Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Assessment of Personal Exposure Levels to Fine Particle Matter (Pm2.5) In Heavy Traffıc Microenvironments

The aim of this work is to investigate a personal exposure to fine particulate matter (PM2.5) in the most usable transport microenvironments (car, metrobus, municipal bus and walking) in Istanbul, Turkey. For meet this goal, using portable instrumentation, measurements of PM2.5 and ultrafine particulate counts in all transportation modes excepting Metro were performed during a period of October and November 2008, and in Metro during a period of January-March 2008. To compare the concentrations of particles at peak and peak-off times of traffic the measurements were performed two times a day in all modes and three times a day (morning, noon and evening) in Metro (inside a train and machinist cabin), respectively. The mode of transport, an existing of air-conditioning in a vehicle, traffic hour were considered as significant factors, influencing exposure concentrations.

As a result, there is a significant difference between concentrations of the particles with 0.3 µm, 0.5 µm, 1 µm ve 3 µm diameter, which were recorded an open and closed air-conditioning in the rush and non-rush hours inside a car. The same results were found for metrobus. The highest concentrations in comparison with other transportation modes are registered in municipality bus and then in walking, but there’s not a big difference between traffic peak and peak-off times.

The daily average of PM2.5 concentrations for a car is found different when the air-conditioning is turned and turned-off. In addition, the concentrations registered on weekdays are found to be higher then on weekends: in the morning on weekdays as 73 µg/m3 and on weekends mornings as 33 µg/m3. For metrobus, the values change between 46 µg/m3 and 34.5 µg/m3. The highest results are found for municipality and walking modes: in the morning 106 µg/m3 and 89 µg/m3, at lunchtime 89 µg/m3 and 82 µg/m3. PM2.5 concentrations inside a train are found to be 73 µg/m3 ve 62 µg/m3 and inside a machinist cabin of M1 (Aksaray-Havalimanı) and M2 (Taksim-4.Levent) metro lines 73 µg/m3 and 50 µg/m3, respectively.

DARAMA Sevgi
Danışman : Yrd.Doç Dr. Semih NEMLİOĞLU

Anabilim Dalı : Çevre Mühendisliği

Mezuniyet Yılı : 2009

Tez Savunma Jürisi : Yrd.Doç.Dr.Semih NEMLİOĞLU

Prof.Dr.Semiha ARAYICI

Prof.Dr.İzzet ÖZTÜRK

Prof.Dr.Nilgün BAKLAYA

Yrd.Doç.Dr.Burcu ONAT