نتایج جستجو برای: air contaminates

تعداد نتایج: 206109  

Journal: :Work 2012
Paulo Victor R de Carvalho Bemildo Ferreira

In this article we present a model of some functions and activities of the Brazilian Air traffic Control System (ATS) in the period in which occurred a mid-air collision between flight GLO1907, a commercial aircraft Boeing 737-800, and flight N600XL, an executive jet EMBRAER E-145, to investigate key resilience characteristics of the ATM. Modeling in some detail activities during the collision ...

2014
Cecilia Neagu Mariana Burcea

This paper aims to highlight the air pollution aspect in Calarasi county. To this end, we have identified key air pollutants from industry, road transport and agriculture during the past three years and registered at two automatic stations existing in the county at present. The air quality in Calarasi county is within the limits imposed by law. For reducing the existing pollution, measures must...

Journal: :Occupational and environmental medicine 2003
E Samoli G Touloumi A Zanobetti A Le Tertre Chr Schindler R Atkinson J Vonk G Rossi M Saez D Rabczenko J Schwartz K Katsouyanni

BACKGROUND Several recent studies have reported significant health effects of air pollution even at low levels of air pollutants, but in most of these studies linear non-threshold relations were assumed. AIMS To investigate the NO2 mortality dose-response association in nine cities participating in the APHEA-2 project using two different methods: the meta-smooth and the cubic spline method. ...

2012
Jason Jingshi Li Boi Faltings Olga Saukh David Hasenfratz Jan Beutel

Monitoring and managing urban air pollution is a significant challenge for the sustainability of our environment. We quickly survey the air pollution modeling problem, introduce a new dataset of mobile air quality measurements in Zurich, and discuss the challenges of making sense of these data.

Journal: :Environmental science & technology 2003
Tracey Holloway Arlene Fiore Meredith Galanter Hastings

We examine the emergence of InterContinental Transport (ICT) of air pollution on the agendas of the air quality and climate communities and consider the potential for a new treaty on hemispheric air pollution. ICT is the flow of air pollutants from a source continent (e.g., North America) to a receptor continent (e.g., Europe). ICT of air pollutants occurs through two mechanisms: (i) episodic a...

Journal: :Arhiv za higijenu rada i toksikologiju 2000
H G Mücke

An important aim of air quality assessment is to provide information about population exposure and health impact assessment. Numerous epidemiological studies have already shown that exposure to excessive levels of ambient air pollutants are associated with either acute or chronic health effects. Until recently, the adequacy of monitoring population exposure in relation to quantitative assessmen...

2015
Junzhe Bao Xiping Yang Zhiyuan Zhao Zhenkun Wang Chuanhua Yu Xudong Li Kim Natasha Dirks

To provide some useful information about the control of air pollution in China, we studied the spatial-temporal characteristics of air pollution in China from 2001-2014. First, we drew several line charts and histograms of the Air Pollution Index (API) and Air Quality Index (AQI) of 31 capital cities and municipalities to research the distribution across different times and cities; then, we res...

Journal: :The European respiratory journal. Supplement 2003
M Decramer R Loddenkemper J Boe J Roca M Zelter

book of the workshop held in Pisa (Italy), March 12–14, 2001. Pisa, CNR.2. Davies AJS. Summary report of the workshop "Air pollutioneffects in the elderly" held in Pisa (Italy), March 12–14, 2001; www.ersnet.org. Date accessed: December 9, 2002. 3. Kunzli K. The public health relevance of air pollution abatement. Eur Respir J 2002; 20: 198–209. 4. D9Amato G, Liccardi G, D9Amato M, Cazzo...

2017
Yue-Hua Dai Wei-Xing Zhou

As a huge threat to the public health, China's air pollution has attracted extensive attention and continues to grow in tandem with the economy. Although the real-time air quality report can be utilized to update our knowledge on air quality, questions about how pollutants evolve across time and how pollutants are spatially correlated still remain a puzzle. In view of this point, we adopt the P...

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