نتایج جستجو برای: air pollutants

تعداد نتایج: 223139  

2014
Cecilia Neagu Mariana Burcea

This paper aims to highlight the air pollution aspect in Calarasi county. To this end, we have identified key air pollutants from industry, road transport and agriculture during the past three years and registered at two automatic stations existing in the county at present. The air quality in Calarasi county is within the limits imposed by law. For reducing the existing pollution, measures must...

Journal: :Occupational and environmental medicine 2003
E Samoli G Touloumi A Zanobetti A Le Tertre Chr Schindler R Atkinson J Vonk G Rossi M Saez D Rabczenko J Schwartz K Katsouyanni

BACKGROUND Several recent studies have reported significant health effects of air pollution even at low levels of air pollutants, but in most of these studies linear non-threshold relations were assumed. AIMS To investigate the NO2 mortality dose-response association in nine cities participating in the APHEA-2 project using two different methods: the meta-smooth and the cubic spline method. ...

Journal: :Environmental science & technology 2003
Tracey Holloway Arlene Fiore Meredith Galanter Hastings

We examine the emergence of InterContinental Transport (ICT) of air pollution on the agendas of the air quality and climate communities and consider the potential for a new treaty on hemispheric air pollution. ICT is the flow of air pollutants from a source continent (e.g., North America) to a receptor continent (e.g., Europe). ICT of air pollutants occurs through two mechanisms: (i) episodic a...

Journal: :Arhiv za higijenu rada i toksikologiju 2000
H G Mücke

An important aim of air quality assessment is to provide information about population exposure and health impact assessment. Numerous epidemiological studies have already shown that exposure to excessive levels of ambient air pollutants are associated with either acute or chronic health effects. Until recently, the adequacy of monitoring population exposure in relation to quantitative assessmen...

Journal: :iranian journal of public health 0
masoud mehrpour 1. dept. of neurology, iran university of medical sciences , tehran, iran. narges sadat shams-hosseini 2. dept. of occupational and environmental medicine, center research of occupational disease; firoozgar clinical research developmental center, tehran university of medical sciences , tehran, iran. saeed rezaali 3. sina ms research center, sina hospital, islamic azad university, tehran medical branch , tehran, iran. mohammad ali sahraiian 4. dept. of neurology, sina hospital, tehran university of medical sciences , tehran, iran. sara taki 5. firoozgar clinical research developmental center, iran university of medical sciences , tehran, iran.

multiple sclerosis (ms) is one of the autoimmune diseases with an unknown cause. the aim of this study was to explore the link between air quality and ms relapses in patients who suffer from ms.this time-series study was conducted on patients registered at the iranian multiple sclerosis society in 2011-2012. they were randomly selected from patients lived in tehran in the last five years, and h...

Journal: :The Science of the total environment 2013
Susanne Steinle Stefan Reis Clive Eric Sabel

Quantifying human exposure to air pollutants is a challenging task. Ambient concentrations of air pollutants at potentially harmful levels are ubiquitous in urban areas and subject to high spatial and temporal variability. At the same time, every individual has unique activity-patterns. Exposure results from multifaceted relationships and interactions between environmental and human systems, ad...

Journal: :Environmental Health Perspectives 1993
D W Dockery

Epidemiologic studies of the respiratory health effects of air pollution are intrinsically difficult because exposure is common, expected effects at concentrations found in developed countries are weak, random misclassification of exposure is common, and the respiratory health indicators have multiple etiologies. Exposures to air pollutants also are multidimensional, generally consisting of a m...

2017
Yue-Hua Dai Wei-Xing Zhou

As a huge threat to the public health, China's air pollution has attracted extensive attention and continues to grow in tandem with the economy. Although the real-time air quality report can be utilized to update our knowledge on air quality, questions about how pollutants evolve across time and how pollutants are spatially correlated still remain a puzzle. In view of this point, we adopt the P...

Journal: :jundishapur journal of health sciences 0
sahar geravandi department of nursing, islamic azad university, tehran medical sciences branch, tehran, ir iran; razi teaching hospital, clinical research development center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran gholamreza goudarzi department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of environmental health engineering, environmental technologies research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran ali akbar babaei department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of environmental health engineering, environmental technologies research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran afshin takdastan department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of environmental health engineering, environmental technologies research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mohammad javad mohammadi department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; razi teaching hospital, clinical research development center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-9355439707 mehdi vosoughi niri department of environmental health engineering, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions according to the results of this study, this increase could be due to higher fuel consumption, usage of gasoline in vehicles, oil industry, and steel and heavy industries in ahwaz. the risk of mortality and morbidity were detected at the current concentrations of air pollutants. results according to the findings, the concentration of sulfur dioxide in ahvaz had an annual average of ...

2006
J. C. F. Lo A. K. H. Lau Z. B. Yuan J. C. H. Fung F. Chen

A physical modeling approach for identification of source regions of primary and secondary air pollutants J. C. F. Lo, A. K. H. Lau, Z. B. Yuan, J. C. H. Fung, and F. Chen Atmospheric, Marine and Coastal Environment Program, The Hong Kong University of Science and Technology, Hong Kong, P. R. China Environmental Central Facility, Institute for the Environment, The Hong Kong University of Scienc...

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