نتایج جستجو برای: air pollution concentration

تعداد نتایج: 611423  

 Introduction: From human- made pollutants, SO2 has been widely studied. This research aims to estimate the respiratory deaths and COPD related to SO2 pollutant in 2011. Methods: Firstly, the concentration of SO2 pollutant was measured by GRIMM device in 2011 in five stations in Tabriz. The data were processed by Excel software and fed to AIR Q model. Results: The result showed that the ...

Journal: :Epidemiology 1997
B Brunekreef N A Janssen J de Hartog H Harssema M Knape P van Vliet

The contribution of motorized traffic to air pollution is widely recognized, but relatively few studies have looked at the respiratory health status of subjects living near busy roads. We studied children in six areas located near major motorways in the Netherlands. We measured lung function in the children, and we assessed their exposure to traffic-related air pollution using separate traffic ...

Journal: :Biomedical and environmental sciences : BES 2009
Chang-Hong Chen Hai-Dong Kan Cheng Huang Li Li Yun-Hui Zhang Ren-Jie Chen Bing-Heng Chen

OBJECTIVE To investigate the potential impact of ambient air pollution on public health under various traffic policies in Shanghai. METHODS The exposure level of Shanghai residents to air pollution under various planned traffic scenarios was estimated, and the public health impact was assessed using concentration-response functions derived from available epidemiological studies. RESULTS Our...

2007
Mark A. Poth Mark E. Fenn

Current-year needles from mature ponderosa pine (Pinus ponderosa Dougl. ex. Laws.) were sampled at four sites across the air pollution gradient in the San Bernardino Mountains in southern California. The sites, in order of decreasing air pollution exposure, included: Sky Forest (SF), Conference Center (CC), Camp Angelus (CA) and Heart Bar (HB). Needle nutrients measured were: nitrogen (N), phos...

2005
Yuan Zhou Richard S.J. Tol

Although China has made dramatic economic progress in recent years, air pollution continues to be the most visible environmental problem and imposes significant health and economic costs on society. Using data on pollutant concentration and population for 2003, this paper estimates the economic costs of health related effects due to particulate air pollution in urban areas of Tianjin, China. Ex...

Journal: :the journal of tehran university heart center 0
soheil saadat sina trauma research center (strc), tehran university of medical sciences, tehran, iran. saeed sadeghian tehran heart center, tehran university of medical sciences, tehran, iran. reza hamidian tehran heart center, tehran university of medical sciences, tehran, iran. mohammad ali najafi air quality control company, tehran municipality, tehran, iran.

background: there are some reports on the association between air pollution and myocardial infarction, arrhythmia, and mortality due to cardiac problems in susceptible individuals. we aimed to evaluate the association of air pollution and the emergency visits due to cardiovascular diseases, in a specialized heart hospital in tehran. methods: the study design was cross-sectional. patients admitt...

Journal: :The Science of the total environment 2007
Wan-Li Cheng Yu-Song Chen Junfeng Zhang T J Lyons Joy-Lynn Pai Shiang-Hung Chang

Air pollution indices are commonly used to indicate the level of severity of air pollution to the public. The Pollution Standards Index (PSI) was initially established in response to a dramatic increase in the number of people suffering respiratory irritation due to the deteriorating air quality. The PSI was subsequently revised and implemented by the USEPA in 1999, and became known as the Air ...

2014
Ivana Ilić Milovan Vuković Nada Štrbac Snežana Urošević

Air pollution caused by motor vehicles is one of the most serious problems of civilized society. The aim of this paper is to develop a decision support system that can be used by authorities to reduce air pollution from road transport. The essence of this system consists of mathematical sub-models based on the computer program methodology for calculating emissions from road transport, (COPERT I...

Journal: :iranian red crescent medical journal 0
tahereh fathi najafi student research committee, department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran; lecturer departments of midwifery, medical university, mashhad branch, islamic azad university, mashhad, ir iran robab latifnejad roudsari evidence-based care research centre, department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran; evidence-based care research centre, department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran. tel: +98-5138591511, fax: +98-5138591511 farideh namvar institute of tropical forestry and forest products (introp), university putra malaysia (upm), selangor, malaysia; department of medicine, applied biology research center, mashhad branch, islamic azad university, mashhad, ir iran vahid ghavami ghanbarabadi department of epidemiology and biostatistics, school of public health , tehran university of medical sciences, tehran, ir iran zahra hadizadeh talasaz department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran mahin esmaeli department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran

context air pollution is common in all countries and affects reproductive functions in men and women. it particularly impacts sperm parameters in men. this meta-analysis aimed to examine the impact of air pollution on the quality of sperm. conclusions the results of this meta-analysis showed that air pollution reduces sperm motility, but has no impact on the other sperm parameters of spermogram...

ژورنال: طلوع بهداشت یزد 2013
دولتشاهی, شیدوش , ملکوتیان, محمد, مومنی, جمشید,

 Background:Consequences of air pollution on the health effects, including the formation and aggravation of respiratory ,neurological and cardiovascular disease, caused air quality monitoring and control as something inevitable in most urban & industrial areas issue that should be raised at national level. Industries are among important pollutant factors of the environment that contaminate thei...

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