نتایج جستجو برای: particulate matter with diameter less than 10 microns pm

تعداد نتایج: 9920432  

2008
Grant Boyle John Courtis Cornie Huizenga John Rogers Michael Walsh Herbert Fabian

The views expressed in this publication are those of the consultants and do not necessarily reflect the views and policies of ADB, its Board of Governors or the governments they represent, Neither ADB nor the CAI-Asia Center guarantee the accuracy of the data included in this publication, and neither ADB nor the CAI-Asia Center accept responsibility for any consequence of their use. Use of the ...

2013
Saeed Abbasi Anders Jansson Ulf Sellgren Ulf Olofsson

Particle emissions are a drawback of rail transport. This work is a comprehensive presentation of recent research into particle emissions from rail vehicles. Both exhaust and non-exhaust particle emissions are considered when examining particle characteristics such as PM10, and PM2.5 concentration levels, size, morphology, composition, as well as adverse health effects, current legislation, and...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2011
Xiaohua Xu Cuiqing Liu Zhaobin Xu Kevin Tzan Mianhua Zhong Aixia Wang Morton Lippmann Lung-Chi Chen Sanjay Rajagopalan Qinghua Sun

We have previously shown that chronic exposure to ambient fine particulate matter (less than 2.5 μm in aerodynamic diameter, PM₂.₅) pollution in conjunction with high-fat diet induces insulin resistance through alterations in inflammatory pathways. In this study, we evaluated the effects of PM₂.₅ exposure over a substantive duration of a rodent's lifespan and focused on the impact of long-term ...

2001
W H Roemer J H van Wijnen

n Amsterdam, the Netherlands, we measured airborne particulate matter (PM) during winter 1998-1999, taking daily average measurements at an urban background site, at a busy street, and at a motorway. Comparison of black smoke, PM(10), and PM(1.0) levels showed that daily averages were highly correlated over time. Median daily concentrations were elevated at sites affected by traffic. The highes...

Particulate matter is defined as a mixture of airborne solid particles and liquid droplets that can be inhaled and may cause serious health problems. Such elements are currently measured utilizing air quality monitoring devices that provide information on PM 10 and PM 2.5 levels giving information on pollution levels. However, many difficulties are encountered in the determination of nanosized ...

Journal: :Eureka: Physics and Engineering 2023

This article presents the development of a model center using agricultural intelligent technology. The goal this research is 1. To develop wireless sensor network. 2. be source learning on use technology in agriculture. For local and nearby farmers Using Sufficiency Economy Learning Center, according to King's Science. Rajamangala University Technology Suvarnabhumi area. With problems faced far...

2000
Arti Shukla Cynthia Timblin Kelly BeruBe Terry Gordon Willie McKinney Kevin Driscoll Pamela Vacek Brooke T. Mossman

High levels of ambient air pollution are associated with exacerbation of asthma and respiratory morbidity, yet little is known concerning the mechanisms of inflammation and toxicity by components of inhaled particulate matter (PM). Brief inhalation of PM 2.5 (particles of an aerodynamic diameter of , 2.5 microns) (300 m g/m 3 air for 6 h followed by a period of 24 h in clean air) by either C3H/...

Journal: :Environmental research 2012
Mercedes A Bravo Montserrat Fuentes Yang Zhang Michael J Burr Michelle L Bell

Air quality modeling could potentially improve exposure estimates for use in epidemiological studies. We investigated this application of air quality modeling by estimating location-specific (point) and spatially-aggregated (county level) exposure concentrations of particulate matter with an aerodynamic diameter less than or equal to 2.5 μm (PM(2.5)) and ozone (O(3)) for the eastern U.S. in 200...

Journal: :Journal of the Air & Waste Management Association 2004
James J Schwab John Spicer Kenneth L Demerjian Jeffrey L Ambs Henry D Felton

Long-term field comparisons of continuous and integrated filter measurements of mass concentrations of particulate matter (PM) with an aerodynamic diameter less than or equal to 2.5 microm (PM2.5) were performed at rural and urban sites in New York State. Two versions of the continuous tapered element oscillating microbalance (TEOM) mass monitor are deployed at each site, in addition to Federal...

Journal: :Environmental Health Perspectives 2001
N Vichit-Vadakan B D Ostro L G Chestnut D M Mills W Aekplakorn S Wangwongwatana N Panich

Several studies in North American cities have reported associations between air pollution and respiratory symptoms. Replicating these studies in cities with very different population and weather characteristics is a useful way of addressing uncertainties and strengthening inferences of causality. To this end we examined the responses of three different panels to particulate matter (PM) air poll...

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