نتایج جستجو برای: pm10 5000 170 00466 20 00041 000264 site personnel co 0023 2360 06470 277 281
تعداد نتایج: 1305325 فیلتر نتایج به سال:
OBJECTIVES To investigate the validity of outdoor concentrations of particulate matter < 10 microns diameter (PM10) as a measure of exposure in time series studies, and to study the extent to which differences between personal and outdoor PM10 concentrations can be explained. METHODS Four to eight repeated measurements of personal and outdoor PM10 concentrations were conducted for 45 children...
Background and Objective: The present study was carried out to determine the amount and ionic characterization of TSP and PM10 aimed at identifying the potential emission sources of particulates in the ambient air of Tabriz. Materials and Methods: TSP and PM10 samples were collected by two high volume samplers during September 2013 to August 2014. Water-soluble ions in particulate matter we...
افزایش گرد و غبارهای داخلی از یکسو و پیامدهای بهداشتی این طوفان‌ها از سوی دیگر، موجب شده است که بررسی زمینشیمی فلزات سنگین و شاخصهای زیستمحیطی طوفان‌های غبار در خوزستان، از اهمیت بالایی برخوردار باشد. در این راستا تعداد 40 نمونه گرد و غبار از اندازههای TSP و PM10 با دستگاه نمونهگیر High Volume Air Sampler گردآوری شد و غلظت فلزات سنگین وانادیوم، کبالت، نیکل، آرسنیک، کادمیوم، سرب و روی با ر...
The estimation of pollution fields, especially in densely populated areas, is an important application in the field of environmental science due to the significant effects of air pollution on public health. In this paper, we investigate the spatial distribution of three air pollutants in Tehran’s atmosphere: carbon monoxide (CO), nitrogen dioxide (NO2), and atmospheric particulate matters less ...
مقدمه: آلودگی هوا از مهم ترین مشکلات زیست محیطی در قرن اخیر است که سلامت انسانها را تهدید می نماید. مطالعه حاضر با هدف تعیین میزان آلودگی pm10، so2، co،h2s و no2 و تعیین شاخص کیفیت هوا (aqi) در اطراف پالایشگاه نفت بندرعباس انجام گردید. روش کار: در این مطالعه محل نمونه برداری منطقه ای نزدیک به پالایشگاه نفت بندرعباس انتخاب شد. جهت نمونه برداری از هوا به منظور ارزیابی pm10 از پمپ نمونه برداری با ...
The air pollution in China is a severe problem. The aim of our study was to investigate the impact of air pollutants on acute respiratory outcomes in outpatients. Outpatient data from 2 December 2013 to 1 December 2014 were collected, as well as air pollutant data including ozone (O₃), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and particulate matter (PM2.5 and PM10). W...
Almond harvest accounts for a significant amount of PM10 emissions in California each harvest season. This paper addresses the adjustment of sweeper depth and its effect on PM10 emissions from sweeping and pickup operations. Ambient total suspended particulate (TSP) and PM10 sampling was conducted during harvest with alternating control (proper sweeper setting) and experimental treatment (sweep...
In the whole world, most of air polluted cities were normalized during COVID-19 lockdown but after lockdown, pollution is continuously increasing day by day. present study, we assessed quality at selected sites Jaipur city from October 2020 to February 2021 quantify enhancement in pollution. The obtained data was processed using index (AQI), principal component analysis (PCA) and pearson correl...
Most studies of road dust composition have sampled a very wide range of particle sizes, but from the perspective of respiratory exposure to resuspended dusts, it is the PM10 fraction which is of most importance. The PM10 fraction of road dust samples was collected at two sites in Birmingham, UK (major highway and road tunnel) and one site in New Delhi, India. Dust loadings were found to be much...
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