نتایج جستجو برای: air pollution episodes

تعداد نتایج: 294996  

2006
A. Baklanov

The quality of the urban air pollution forecast critically depends on the mapping of emissions, the urban air pollution models, and the meteorological data. The quality of the meteorological data should be largely enhanced by using downscaled data from advanced numerical weather prediction models. These different topics, as well as the application of population exposure models, have traditional...

2005
A. Baklanov

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The quality of the urban air pollution forecast critically depends on the mapping of emissions, the urban air pollution models, and the meteorological data. The quality of the meteorological data should be largely enhanced by using downscaled data from ad...

2012
Daniela Dias Oxana Tchepel Anabela Carvalho Ana Isabel Miranda Carlos Borrego

The potential impacts of climate-induced changes in air pollution levels and its impacts on population health were investigated. The IPCC scenario (SRES A2) was used to analyse the effects of climate on future PM10 concentrations over Portugal and their impact on short-term population exposure and mortality. The air quality modelling system has been applied with high spatial resolution looking ...

2005
Douglas W. Dockery Heike Luttmann-Gibson David Q. Rich Mark S. Link Murray A. Mittleman Diane R. Gold Petros Koutrakis Joel D. Schwartz Richard L. Verrier

Epidemiologic studies have demonstrated a consistent link between sudden cardiac deaths and particulate air pollution. We used implanted cardioverter defibrillator (ICD) records of ventricular tachyarrhythmias to assess the role of air pollution as a trigger of these potentially life-threatening events. The study cohort consisted of 203 cardiac patients with ICD devices in the Boston metropolit...

Journal: :British medical bulletin 2003
Klea Katsouyanni

The adverse health effects of air pollution became widely acknowledged after severe pollution episodes occurred in Europe and North America before the 1960s. In these areas, pollutant levels have decreased. During the last 15 years, however, consistent results, mainly from epidemiological studies, have provided evidence that current air pollutant levels have been associated with adverse long- a...

2003
E. Penabad V. Perez-Muñuzuri J. A. Souto J. J. Casares J. L. Bermudez F. L. Ludwig

Since 1994, operational air pollution forecast is routinely applied at the As Pontes coal-fired power plant, with a 350-m stack, in order to prevent local fumigation episodes. Over the last ten years, several improvements in the numerical models were done, to obtain more accurate air pollution forecasts on a daily basis. In this work, a comparison of the results obtained for different periods, ...

2017
Florentina Villanueva José Albaladejo Beatriz Cabañas Pilar Martín Alberto Notario

In urban areas, emissions of air pollutants by anthropogenic processes such as traffic, industry, power plants and domestic heating systems are the main sources of pollution (Fenger, 1999). The massive growth in road traffic and in the use of fossil fuels during the last decades has changed the composition of urban air, increasing the frequency of pollution episodes and the number of cities exp...

Journal: :The European respiratory journal 1997
A Peters D W Dockery J Heinrich H E Wichmann

Short-term effects of air pollution (consisting primarily of sulphur dioxide and particulate matter but with low acidity) on respiratory morbidity were studied in asthmatic children from Sokolov, Czech Republic. Eighty nine children with asthma, who recorded daily peak expiratory flow measurements, symptoms and medication use in a diary, were analysed for 7 months during the winter of 1991-1992...

Journal: :journal of emergency practice and trauma 0
hassan amiri emergency department, iran university of medical sciences, tehran, iran ali bidari emergency department, iran university of medical sciences, tehran, iran samad shams vahdati road traffic injury research center, tabriz university of medical sciences, tabriz, iran nilofar ghodrati department of hematology oncology, alborz university of medical sciences, karaj, iran tayeb ramim sina trauma and surgery research center, tehran university of medical sciences, tehran, iran masoumeh emamverdy road traffic injury research center, tabriz university of medical sciences, tabriz, iran

objective: there are many communities at risk by a series of air pollution episodes. tehran is one of the most polluted cities in the world. the presence of one or more air pollutants with a certain concentration in a particular period of time can cause several adverse effects on human and animals’ well-being that can cause much morbidity. there are several pollutants in the air but some of the...

Ali Bidari Hassan Amiri Masoumeh Emamverdy Nilofar Ghodrati Samad Shams Vahdati, Tayeb Ramim

Objective: There are many communities at risk by a series of air pollution episodes. Tehran is one of the most polluted cities in the world. The presence of one or more air pollutants with a certain concentration in a particular period of time can cause several adverse effects on human and animals’ well-being that can cause much morbidity. There are several pollutants in the ai...

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