نتایج جستجو برای: air pollutants

تعداد نتایج: 223139  

Journal: :international journal of preventive medicine 0
mansooreh dehghani amir anushiravani hassan hashemi narges shamsedini

background: expanding cities with rapid economic development has resulted in increased energy consumption leading to numerous environmental problems for their residents. the aim of this study was to investigate the correlation between air pollution and mortality rate due to cardiovascular and respiratory diseases in shiraz. methods: this is an analytical cross‑sectional study in which the corre...

Journal: :Journal of Crohn's & colitis 2011
Leigh A Beamish Alvaro R Osornio-Vargas Eytan Wine

The health impacts of air pollution have received much attention and have recently been subject to extensive study. Exposure to air pollutants such as particulate matter (PM) has been linked to lung and cardiovascular disease and increases in both hospital admissions and mortality. However, little attention has been given to the effects of air pollution on the intestine. The recent discovery of...

Journal: :The European respiratory journal 1996
J Heyder S Takenaka

Dogs are often the species of choice as an experimental model for the study of pulmonary responses to long-term exposure to air pollutants in chambers simulating environmental or occupational exposure in man. Their lungs bear a reasonable resemblance to human lungs, they are large enough to allow serial measurements of pulmonary responses, and they live long enough to ensure that findings are n...

Journal: :international journal of occupational hygiene 0
mohammad javad jafari department of occupational health, faculty of health, university of shahid beheshti, tehran, iran. behnaz shafiei department of occupational health, faculty of health, university of shahid beheshti, tehran, iran. mansour rezazadeh azari department of occupational health, faculty of health, university of shahid beheshti, tehran, iran. mohammad movahhedi department of occupational health, faculty of health, university of shahid beheshti, tehran, iran.

welders may suffer from welding fumes generated during the process if the ventilation systems are improperly applied. the objective of the present work was to study the mitigation of air pollutants at welding stations, using different ventilation scenarios. four air pollutants including iron oxide, respirable dust, ozone, and carbon monoxide were measured during four different ventilation scena...

اسدزاده, سیده نسترن, دولتی, محسن, هاشمی, میترا, کرمانی, مجید,

Abstract Background and Objective: Air pollution can harm humans and the environment. To reduce the effect of these parameters in the emissions of air pollutants known to the local topographical features and climatic conditions are factors. The purpose of this study, monthly and seasonal variations are contaminants and their relationship with meteorological parameters. Methods: the presen...

2017
Shovan Kumar Sahu Sri Harsha Kota

In New Delhi, the capital city of India, concentrations of regulated air pollutants often exceed the Indian national ambient air quality standards (INAAQS). As the sources of these pollutants differ, it is of utmost priority to understand the most dangerous air pollutant to formulate better control strategies in the city. In this study, regulated air pollutant concentrations in New Delhi during...

2012
G. Cannistraro

In this paper is reported an analysis about the outdoor air pollution of the urban centre of the city of Messina. The variations of the most critical pollutants concentrations (PM10, O3, CO, C6H6) and their trends respect of climatic parameters and vehicular traffic have been studied. Linear regressions have been effectuated for representing the relations among the pollutants; the differences b...

2016
Hui-Ying Chung Chia-Jung Hsieh Chun-Chieh Tseng Lih-Ming Yiin

The occurrence of allergic rhinitis (AR) may be significantly influenced by air pollution. This study examined the association between the first occurrence of AR in preschool children and the pre-incident levels of air pollutants in Taiwan. We identified 9960 eligible subjects from a systematic sampling cohort database containing 400,000 insureds of the National Health Insurance from 2007 to 20...

Journal: :Sao Paulo medical journal = Revista paulista de medicina 2017
Luiz Fernando Costa Nascimento Adrian Blanco Machin Djalma Antonio Almeida Dos Santos

CONTEXT AND OBJECTIVE: Several effects of exposure to air pollutants on human health are known. The aim of this study was to identify whether exposure of pregnant women to air pollutants contributes towards low birth weight and which sex is more affected. DESIGN AND SETTING: Longitudinal study using data on newborns from mothers living in São José do Rio Preto (SP) who were exposed to air pol...

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