Journal of Environment and Health Sciences Keywords: PM 2.5 ; Traffc congestions; Traffc junctions; Respiratory diseases; Asth- ma; Traffc personnel; CAL roads J Environ Health Sci | volume 2: issue 6 Introduction Traffc junctions are provided on roads and at intersections for smooth movement of traffc and to avoid traffc congestions. Traffc signals are provided at the junctions with time duration of 55 sec to 2 min where the vehicles remain in idling condition. The number of vehicles rest at junction for few seconds and emissions are emitted continuously for that particular time. Survey was done at various traffc junctions and was observed that hardly any vehicle is switched off. This idling time increases air pollution levels which cause acute and chronic impact on the exposed people in the vicinity of the traffc junctions. Between 1976 and 1991 vehicle registration of two wheelers, scooter and cars in Maharashtra Metropolitan Region (MMR) increased by factor of 3.25, while truck and bus registration increased by 2.22 times, private vehicle registration increase by 3.45 times mainly as a result of increase in scooter and motor cycle ownership. Private vehicle registration in 2011 is expected to more than double the 1991 levels. Number of private vehicles per 1000 persons is expected to increase from 49 in 1991 to 61.1 by 2011(MMRDA, 1992). Copyrights: © 2016 Kale, U.S. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License. 1 Kale, U.S., et al. Special Issue Open Access Sardar Patel College of Engineering, Andheri, Mumbai, India Abstract Traffc junctions and congestions are the hotspots of suspended particulate matter. Survey is conducted on the street people those are directly exposed to partic- ulate matter. This study has put more focus on the respiratory disorders caused due to particulate matter. Comprehensive study is conducted on the traffc congestions and traffc personnel. Evaluation of particulate matter (PM 2.5 ) with a diameter of 2.5 micrometers or less is done during the peak hours. A weekly measurement of PM 2.5 was averaged at the most congested junctions of Mumbai. Time based study is un- dertaken to correlate the impact of PM 2.5 and effect of chronic and acute symptoms among traffc personnel’s. These effects were monitored through spirometric analysis on exposed and unexposed groups. Further the impacts were categorised into acute and chronic impacts. CALINE 3 is used to predict concentration of pollutants near traffc junctions where vehicles have to wait on queue in idling condition for signals. The traffc personnel’s were diagnosed for occupational health effects which compris- es of respiratory related diseases. These prospective data supports the development of asthma and respiratory disorders irrespective of the other risks. * Corresponding author: Uma S. Kale, Reserach Scholar, Sardar Patel College of Engineering, Andheri, Mumbai, India; E-mail: kaleuma@gmail.com Citation: Kale, U.S., et al. Evaluation of Impact of Particulate Matter on Traffc Personnel and at Traffc Junctions. (2016) J Environ Health Sci 2(6): 1- 9. Evaluation of Impact of Particulate Matter on Traffc Personnel and at Traffc Junctions Uma S Kale*, P.H. Sawant Received date: July 31, 2016 Accepted date: November 15, 2016 Published date: November 21, 2016 DOI: 10.15436/2378-6841.16.1037