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Particulate matter concentrations and the air quality index in the central part of Tehran city, Tehran, Iran

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Author(s): M Leili | K Nadafi | R. Nabizadeh | M Yunesian | A R Mesdaghinia | Sh Nazmara

Journal: Journal of School of Public Health and Institute of Public Health Research
ISSN 1735-7586

Volume: 7;
Issue: 1;
Start page: 57;
Date: 2009;
Original page

Keywords: Air pollution | Particulate Matter (PM) | PM10 | PM2.5 | Air Quality Index (AQI)

ABSTRACT
Background and Aim: The association between particulate matter (PM) and cardiovascular diseases (CVD) was shown in the mid-1990's through several epidemiological studies. Increased hospital admissions of patients with cardiovascular and respiratory problems in days when, due to high concentrations of PM, air pollution is high, bears witness to this. In this study we measured concentrations of the PM fractions in the air in the central part of Tehran city, Tehran, Iran"nMethods and Materials: The concentrations of suspended particles (PM10, PM2.5 and PM1) were measured during February-June 2007 in two stations in central Tehran. Stations1 was in the Enghelab Square, a crowded part of the city with highly polluted air, where many educational institutes (e.g. Tehran University) are located, while station 2 was located near the Nasr Bridge, through which one of the most important highways (Martyr Chamran Highway) passes. The MP concentrations were measured once every 3 days, twice each day, once during the morning traffic rush hour (9-11 AM) and once during the afternoon traffic rush hour (4-6 PM), using a portable device, e.g., Environmental Dust Monitor Model GRIMM107."nResults: One-way ANOVA tests showed significant differences (p
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