نتایج جستجو برای: particulate matter of less than ten microns

تعداد نتایج: 21233982  

2011
D'Ann L Williams Patrick N Breysse Meredith C McCormack Gregory B Diette Shawn McKenzie Alison S Geyh

BACKGROUND Community exposures to environmental contaminants from industrial scale dairy operations are poorly understood. The purpose of this study was to evaluate the impact of dairy operations on nearby communities by assessing airborne contaminants (particulate matter, ammonia, and cow allergen, Bos d 2) associated with dairy operations inside and outside homes. METHODS The study was cond...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

simplification universal as a universal feature of translation means translated texts tend to use simpler language than original texts in the same language and it can be critically investigated through common concepts: type/token ratio, lexical density, and mean sentence length. although steps have been taken to test this hypothesis in various text types in different linguistic communities, in ...

2014
Julia R. Barrett

Assessing the Health Threat of Outdoor Air Lung Cancer Risk of Particulate Matter Exposure Outdoor air pollution is made up of particulate matter (PM) and hundreds of chemicals from natural sources and human-related activities. In October 2013 the International Agency for Research on Cancer (IARC) reviewed more than 1,000 research articles and formally designated outdoor air pollution in genera...

ژورنال: یافته 2016
امیدی خانی آبادی, یوسف, بصیری, حسن, سپه وند, اصغر, گودینی, حاتم,

Background: The climate change and particulate matter emission contented of bioaerosols is known as an important reason of increasing the allergic interactions especially in patients with defect in immunity system. The aim of this study was to investigate fungal bioaerosol concentrations in relation to particulate matter (PM10, PM2.5 and PM1) in indoor parts and ambient air of the generd educat...

2014
K V L Bharathi Dipankar Dwivedi Avinash Kumar Agarwal Mukesh Sharma

This study was set out to characterize particulate emissions from transportation diesel engine in terms of heavy metals. The exhaust particulates from Mahindra DI engine were collected and analyzed at four different engine operating conditions namely idling, 40%, 70% and full load. It was found that as the load increases from idling to full load, the heavy metal content in particulates graduall...

2013
Shan Zheng Minzhen Wang Shigong Wang Yan Tao Kezheng Shang

Panel studies show a consistent association between increase in the cardiovascular hospitalizations with air pollutants in economically developed regions, but little evidence in less developed inland areas. In this study, a time-series analysis was used to examine the specific effects of major air pollutants [particulate matter less than 10 microns in diameter (PM(10)), sulfur dioxide (SO(2)), ...

2011
S. Ikezawa M. Wakamatsu

In this paper, composition analysis using scanning electron microscopy/energy-dispersive Xray spectroscopy analysis (SEM-EDX) and laser-induced breakdown spectroscopy (LIBS) for particulate matter in diesel exhaust is presented. Conventionally, scanning mobility particle sizer (SMPS) has been widely used to obtain particle size distribution of the suspended particles. However, real-time analysi...

Journal: :Forests 2021

Broad-leaved evergreen trees create urban forests for mitigation of climate warming and adsorption particulate matter (PM). This study was performed to identify the species suitable greening by examining capacity in areas Korea, points elemental composition PM adsorbed tree. Leaf sampling carried out four times (period seven months from October 2017 May 2018) used after drying 28 37 days). Part...

Journal: :Journal of occupational and environmental hygiene 2008
Beverly S Cohen Arline L Bronzaft Maire Heikkinen Jerome Goodman Arthur Nádas

To provide quantitative evidence of the impact on people of a neighboring metropolitan airport, La Guardia Airport (LGA) in New York City, (1) airborne particulate matter (PM) was measured to determine whether concentration differences could be detected between homes that are upwind and downwind of the airport; (2) 24-hr noise measurements were made in 12 homes near the airport; and (3) the imp...

Airborne particulate matter (PM10 ) was collected from the atmosphere of the city of Isfahan. The concentration of heavy metals and anions associated with airborne particulate matter were determined using atomic absorption spectrometric and ion chromatographic techniques. A comparison was made between the variation in the concentration of PM10 and that for heavy metals and...

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