نتایج جستجو برای: and nitrogen dioxide no2 into the air pollution standard index in 1997

تعداد نتایج: 24206134  

2015
Szu-Ying Chen Chang-Fu Wu Jui-Huan Lee Barbara Hoffmann Annette Peters Bert Brunekreef Da-Chen Chu Chang-Chuan Chan

BACKGROUND Limited information is available regarding long-term effects of air pollution on blood pressure (BP) and hypertension. OBJECTIVE We studied whether 1-year exposures to particulate matter (PM) and nitrogen oxides (NOx) were correlated with BP and hypertension in the elderly. METHODS We analyzed cross-sectional data from 27,752 Taipei City residents > 65 years of age who participat...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract a fundamental study of “historio-graphic metafiction” and “literary genres”, as introduced in “new historical philosophy”, and tracing them in the works of julian barnes having studied the two novels, the porcupine and arthur & george, by julian barnes, the researcher has applied linda hutcheon’s historio-graphic metafictional theories to them. the thesis is divided into five cha...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

آقائی, مینا, بهرامی اصل, فرشاد, سلحشور آرین, سهیلا , شاهسونی, عباس , کرمانی, مجید, کریم زاده, سیما, گودرزی, غلامرضا ,

Abstract Background and purpose: Aims: Weather is one of the essential needs of human. Due to increasing of the air pollution, air pollution is one of the most important challenges of human life, in the last decades. Air pollutants, including NO2 can have significant adverse health effects on the human. Therefore, evaluation of the health effects of this pollutant is necessary for its contro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

Journal: Pollution 2018

The present study applies the model of American Meteorological Society-Environmental Protection Agency Regulatory Model (AERMOD) to investigate NO2 emissions from Besat thermal power plant, which is fuelled by natural gas to function. Results indicate that the simulated concentration of NO2 based on AERMOD, does not exceed NO2 concentration limit, set by the Iranian Ambient Air Quality Standard...

2010
BRAD BOWLAND JOHN BEGHIN

This chapter describes how estimates of air pollution emissions are transformed into ambient concentration of pollution, further translated into exposure and health impacts on a population, and finally expressed in damages. Different trade and environmental policy menus lead to different levels of pollution emissions and income. For each menu the emissions levels translate into specific mortali...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

this study was conducted to investigate the impact of portfolio assessment as a process-oriented assessment mechanism on iranian efl students’ english writing and its subskills of focus, elaboration, organization, conventions, and vocabulary. out of ninety juniors majoring in english literature and translation at the university of isfahan, sixty one of them who were at the same level of writing...

Journal: :Thorax 2012
Amne Iskandar Zorana Jovanovic Andersen Klaus Bønnelykke Thomas Ellermann Klaus Kaae Andersen Hans Bisgaard

BACKGROUND Short-term exposure to air pollution can trigger hospital admissions for asthma in children, but it is not known which components of air pollution are most important. There are no available studies on the particular effect of ultrafine particles (UFPs) on paediatric admissions for asthma. AIM To study whether short-term exposure to air pollution is associated with hospital admissio...

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