Air Pollution Quality Index (AQI) and Density of PM1, PM2.5 and PM10 in the Air of Qom

Abstract

Background and Objectives: Air pollution has broad social, economical, political and technical aspects. one of the major issues in this regard is taking measures to prevent its increase. Since suspended particles are among the standard pollutants, the present study was carried out with the aim of measuring the amounts of these particles. Methods: In the present study, the suspended particles ( PM1, PM2.5 and PM10) were measured at two sites in Qom city. For each of them, 60 samples were selected with the Enviro Check during five consecutive months during summer (2 months) and fall. Results: During sampling, PM10 in the period between October 22chr('39')th to November 22nd 2007 had the maximum amount with the mean of 117µg/m3 and in the period between September 22chr('39')th to October 22nd 2007 it had the minimum amount with the mean of 83µg/m3. PM2.5 in the period between November 22nd to December 22nd 2007 with the mean of 33µg/m3 had the maximum amount and in the period between July 22nd to October 22nd 2007 it had the minimum amount with the mean of 8µg/m3. Conclusion: Based on the findings of this study, the densities of suspended particles PM1, PM2.5 and PM10 were below the standard levels on most occasions. The amounts of AQI for them were normal and acceptable.

Keywords

• particulate matter
• air pollution-standards
• qom
• iran