نتایج جستجو برای: gaseous pollutants

تعداد نتایج: 38626  

ثالثی, محمود, شاهسونی, عباس, محسنی بندپی, انوشیروان, هادئی, مصطفی, یعقوبی, مهدیه,

Background and purpose: Airports are proved to have adverse effects on the air quality of neighboring areas. This study aimed at determining the concentrations of air pollutants including PM10, PM2.5, O3, NO2, SO2, CO, benzene, toluene, ethylbenzene, and xylene (BTEX) in Mehrabad International Airport. Materials and methods: The samples were taken from two sites (runway and passengers waiting ...

Journal: :American journal of respiratory and critical care medicine 2010
Matthew J Strickland Lyndsey A Darrow Mitchel Klein W Dana Flanders Jeremy A Sarnat Lance A Waller Stefanie E Sarnat James A Mulholland Paige E Tolbert

RATIONALE Certain outdoor air pollutants cause asthma exacerbations in children. To advance understanding of these relationships, further characterization of the dose-response and pollutant lag effects are needed, as are investigations of pollutant species beyond the commonly measured criteria pollutants. OBJECTIVES Investigate short-term associations between ambient air pollutant concentrati...

Journal: :ISPRS Int. J. Geo-Information 2017
Xiaolin Xia Qingwen Qi Hong Liang An Zhang Lili Jiang Yanjun Ye Chanfang Liu Yuanfeng Huang

Air pollution caused by atmospheric particulate and gaseous pollutants has drawn broad public concern globally. In this paper, the spatial-temporal distributions of major air pollutants in Shenzhen from March 2013 to February 2014 are discussed. In this study, ground-site monitoring data from 19 monitoring sites was used and spatial interpolation and spatial autocorrelation methods were applied...

Journal: :Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia 2012
Marcos Abdo Arbex Ubiratan de Paula Santos Lourdes Conceição Martins Paulo Hilário Nascimento Saldiva Luiz Alberto Amador Pereira Alfésio Luis Ferreira Braga

Over the past 250 years-since the Industrial Revolution accelerated the process of pollutant emission, which, until then, had been limited to the domestic use of fuels (mineral and vegetal) and intermittent volcanic emissions-air pollution has been present in various scenarios. Today, approximately 50% of the people in the world live in cities and urban areas and are exposed to progressively hi...

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