نتایج جستجو برای: airborne particulate matter

تعداد نتایج: 247885  

Ahmad Reza Yari, Gholamreza Goudarzi, Majid Farhadi, Maryam Dastoorpoor, Mehdi Vosoughi, Mohammad Javad Mohammadi, Morteza Jafari, Sahar Geravandi,

Background & Aims of the Study: According to statistics reported by the international organization, 500,000 people annually due to airborne particulate matter exposure of the air are dying prematurely. Studies show the dust storm is responsible for the 7.1 % increase of fatality. Control of particulate matter is one of the most important methods of direct and indirect effects of par...

2015
Kristen D. Ojo Sutyajeet I. Soneja Carolyn G. Scrafford Subarna K. Khatry Steven C. LeClerq William Checkley Joanne Katz Patrick N. Breysse James M. Tielsch Gary Adamkiewicz M. Patricia Fabian

Alternative cookstoves are designed to improve biomass fuel combustion efficiency to reduce the amount of fuel used and lower emission of air pollutants. The Nepal Cookstove Trial (NCT) studies effects of alternative cookstoves on family health. Our study measured indoor particulate matter concentration (PM2.5), boiling time, and fuel use of cookstoves during a water-boiling test in a house-lik...

2018
David Q. Rich Mark J. Utell Daniel P. Croft Sally W. Thurston Kelly Thevenet-Morrison Kristin A. Evans Frederick S. Ling Yilin Tian Philip K. Hopke

Prior work has reported acute associations between ST-elevation myocardial infarction (STEMI) and short-term increases in airborne particulate matter. Subsequently, the association between STEMI and hourly measures of Delta-C (marker of woodsmoke) and black carbon (marker of traffic pollution) measured at a central site in Rochester, NY, were examined, but no association was found. Therefore, l...

Journal: :Indoor air 2010
J Apple R Vicente A Yarberry N Lohse E Mills A Jacobson D Poppendieck

UNLABELLED Over one-quarter of the world's population relies on fuel-based lighting. Kerosene lamps are often located in close proximity to users, potentially increasing the risk for respiratory illnesses and lung cancer. Particulate matter concentrations resulting from cook stoves have been extensively studied in the literature. However, characterization of particulate concentrations from fuel...

2011
Qi Zhang Jose L. Jimenez Manjula R. Canagaratna Ingrid M. Ulbrich Nga L. Ng Douglas R. Worsnop Yele Sun

Organic species are an important but poorly characterized constituent of airborne particulate matter. A quantitative understanding of the organic fraction of particles (organic aerosol, OA) is necessary to reduce some of the largest uncertainties that confound the assessment of the radiative forcing of climate and air quality management policies. In recent years, aerosol mass spectrometry has b...

Journal: :Journal of the Air & Waste Management Association 2007
Adam Reff Shelly I Eberly Prakash V Bhave

Methods for apportioning sources of ambient particulate matter (PM) using the positive matrix factorization (PMF) algorithm are reviewed. Numerous procedural decisions must be made and algorithmic parameters selected when analyzing PM data with PMF. However, few publications document enough of these details for readers to evaluate, reproduce, or compare results between different studies. For ex...

2010
Tarek El-Gaaly Joshua Gluckman

Particulate Matter (PM) is a form of air pollution that visually degrades urban scenery and is hazardous to human health and the environment. Current monitoring devices are limited in measuring average PM over large areas. Quantifying the visual effects of haze in digital images of urban scenery and correlating these effects to PM levels is a vital step in more practically monitoring our enviro...

2006
DAROLD E. WARD

Fire management specialists in the southeastern United States needing guides for predicting or assessing particulate matter emission factors, emission rates, and heat release rate can use the models presented in this paper for making these predictions as a function of flame length in the palmetto-gallberry fuel type. FOREST So. 29:761-770. ADDITIONAL

2016
Marie-Aimée Galeron Olivier Radakovitch Bruno Charrière Jean-François Rontani Boris Peter Koch

Autoxidation is a complex abiotic degradation process, and while it has long been known and well studied in biological compounds, it has been widely overlooked in environmental samples and as a part of environmental processes. With recent observations showing the magnitude of the involvement of autoxidation in coastal environments, it has become critical to better understand how and why this de...

2014
M. J. Ruzmyn Vilcassim George D. Thurston Richard E. Peltier Terry Gordon

The New York City (NYC) subway is the main mode of transport for over 5 million passengers on an average weekday. Therefore, airborne pollutants in the subway stations could have a significant impact on commuters and subway workers. This study looked at black carbon (BC) and particulate matter (PM2.5) concentrations in selected subway stations in Manhattan. BC and PM2.5 levels were measured in ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید