نتایج جستجو برای: particulate matter of less than ten microns
تعداد نتایج: 21233982 فیلتر نتایج به سال:
The frequency and intensities of dust exposures in and near farm fields, which potentially contribute to high intensity human exposure events, are undocumented due to the transient nature of local dust plumes and the difficulties of making accurate concentration measurements. The objective of this study is to measure near-field spatial concentrations of the dust plumes emitted during tilling an...
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
Introduction: The present study aimed to compare the performance of two widely-used models for spatial assessment of particulate matter less than 10 microns (PM10) in ambient air of Yazd city. Finally, effective factors on concentrations of pollutants and corresponding standards were investigated. Materials and Methods: A number of 13 sampling stations were employed in different areas of Yazd ...
Background and Objective: The aim of this study was to investigate dust origin particulate (PM2.5) in Mashhad city in a long period of time (2014-2019) based on unhealthy days. Furthermore, changes in meteorological parameters and their relationship with dust storms have also been investigated. Materials and Methods: In order to locate dust pollution hotspots in mashhad air, first, information...
Background and purpose: Particulate matter less than 10 microns (PM10) is one of the main pollutants that cause irreparable damage to the environment and human health. The aim of this study was to estimate the health effects of PM10 on human health. Materials and methods: This analytic study was conducted in Bushehr, 2013. PM10 data were obtained from Bushehr Meteorological organization an...
Abstract (PM) Particulate matter is frequently cited as a cause of sickness. It confusing combination various chemical Aerosols and solids composed tiny fluid, dry solid broken pieces, particles pulps utilising liquid composites. For the goal regulating quality air, are classified by their diameter despite vast variation in size, shape, makeup, Those Particles with size ten microns or less (.P....
INTRODUCTION Evidence based on ecological studies in China suggests that short-term exposure to particulate matter (PM) is associated with cardiovascular mortality. However, there is less evidence of PM-related morbidity for coronary heart disease (CHD) in China. This study aims to investigate the relationship between acute PM exposure and CHD incidence in people aged above 40 in Shanghai. ME...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
With the increasing awareness of the health impacts of particulate matter, there is a growing need to comprehend the spatial and temporal variations of the global abundance of ground level airborne particulate matter with a diameter of 2.5 microns or less (PM2.5). Here we use a suite of remote sensing and meteorological data products together with ground-based observations of particulate matter...
Background and purpose: Particulate matter is one of the main pollutants in underground transport systems. Increase in its concentration leads to health problems in passengers and metro staff. Current research aimed at studying the concentration of particulate matter with aerodynamic diameter less than 10 micron (PM10) in Tehran underground transport system. Materials and methods: In thi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید