نتایج جستجو برای: industrial concentration

تعداد نتایج: 520023  

ژورنال: طب کار 2021

Introduction: Air quality in industrial workshops is affected by various harmful chemical agents. purpose of this study was to compare of work environment air quality in a number of industrial workshops based on the mass concentration and number of suspended particles in air and application of Kriging geostatistical method in industries. Material and Method: This observational study was ca...

Journal: :The Science of the total environment 2015
Nicola Stromsoe Samuel K Marx Hamish A McGowan Nikolaus Callow Henk Heijnis Atun Zawadzki

Industrial metals are now ubiquitous within the atmosphere and their deposition represents a potential source of contamination to surficial environments. Few studies, however, have examined the environmental fate of atmospheric industrial metals within different surface environments. In this study, patterns of accumulation of atmospherically transported industrial metals were investigated withi...

Ali Torabian, Gholamreza Nabi Bidhendi, Majid Hosseinzadeh, Naser Mehrdadi,

Background: Considering the toxic effects of heavy metals and microbial pathogens in industrial wastewaters, it is necessary to treat metal and microbial contaminated wastewater prior to disposal in the environment. The purpose of this study is to assess the removal of heavy metals pollution and microbial contamination from a mixture of municipal and industrial wastewater using membrane biorea...

2003
Marius Brülhart

This paper analyses the geographical concentration of 32 manufacturing sectors over the 1972-1996 period, based on annual employment and export data for 13 European countries. Concentration has increased continuously over the sample period in employment terms, while remaining roughly unchanged in export terms. On average, increases in concentration were stronger prior to the launch of the Singl...

Journal: :global journal of environmental science and management 2016
l. trizio l. angiuli m. menegotto f. fedele r. giua

during the last years, several exceedances of pm10 and benzo(a)pyrene limit values exceedances were recorded in taranto, a city in southern italy included in so-called areas at high risk of environmental crisis because of the presence of a heavy industrial district including the largest steel factory in europe. a study of these critical pollution events showed a close correlation with the wind ...

Faramarz Moattar, Farid Zayeri, Mohammad Sadegh Sekhavatjou, Nabiollah Mansouri, Zohre Farahmandkia,

Background: Sampling was conducted on particles smaller than ten microns (PM10) in a high-traffic urban region once a week for two years in which fifteen heavy metals were measured. Methods: positive matrix factorization (EPA-PMF5), was used for source apportionment and characterization of the collected PM10. Assessment of cancer risk resulting from metals including arsenic, cadmium, chromiu...

2016
Jie Zhang Zhencheng Xing Bhavik Bakshi

As the main source of CO2 emissions in China, the industrial sector has faced pressure for reducing emissions. To achieve the target of 50% reduction of industrial carbon intensity by 2020 based on the 2005 level, it is urgent to formulate specific CO2 emission mitigation strategies in the provincial industrial sector. In order to provide decision-making support for the development and implemen...

Journal: :محیط شناسی 0
حمید رضا رحمانی مربی بخش خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی دانشگاه آزاد اصفهان، واحد اردستان

the effects of industrial textile water(effluent water,ew) on soil, water and plant was investigated in this research. for conducting this research major important textile factory were selected and sampling was done in 2 stages and in 2 years. in each district and the control field (soil not irrigation with effluent water) the soils from 0-30 cm depth and plants were sampled in three replicates...

2014
M. Mariappan

The discharge of potentially toxic trace metals into the environment has become a global problem. As a result of industrial activities and technological development, the amount of heavy metal ions discharged into streams and rivers by industrial and municipal waste-water have been increasing. In addition to natural sources of heavy metals (i.e. geologic weathering, volcanic activity, and animal...

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