نتایج جستجو برای: industrial concentration
تعداد نتایج: 520023 فیلتر نتایج به سال:
Most cities in China, especially industrial cities, are facing severe air pollution, which affects the health of residents and development cities. One most effective ways to alleviate pollution is improve urban ventilation environment; however, few studies have focused on relationship between them. The Frontal Area Index (FAI) can reflect obstructive effect buildings wind. It influenced by arch...
Ultrafine particles with a diameter below 1 μm are strongly linked to traffic and industrial emissions, causing a growing global health concern. In order to reveal the characteristics of ultrafine particles in central China, which makes up the sparse research in industrial cities of a developing country, particle number concentrations (PNC) together with meteorological parameters and concentrat...
Doogh is a popular dairy product in Iran owing to its beneficial influence on human health and nutritional value. The aim of this study was to evaluate aflatoxin M1 (AFM1) contamination in 225 commercial doogh samples composed of traditional (115 samples) and industrial pasteurized doogh (110 samples) obtained from popular markets of Tehran, Iran. The occurrence and concentration range of AFM1 ...
Industrial effluents, controversially, is one of the largest and major contributors of pollution in aquatic ecosystem and affects the aquatic organisms in general and fishes in particular. Several laboratory studies were conducted to evaluate the effects of both treated and untreated effluents on fish. The studies showed wide ranges of toxicity at organismal as well as at population levels. The...
The aim of this paper is twofold: first, to explore the effects of industrial cluster on innovation capacity, and second, to study the impact of external resources on firms’ innovation capacity especially under Chinese regional economic policy. This is a critical subject that lacks sufficient analysis. Through years of investment and effort, several IT industrial clusters have developed in Chin...
As precursors to tropospheric ozone and nitrate, nitrogen oxide (NOx) in the present atmosphere and its transformation in response to emission and climate perturbations are studied by using the CAM-Chem model and air quality measurements from the National Emissions Inventory (NEI), Clean Air Status and Trends Network (CASTNET), and Environmental Protection Agency Air Quality System (EPA AQS). I...
BACKGROUND Soil contamination by copper (Cu) and lead (Pb) is a widespread environmental problem. For phytoextraction to be successful and viable in environmental remediation, strategies that can improve plant uptake must be identified. In the present study we investigated the use of nitrogen (N) fertilizer as an efficient way to enhance accumulation of Cu and Pb from contaminated industrial so...
background: one of the most important environmental pollutants is industrial wastewaters. discharging of colorful industrial effluents to receptive waters can lead to eutrification and it has the carcinogenic and mutagenic properties. therefore, the aim of this study is evaluation of acid blue 15 dye removal by dried azolla from aqueous solution. material and methods: the azolla biomass was dri...
Abstract—The aim of this paper is to give an assessment of environmental effects of IPPC permit conditions of installations that are in specific territory with high concentration of industrial activities. The IPPC permit is the permit that each operator should hold to operate the installation as stated by the directive 2010/75/UE on industrial emissions (integrated pollution prevention and cont...
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