نتایج جستجو برای: air pollution modeling

تعداد نتایج: 629597  

2013
Hong Kong

We welcome the Subcommittee’s review of “Air Pollution Modelling in Hong Kong”. Hong Kong’s air quality is a topic of great public concern. The lack of progress in improving air quality has led many to question the effectiveness of our air quality management system. Most people understand that air quality modelling is important for our air quality management system because of its role in air qu...

2012
Charlotte Clark Rosanna Crombie Jenny Head Irene van Kamp Elise van Kempen Stephen A. Stansfeld

The authors examined whether air pollution at school (nitrogen dioxide) is associated with poorer child cognition and health and whether adjustment for air pollution explains or moderates previously observed associations between aircraft and road traffic noise at school and children's cognition in the 2001-2003 Road Traffic and Aircraft Noise Exposure and Children's Cognition and Health (RANCH)...

Journal: :Biostatistics 2016
Stacey E Alexeeff Raymond J Carroll Brent Coull

Spatial modeling of air pollution exposures is widespread in air pollution epidemiology research as a way to improve exposure assessment. However, there are key sources of exposure model uncertainty when air pollution is modeled, including estimation error and model misspecification. We examine the use of predicted air pollution levels in linear health effect models under a measurement error fr...

The city of Tehran undergoes an increasing growth in population as well as industrial activities, both of which increase the concentration of air pollutants. The current research tries to turn a limited and focused system of air contamination measurement and control to an unlimited and extensive one that examines the concentration of each of the contaminants in any area of Tehran. Accordingly, ...

Air pollution is one of the major threats to environment in the present time. Increase in degree of urbanization is a major cause of this air pollution. Due to urbanization, vehicular activities are continuously increasing at a tremendous rate. Mobile or vehicular pollution is predominantly degrading the air quality worldwide. Thus, air quality management is necessary for dealing with this seve...

Journal: Pollution 2019

The city of Tehran undergoes an increasing growth in population as well as industrial activities, both of which increase the concentration of air pollutants. The current research tries to turn a limited and focused system of air contamination measurement and control to an unlimited and extensive one that examines the concentration of each of the contaminants in any area of Tehran. Accordingly, ...

Journal: :محیط شناسی 0
علیرضا احسان زاده دانشجوی کارشناسی ارشد مهندسی محیط زیست - دانشگاه یزد و عضو باشگاه پژهشگران و نخبگان جوان فرهاد نژادکورکی دانشیار گروه مهندسی محیط زیست دانشگاه یزد علی طالبی دانشیار گروه مهندسی آبخیزداری دانشگاه یزد

1. introduction: increasing urbanization and industrialization rate in developed and developing countries cities, such as tehran, has led to increased air pollution. todays, the prediction and estimation of air quality parameters in urban regions are important topics in environmental studies due to their effect on human health. measurement of air quality are widely used in air quality control p...

2014
Saravanan Arunachalam Alejandro Valencia Yasuyuki Akita Marc L. Serre Mohammad Omary Valerie Garcia Vlad Isakov

Exposure studies rely on detailed characterization of air quality, either from sparsely located routine ambient monitors or from central monitoring sites that may lack spatial representativeness. Alternatively, some studies use models of various complexities to characterize local-scale air quality, but often with poor representation of background concentrations. A hybrid approach that addresses...

Journal: :Journal of Maritime & Transportation Science 2020

Journal: : 2023

Problem statement. The task of determining the dynamics air pollution in working room when containing a chemically hazardous substance flows into it is considered. peculiarity this problem that formation areas influenced by many factors, especially internal geometry (the presence technological equipment room, furniture, etc.). Therefore, necessary to have specialized mathematical models allow p...

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