نتایج جستجو برای: Air Pollutants

تعداد نتایج: 223139  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

Journal: :Environmental Health Perspectives 2000
H H Suh T Bahadori J Vallarino J D Spengler

This review presents a brief overview of the health effects and exposures of two criteria pollutants--ozone and particulate matter--and two toxic air pollutants--benzene and formaldehyde. These pollutants were selected from the six criteria pollutants and from the 189 toxic air pollutants on the basis of their prevalence in the United States, their physicochemical behavior, and the magnitude of...

Journal: :journal of research in health sciences 0

background: measuring and monitoring of air pollutants are one of environmental and all' pollution controls tools. due to lack of widespread data in iran, this study was performed to estimate the trends of major pollutant emissions to atmosphere in the uk from 1980 to 1996. methods: this investigation is a retrospective study that the data were collected from the departments of environment, tra...

Journal: :iranian journal of health sciences 0
hossein alidadi department of environmental health engineering, health sciences research center, mashhad mohammad taghi shakeri department of community medicine, medical school, mashhad university of medical sciences, mashhad, iran ahmad hoseinzadeh department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran anoosheh noorani medical school, mashhad university of medical sciences, mashhad, iran

background & purpose: air pollution has been known as one of the most effective factors on cardiovascular, pulmonary and infectious diseases. this study aims to determine the relation between mortality rate and air pollution in mashhad during 2007-2009. materials & methods: data of air pollution, mortality rate and geographic factors were collected during 2007-2009 and analyzed. mortality rate,...

Journal: :Environmental Health Perspectives 2000

2014
Yunpeng Luo Huai Chen Qiu'an Zhu Changhui Peng Gang Yang Yanzheng Yang Yao Zhang

With the economic development of China, air pollutants are also growing rapidly in recent decades, especially in big cities of the country. To understand the relationship between economic condition and air pollutants in big cities, we analysed the socioeconomic indictors such as Gross Regional Product per capita (GRP per capita), the concentration of air pollutants (PM10, SO2, NO2) and the air ...

Journal: :Environmental Health Perspectives 1993
N S Weiss

The likelihood of an epidemiologic study correctly identifying an adverse health outcome associated with exposure to indoor air pollutants is increased if a) substantial variation exists in the frequency or level of exposure among study subjects otherwise at similar risk of the health outcome; b) the number of study subjects or study communities is large; c) the health outcome can be assessed w...

2017
Sewon Lee Kiyoung Lee

Time location patterns are a significant factor for exposure assessment models of air pollutants. Factors associated with time location patterns in urban populations are typically due to high air pollution levels in urban areas. The objective of this study was to determine the seasonal differences in time location patterns in two urban cities. A Time Use Survey of Korean Statistics (KOSTAT) was...

2010
Anthony UNG Lucien WALD Thierry RANCHIN Christiane WEBER Jacky HIRSCH Gilles PERRON Joseph KLEINPETER

The mapping of air quality over the city of Strasbourg and its vicinity requires an increase of the number of measurements aiming at spatializing information about air pollutants concentrations. A methodology based on a multisource approach for mapping air pollutants concentrations over the city was presented in previous communications. One step of the methodology is the estimation of pollutant...

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