PARTICULATE MATTER CONCENTRATIONS AND THE AIR QUALITY INDEX IN THE CENTRAL PART OF TEHRAN CITY, TEHRAN, IRAN

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LEYLI M.; NADAFI K.; NABIZADEH NOUDEHI R.; YOUNESIAN MASOUD; MESDAGHINIA A.R.; NAZMARA SH.

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Journal: JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH Year:2009 | Volume:7 | Issue:1 Page(s): 57-67

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Title

PARTICULATE MATTER CONCENTRATIONS AND THE AIR QUALITY INDEX IN THE CENTRAL PART OF TEHRAN CITY, TEHRAN, IRAN

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Keywords

AIR POLLUTIONQ1

PARTICULATE MATTER (PM)Q3

PM10Q3

PM2.5Q3

AIR QUALITY INDEX (AQI)Q3

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.Methods 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.Results: One-way ANOVA tests showed significant differences (p<0.05) between PM concentration in the two stations. The daily mean concentrations of PM10, PM2.5 and PM1.Were, respectively, 77.67, 44.46 and 26.89 mmm-3, in station 1, and 55.31, 28.15 and 19.12 mmm-3, in station 2.Conclusion: The concentrations of PM10, PM2.5 and PM1 were lower in both stations than the respective USEPA 24-hour primary NAAQS standards, established in 1987 for PM10 and in 1999 for PM2.5. However, the proportions of the total samples with PM concentrations exceeding the new EPA standards established in 2006 were 67% and 25% in stations 1 and 2, respectively. The air quality index (AQI) was unhealthy in 32% and 10.5% of the samples in stations 1 and 2, respectively. In addition, PM2.5 was the indicator pollutant in 87% of the samples in station 1 and 82% of the samples in station 2.

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APA: Copy

LEYLI, M., NADAFI, K., NABIZADEH NOUDEHI, R., YOUNESIAN, MASOUD, MESDAGHINIA, A.R., & NAZMARA, SH.. (2009). PARTICULATE MATTER CONCENTRATIONS AND THE AIR QUALITY INDEX IN THE CENTRAL PART OF TEHRAN CITY, TEHRAN, IRAN. JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH, 7(1), 57-67. SID. https://sid.ir/paper/389761/en

Vancouver: Copy

LEYLI M., NADAFI K., NABIZADEH NOUDEHI R., YOUNESIAN MASOUD, MESDAGHINIA A.R., NAZMARA SH.. PARTICULATE MATTER CONCENTRATIONS AND THE AIR QUALITY INDEX IN THE CENTRAL PART OF TEHRAN CITY, TEHRAN, IRAN. JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH[Internet]. 2009;7(1):57-67. Available from: https://sid.ir/paper/389761/en

IEEE: Copy

M. LEYLI, K. NADAFI, R. NABIZADEH NOUDEHI, MASOUD YOUNESIAN, A.R. MESDAGHINIA, and SH. NAZMARA, “PARTICULATE MATTER CONCENTRATIONS AND THE AIR QUALITY INDEX IN THE CENTRAL PART OF TEHRAN CITY, TEHRAN, IRAN,” JOURNAL OF SCHOOL OF PUBLIC HEALTH AND INSTITUTE OF PUBLIC HEALTH RESEARCH, vol. 7, no. 1, pp. 57–67, 2009, [Online]. Available: https://sid.ir/paper/389761/en

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