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

تعداد نتایج: 9920432  

Air pollution in different cities of the world is a complex mixture of toxic components, including particulate matter (PM), mainly produced by combustion processes. A cross-sectional analytical study was conducted to investigate the relationship between air pollutants and mortality from cardiorespiratory diseases in Mashhad. To this end, the data on mortality from cardiorespiratory diseases in ...

Journal: :The Science of the total environment 2013
Zaheer Ahmad Nasir Ian Colbeck

To investigate the levels of particulate pollution in residential built environments measurements of PM(10), PM(2.5), and PM(1) and concentrations were made between 2004 and 2008 in various residencies in a UK suburban location. Measurements were carried out in three different residential settings (Types I, II and III). In type I non-smoking living rooms, the highest 24-hour mean concentrations...

2013
Hye Yin Park Sanghyuk Bae Yun-Chul Hong

OBJECTIVES We investigated the association between particulate matter less than 10 µm in aerodynamic diameter (PM₁₀) exposure and non-accidental mortality in Asian populations by meta-analysis, using both time-series and case-crossover analysis. METHODS Among the 819 published studies searched from PubMed and EMBASE using key words related to PM₁₀ exposure and non-accidental mortality in Asia...

2012
Candace Vahlsing Kirk R. Smith

Literature comparing national ambient air quality standards (AAQSs) globally is scattered and sparse. Twenty-four hour AAQSs for particulate matter <10 μm in aerodynamic diameter (PM(10)) and sulfur dioxide (SO(2)) in 96 countries were identified through literature review, an international survey, and querying an international legal database. Eighty three percent, of the 96 countries with infor...

Journal: :Dyna-colombia 2022

Particulate matter (PM) less than 2.5 um emitted by diesel engines is responsible for the morbidity and mortality associated with air pollution. Alternative fuels have been implemented, but their potential toxic effects are still unknown. The objective of this article to evaluate in vitro toxicity organic extract particulate a engine powered two different fuels. Following cell exposure fossil +...

Journal: :Environmental Health Perspectives 2001
P Penttinen K L Timonen P Tiittanen A Mirme J Ruuskanen J Pekkanen

Daily variations in ambient particulate air pollution are associated with variations in respiratory lung function. It has been suggested that the effects of particulate matter may be due to particles in the ultrafine (0.01-0.1 microm) size range. Because previous studies on ultrafine particles only used self-monitored peak expiratory flow rate (PEFR), we assessed the associations between partic...

Journal: :international journal of environmental research 2010
p. razos a. christides

in the industrial area of elefsis, greece, aerosol samples from the atmosphere were collected using a stacked filter unit sampler, which separates the airborne particulate matter into coarse (pm2.5-10) and fine (pm2.5) size fractions. the samples collected during the period january 2005 to march 2006, were analyzed by anodic stripping voltammetry (asv) and inductively coupled plasma atomic emis...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2003
Peter S Gilmour Irfan Rahman Kenneth Donaldson William MacNee

Increases in the levels of environmental particulate matter with a diameter of <10 microm diameter (PM(10)) in the air are associated with a variety of adverse health effects, particularly chronic lung and cardiovascular diseases. The expression of many inflammatory genes involves the remodeling of the chromatin structure provided by histone proteins. Histone acetylation causes the unwinding of...

Journal: :international journal of occupational hygiene 0
mahmoud mohammadyan department of occupational health, mazandaran university of medical sciences, mazandaran, iran mike ashmore department of environment, york university, united kingdom bijan shabankhani department of biostatistics, mazandaran university of medical sciences, mazandaran, iran.

since individuals spend the majority of their times indoors, fine particles generated in indoor combustion processes and by resuspension are important for health effects assessment. the nature and magnitude of indoor particle exposures can change rapidly because of the rapid changes in activities and sources. indoor pm 2.5 concentrations were measured in indoor office, café, and home where peop...

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