نتایج جستجو برای: hazardous air pollutants

تعداد نتایج: 237723  

Journal: :international journal of environmental research 2010
s.y. kim y.s. kim y.s. han j.w. koo

bake-out was executed against the newly constructed apartment buildings using two methods to find out the effect of improvement on the indoor air quality and identify the concentration changes in the indoor air by the bake-out method for 3 months after occupancy. from two methods of bake-out executed before occupying, we did not find any reduction effect on the hazardous substances in the indoo...

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...

2016
Tichun Wang Hongyang Zhang Lei Tian Jianfen Liu Qiming Wang

As is known to all, human's daily life can not be separated from the atmospheric environment, and the quality of human life is directly affected by the quality of the atmospheric environment. In recent decades, the rapid development of China's economy, industry, transportation and other industries cause that concentration of the hazardous material in the air is much higher than the identificati...

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
George M. Woodall Mark D. Hoover Ronald Williams Kristen Benedict Martin Harper Jhy-Charm Soo Annie M. Jarabek Michael J. Stewart James S. Brown Janis E. Hulla Motria Caudill Andrea L. Clements Amanda Kaufman Alison J. Parker Martha Keating David Balshaw Kevin Garrahan Laureen Burton Sheila Batka Vijay S. Limaye Pertti J. Hakkinen Bob Thompson

The US Environmental Protection Agency (EPA) and other federal agencies face a number of challenges in interpreting and reconciling short-duration (seconds to minutes) readings from mobile and handheld air sensors with the longer duration averages (hours to days) associated with the National Ambient Air Quality Standards (NAAQS) for the criteria pollutants-particulate matter (PM), ozone, carbon...

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