نتایج جستجو برای: air pollution episodes
تعداد نتایج: 294996 فیلتر نتایج به سال:
Health impact assessment has become important in the development of air quality policies and in finding the relationships between pollutants concentration and health effects. In our work we presented a novel index able to evaluate the effects on the human exposure caused by ambient air pollution in urban areas. The index is able to link both health risk factors and pollutants levels. The indexe...
Urban meteorology and pollution are characterised by a number of atmospheric parameters and their evolution in time, which all have specific problems as to their monitoring, representativeness, parameterisation and modelling compared to rural situations. The main goal of the Action COST-715 (1998-2004) was to provide the best guidance on how meteorology may be included in pollution calculations...
With the aim of identifying key factors explaining severe pollution events that occur under impact Northeast monsoon during winter period in Hanoi, a two-month campaign was carried out (11 January to 22 March 2019). The local meteorological parameters and origin air masses were investigated, notably using Doppler Lidar, structure boundary layer thoroughly studied elastic Lidar measurements for ...
High resolution models of air pollution transport and transformation are necessary in order to test possible abatement strategies based on pollution control and to forecast high pollution episodes. Models are especially relevant for secondary pollutants like ozone and nitrogen dioxide which are formed in the atmosphere through nonlinear chemical reactions involving primary pollutant species far...
BACKGROUND/AIM Numerous epidemiological studies have reported effects of air pollution on the prevalence of respiratory diseases in children. Association between air pollution and hospital admissions for respiratory diseases among children has not been investigated in our country yet. The purpose of this study was to examine impact of ordinary air pollutants (sulfur dioxide and black smoke) in ...
Mixing ratios of seven C1–C5 alkyl nitrates (RONO2) were measured during a 16-month study (August 2001–December 2002) at Tai O, a coastal site 30 km west of central Hong Kong in the Pearl River Delta, the fastest-growing industrial region in the world. The C3–C4 (rather than C1–C2) RONO2 were most abundant throughout the study, showing the importance of photochemical (rather than marine) RONO2 ...
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