نتایج جستجو برای: pm10

تعداد نتایج: 4256  

2016
Hamid Taheri Shahraiyni Sahar Sodoudi Pasquale Avino

PM10 prediction has attracted special legislative and scientific attention due to its harmful effects on human health. Statistical techniques have the potential for high-accuracy PM10 prediction and accordingly, previous studies on statistical methods for temporal, spatial and spatio-temporal prediction of PM10 are reviewed and discussed in this paper. A review of previous studies demonstrates ...

Journal: :QJM : monthly journal of the Association of Physicians 2015
J Huang M Y Lim B Zhao L Shao

BACKGROUND The burning of moxa floss in moxibustion releases moxa smoke containing a substantial amount of particulate matter (PM10) into the environment, which has generated safety concerns about its potential health impact. DESIGN Plasmid scission assay was performed using PM10 collected from moxibustion clinics. METHODS PM10 was collected in winter 2012 by burning three types of moxa flo...

2017
Kenneth Donaldson M Ian Gilmour William MacNee

PM10 (the mass of particles present in the air having a 50% cutoff for particles with an aerodynamic diameter of 10 μm) is the standard measure of particulate air pollution used worldwide. Epidemiological studies suggest that asthma symptoms can be worsened by increases in the levels of PM10. Epidemiological evidence at present indicates that PM10 increases do not raise the chances of initial s...

2011
Lei Zhu Xin Huang Hui Shi Xuhui Cai Yu Song

Beijing has suffered from major air pollution in recent years from PM10. In this study, we investigated the transport pathways and potential sources of PM10 concentration based on backward trajectories and PM10 concentration records from 2003 to 2009. Four transport pathways of high PM10 existed. One was the northwest pathway, which had the most frequency of occurrence in spring and winter, and...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز 1389

تصاویر و محصولات سنجنده مودیس (deep blue aerosol optical thickness ، brightness temperature ) به منظور بارزسازی و زون بندی غلظت توده های گردوغبار جنوب غرب ایران در چهار ماه اول و اسفند سال 1388 جمع آوری گردید. از آنجا که مطالعات قبلی و تحلیل های تئوری بر مبنای انتقال تابش اتمسفر دال بر وجود یک رابطه همبستگی مثبت بین ضخامت نوری آئروسل (aod) و غلظت ذرات معدنی اتمسفر (pm10) می باشد، و با تصحیح a...

2010
Nicholaus M. Madden Randal J. Southard Jeffrey P. Mitchell

Management of soils to reduce the amount of PM10 emitted during agricultural tillage operations is important for attainment of air quality standards in California's San Joaquin Valley (SJV). The purpose of this study was to improve and expand upon earlier work of predicting tillage-generated dust emissions based on soil properties. We focus on gravimetric soil water content (GWC) and soil textu...

Journal: :Journal of research in health sciences 2015
Gilas Hosseini Pari Teymouri Behzad Shahmoradi Afshin Maleki

BACKGROUND The present study investigated the effect of the Middle East dust storm episodes on the concentration and composition of PM10 during April to September 2013 in Sanandaj City, western Iran. METHODS Sampling was once every six days, and on dusty days using an Omni air sampler. The PM10 sample was collected on polytetrafluoroethylene filters. Average of 24 h values of PM10 mass concen...

2015
Hao Yin Linyu Xu Yanpeng Cai Paul B. Tchounwou

Severe health risks caused by PM10 (particulate matter with an aerodynamic diameter ≤10 μm) pollution have induced inevitable economic losses and have rendered pressure on the sustainable development of society as a whole. In China, with the "Polluters Pay Principle", polluters should pay for the pollution they have caused, but how much they should pay remains an intractable problem for policy ...

Journal: :Occupational and environmental medicine 2005
P S Gilmour E R Morrison M A Vickers I Ford C A Ludlam M Greaves K Donaldson W MacNee

BACKGROUND AND AIMS Epidemiology studies have shown that cardiovascular (CV) disease is primarily responsible for the mortality associated with increased pulmonary environmental particle (PM10) exposure. The mechanisms involved in PM10 mediated CV effects are unknown although changes in plasma viscosity and in the homoeostasis of blood coagulation have been implicated. It was hypothesised that ...

Journal: :Respiratory Research 2000
Kenneth Donaldson M Ian Gilmour William MacNee

PM10 (the mass of particles present in the air having a 50% cutoff for particles with an aerodynamic diameter of 10 microm) is the standard measure of particulate air pollution used worldwide. Epidemiological studies suggest that asthma symptoms can be worsened by increases in the levels of PM10. Epidemiological evidence at present indicates that PM10 increases do not raise the chances of initi...

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