نتایج جستجو برای: particle particulate matter

تعداد نتایج: 391311  

Journal: :Research report 2002
Alan W Gertler John A Gillies William R Pierson C Fred Rogers John C Sagebiel Mahmoud Abu-Allaban William Coulombe Leland Tarnay Thomas A Cahill

Recent studies have linked atmospheric particulate matter with human health problems. In many urban areas, mobile sources are a major source of particulate matter (PM) and the dominant source of fine particles or PM2.5 (PM smaller than 2.5 pm in aerodynamic diameter). Dynamometer studies have implicated diesel engines as being a significant source of ultrafine particles (< 0.1 microm), which ma...

Journal: :health scope 0
aezam mohammadi shiraz university of medical sciences, shiraz, ir iran abooalfazl azhdarpoor department of environmental health, school of health, shiraz university of medical sciences, shiraz, ir iran; department of environmental health, school of health, shiraz university of medical sciences, shiraz, ir iran. tel: +98-7137251001, fax: +98-7137260225 abbas shahsavani department of environmental health, school of health, shahid beheshti university of medical sciences, tehran, ir iran hamidreza tabatabaee department of epidemiology, school of health, shiraz university of medical sciences, shiraz, ir iran

conclusions according to the results obtained, the largest numbers of deaths and illnesses were due to the high average pm10 concentration or an increase in the number of days of exposure to this pollutant. background particulate matters have harmful effects on human health and can intensify mortality and disease. objectives the purpose of this study was to evaluate the health impacts of partic...

The Bosphorus (Istanbul Strait) that connects the continents of Europe and Asia is too complex due to geographical conditions and have a continuously increasing maritime traffic. The length of the Bosphorus which connect the Black Sea and the  Marmara Sea is 29.9 km. The number of ships (Tanker, general Cargo and bulk carrier) passing through the Istanbul strait was recorded as 42553 in 2016 an...

2009

Applicable Pollutants: Particulate Matter (PM), including particulate matter less than or equal to 10 micrometers (:m) in aerodynamic diameter (PM10), particulate matter less than or equal to 2.5 :m in aerodynamic diameter (PM2.5), and hazardous air pollutants (HAPs) that are in particulate form, such as most metals (mercury is the notable exception, as a significant portion of emissions are in...

Journal: :Environmental research 2013
Liqun Liu Susanne Breitner Alexandra Schneider Josef Cyrys Irene Brüske Ulrich Franck Uwe Schlink Arne Marian Leitte Olf Herbarth Alfred Wiedensohler Birgit Wehner Xiaochuan Pan H-Erich Wichmann Annette Peters

BACKGROUND Although short-term exposure to ambient particulate matter has increasingly been linked with cardiovascular diseases, it is not quite clear how physical characteristics of particles, such as particle size may be responsible for the association. This study aimed at investigating whether daily changes in number or mass concentrations of accurately size-segregated particles in the range...

Journal: :journal of basic research in medical sciences 0
heshmatollah nourmoradi gholamreza goudarzi seyed mohammad daryanoosh fatemeh omidi-khaniabadi mehdi jourvand yusef omidi-khaniabadi

introduction: air pollution due to particulate matter is a major environmental and health issue in all regions of the world. the aim of this study was to investigate the health impacts of pm10 (particulate matter with an aerodynamic diameter ≤10μm) in khorramabad city, iran in 2014. materials and methods: in this study, pm10 sampling was conducted by a high-volume sampler at flow rate of 1.1-1....

Journal: :journal of research in health sciences 0

background : airborne particulate matter is one of the most important atmospheric pollutants. tile sources of particulate matter in the atmosphere are divided into two groups; 1) natural sources and 2) anthropogenic sources. the important components of airborne particulate matter and invarying concentrations are the ubiquitous components of the lower atmosphere. heavy metals are mainly emitted ...

Journal: :health scope 0
angel mario dzhambov department of hygiene and ecomedicine, medical university of plovdiv, plovdiv, bulgaria; department of hygiene and ecomedicine, medical university of plovdiv, plovdiv, bulgaria. tel: +359-32580562 donka dimitrova dimitrova department of health management and health economics, medical university of plovdiv, plovdiv, bulgaria tanya hristova turnovska department of hygiene and ecomedicine, medical university of plovdiv, plovdiv, bulgaria

conclusions proximity to road traffic might be a risk factor for ra as there are suspected effects associated with no2 and so2. overall, the available evidence is too preliminary and scarce to draw firm conclusions. however, the results indicate the feasibility of further studies elucidating on the relationship between air pollution and ra. results four relevant papers were included in a qualit...

Journal: :مدیریت خاک و تولید پایدار 0
رضا کریمی دانشگاه شهرکرد محمدحسن صالحی دانشگاه شهرکرد زهره مصلح دانشگاه شهرکرد

this study was conducted to investigate the impact of land use change on some of carbon components in safashahr area, fars province. four land uses (destroyed rangeland, agricultural land, new and old apple orchard) were selected. sampling was done randomly from two depths (0-20 and 20-50 cm) of each land use. particulate organic matter (pom) and extractable carbohydrate by hot water were measu...

2013
Susanne Gauggel Julia Wimmer Mark Wingfield Bart van der Burg Daniel R. Dietrich

Combustion of wood produces particulate matter (PM) emissions having the potential to induce respiratory tract diseases in humans. To date, however,few, if any, in vitro submerse exposure adverse effect studies characterized the actual particle characteristics within the culture medium. Indeed, the availability of particles and adsorbed toxic compounds in liquids may depend on particle characte...

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