نتایج جستجو برای: anthropogenic pollution

تعداد نتایج: 91827  

The Khuzestan plain is located in south western of Iran and is covered about 3.9 percent of the country area. Khuzestan plain is mostly covered by the Quaternary deposits. The thickness of these deposits exceeds 300m in some areas .Sedimentology and geochemistry of sand dunes producing centers are not only important for determining sedimentary and geochemical features of the particles possible ...

Journal: :Journal of environmental management 2012
A B Vicente T Sanfeliu M M Jordan

Environmental pollution control is one of the most important goals in pollution risk assessment today. In this sense, modern and precise tools that allow scientists to evaluate, quantify and predict air pollution are of particular interest. Monitoring atmospheric particulate matter is a challenge faced by the European Union. Specific rules on this subject are being developed (Directive 2004/107...

Journal: :محیط شناسی 0
محمد علی حمزه رضا حسن زاده

the study of regional variations and the anthropogenic contamination by trace toxic elements of soils is very important for environmental planning and monitoring in urban areas. soil, sediment and rocks of urban areas of kerman studied to assess the degree of pollution by trace elements as a consequence of anthropogenic sources. 37 samples were collected and analyzed by icp-ms for 29 elements. ...

Journal: :Science 1994
W L Chameides P S Kasibhatla J Yienger H Levy

Three regions of the northern mid-latitudes, the continental-scale metro-agro-plexes, presently dominate global industrial and agricultural productivity. Although these regions cover only 23 percent of the Earth's continents, they account for most of the world's commercial energy consumption, fertilizer use, food-crop production, and food exports. They also account for more than half of the wor...

2009
Teija Ruuhola Liisa M. Rantala Seppo Neuvonen Shiyong Yang Markus J. Rantala

Anthropogenic pollution causes oxidative stress in plants and reactive oxygen species (ROS) are diminished by antioxidative enzymes and small molecular antioxidants. Pollution may also affect the performance of plant-eating animals by increasing or decreasing their performance. The effects of pollution cannot be fully understood without knowledge of how pollution affects the interactions with t...

2017
Xianfei Huang Jiwei Hu Fanxin Qin Wenxuan Quan Rensheng Cao Mingyi Fan Xianliang Wu

Heavy metal pollution is a serious problem worldwide. In this study, 41 soil samples and 32 cabbage samples were collected from the area surrounding the Jinsha coal-fired power plant (JCFP Plant) in Guizhou Province, southwest China. Pb, Cd, Hg, As, Cu and Cr concentrations in soil samples and cabbage samples were analysed to study the pollution sources and risks of heavy metals around the powe...

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...

ژورنال: سلامت و محیط زیست 2021

Background and Objective: Today, soil and water pollution with heavy metals is one of the major challenges around the world. The aim of this study is to investigate the contamination of soils around a lead and zinc mine. Materials and Methods: In the summer of 2019, 100 soil samples were taken from the mine vicinity and the characteristics of texture, acidity, salinity, calcium carbonate, orga...

Journal: :international journal of marine science and engineering 2012
a. hosseini alhashemi m. mohammadi roozbahani p. maktabi

accumulation of trace metals in sediment can cause severe ecological impacts. the present study determines the elemental concentrations and chemical partitioning of heavy metals in surface sediment of shadegan wetland. shadegan wetland is one of the most important wetlands in southwest of iran and it is in ramsar-listed wetlands. for this purpose, 7 sampling stations were selected for sediment ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید