) pose severe threats to both the environment and its inhabitants, leading to reduced crop productivity and hazardous impacts on human and animal health.
A. Panda, Dhara Fatnani, A. Parida
semanticscholar   +1 more source