نتایج جستجو برای: polluted cities air pollution

تعداد نتایج: 306415  

Journal: :Environmental research 2015
Hongliang Zhang Yungang Wang Jianlin Hu Qi Ying Xiao-Ming Hu

Meteorological conditions play a crucial role in ambient air pollution by affecting both directly and indirectly the emissions, transport, formation, and deposition of air pollutants. In this study, the relationships between meteorological parameters and ambient air pollutants concentrations in three megacities in China, Beijing, Shanghai, and Guangzhou were investigated. A systematic analysis ...

2005
Evangelia Samoli Antonis Analitis Giota Touloumi Joel Schwartz Hugh R. Anderson Jordi Sunyer Luigi Bisanti Denis Zmirou Judith M. Vonk Juha Pekkanen Pat Goodman Anna Paldy Christian Schindler Klea Katsouyanni

Several studies have reported significant health effects of air pollution even at low levels of air pollutants, but in most of theses studies linear nonthreshold relations were assumed. We investigated the exposure-response association between ambient particles and mortality in the 22 European cities participating in the APHEA (Air Pollution and Health--A European Approach) project, which is th...

1998
Masaki Takahashi

ly coal combustion, are major contributors to air pollution. Concentrations of suspended particles and sulfur dioxide (SO2) in the air of many cities in developing countries exceed World Health Organization standards1. The effects of this pollution on human health can be devastating and in the most seriously affected countries the economic costs are estimated to be a significant percentage of G...

2000
T. Lahiri M. R. Ray S. Mukherjee C. Basu P. Lahiri

Air pollution is a major problem in Calcutta. In this study, exfoliated sputum cytology of the exposed population was done in order to get an insight into the response of the lungs to air pollutants at the individual level. 468 residents from Calcutta and 60 from Sunderban islands, where ambient air pollution is negligible, were studied. Results showed remarkable increase in alveolar macrophage...

Journal: :E3S web of conferences 2021

Currently, all people are joining hands to contribute environmental protection, together heading towards a green and beautiful city. However, pollution in Vietnam is getting more serious, especially air pollution. Most of the cause from factory transport emissions, large cities with densely populated populations such as Hanoi Ho Chi Minh city, amount emissions big waste released into environmen...

2013
C.-Y. Cynthia Lin

Air pollution is a critical environmental issue for California, which has some of the nation’s most polluted air basins and also the nation’s most stringent set of state and local air quality standards. This paper reviews my previous work in Lin (2011), in which I examine the effects of agriculture-related local regulations in California on air quality, as measured by the number of exceedances ...

Journal: :محیط زیست طبیعی 0
الهه اکبری عضو هیئت علمی گروه ژئومورفولوژی و اقلیم‏شناسی، دانشگاه حکیم سبزواری، کارشناسی ارشد سنجش از دور و gis، سبزوار، توحید شهر، دانشگاه حکیم سبزواری، دانشکدۀ جغرافیا و علوم محیطی، گروه جغرافیا معصومه فاخری کارشناسی ارشد اقلیم‏ شناسی، دانشگاه حکیم سبزواری عفت پورغلامحسن کارشناسی ارشد اقلیم‏ شناسی، دانشگاه حکیم سبزواری زهرا اکبری آموزگار منطقۀ 4 تهران

urbanization expanse and population growth, as well as pilgrim's possibility of some cities provide overuse of vehicles and consequently increased air pollution. thus by considering the importance of the impact of air pollution on human health, in this study, air pollution in terms of pm10 using psi standard index and inverse distance weighting is zoned in mashhad. on the other hand, meteo...

2007

BACKGROUND: There is growing concern that moderate levels of outdoor air pollution may be associated with infant mortality, representing substantial loss of life-years. To date, there has been no investigation of the effects of outdoor pollution on infant mortality in the UK. METHODS: Daily time-series data of air pollution and all infant deaths between 1990 and 2000 in 10 major cities of Engla...

Journal: :Environmental Health Perspectives 1989
H E Wichmann W Mueller P Allhoff M Beckmann N Bocter M J Csicsaky M Jung B Molik G Schoeneberg

In January 1985 a smog period occurred for 5 days in parts of West Germany, including the Rhur District. Mortality (24,000 death certificates), morbidity in hospitals (13,000 hospital admissions, 5400 outpatients, 1500 ambulance transports) and consultations in doctors' offices (1,250,000 contacts) were studied for a 6-week period including the smog episode and a time interval before and therea...

Background: Air pollution is one of the disadvantages of unsustainable development cause to short and long term sanitary effects without consideration of environment in addition to destruction of environment. Therefore, the present research was conducted with the purpose of quantifying and estimating of health endpoints related to SO2 pollutants in six cities (Tehran, Mashhad, Isfahan, Shiraz a...

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