International Research Journal of Public and Environmental Health Vol.1 (7),pp. 150-157, September 2014 Available online at http://www.journalissues.org/IRJPEH/ http://dx.doi.org/10.15739/irjpeh.001 © 2014 Journal Issues ISSN 2360-8803 Original Research Article Emission profile of pollutants due to traffic in Lucknow City, India Accepted 28 August, 2014 M Tiwari 1* , SP Shukla 1 , NK Shukla 2 , RB Singh 1 , N Mumtaz 3 , VK Gupta 1 and V Singh 4 1 Department of Civil Engineering, Institute of Engineering and Technology, Lucknow-226021, U.P., India. 2 Environmental Monitoring Division, CSIR-Indian Institute of Toxicology Research, M.G. Marg, Lucknow-226001, U.P., India. 3 Department of Civil Engineering, Babu Banarsi Das Engineering College, Lucknow-226028, U.P., India. 4 Department of Civil Engineering, Motilal Nehru National Institute of Technology, Allahabad-211004, U.P., India. *Corresponding Author E-mail : mktiwariiet@gmail.com Tel.: +919450577490; Fax: +915222628227 The human behaviors over the last few decades have changed the global atmospheric condition. Industrial emissions, transportation, intensification of agricultural practices and urban development have directly elevated the levels of pollutant gases such as CO2, NO2, CO and Particulate Matter (PM), which are probably to have inconsiderate climatic implications. Study is based on emissions from 2-Wheelers, 3-Wheelers, 4-Wheelers, Light Commercial Vehicles (LCVs) and Heavy Vehicles (HVs) at Lucknow City, India for three consecutive months; February 1, 2014 to April 30, 2014. The concentration of SO2, PM, CO and NO2 of selected location was 0.21 µg/m 3 , 6.27 µg/m 3 , 74.28 µg/m 3 and 40.64 µg/m 3 at Hazaratganj Road where as for Kalidas road it was 0.11 µg/m 3 , 2.87 µg/m 3 , 35.78 µg/m 3 and 18.77 µg/m 3 , respectively. The concentrations of above pollutants were more at Hazaratganj Road as compare to Kalidas road. The emissions profile of SO2, PM, CO and NO2 were within national ambient air quality standard. Key words: Vehicle emission, particulate matter, traffic analysis and air modeling INTRODUCTION Lucknow city is the capital of Uttar Pradesh; which has a population of 2.82 million (Municipal corporation and Cantonment) as per 2011 census, area of 310 km 2 and its geographic position is 26°52' N latitude to 80°56' E longitude; 128 meter above the sea level. As a consequence of urban development, along with energy, the transport sector has been the centre of attention during last decade. The transport sector in India consumes about 16.9% that is 36.5 million tons of oil equivalents of total energy. Among different types of motor vehicles, percentage of two wheelers has revealed rapid growth and it constitutes 70% of total motor vehicles of India (Ramchandra et al., 2009). The main source of particulate air pollution in Lucknow city is vehicular traffic emission. The number of vehicle categories registered in Regional Transport Office (RTO) Lucknow was 14, 24,478 as of March 31, 2013 which is 8.35% higher over the last year. Uttar Pradesh State Road Transport Corporation (UPSRTC) introduced bus services under DzLucknow Mahanagar Parivahan Sewadz on different routes of Lucknow City. Since motor vehicle (traffic) emission are major sources of air pollution (Fujita et al., 1992, Kodama et al., 2002) in the Urban City. Major road present near the Hazaratganj was Nishatganj to Charbag, road which have massive vehicular motion as compare to other roads during entire years. (Figure 1) Considering the worsening traffic growth and emissions and their impact on human health and urban air quality there is a need for a regulatory framework for the management of traffic, air quality and emissions at local level, regional and national scales (Costabile et al., 2008). The continuous vehicular exhaust inhalation can lead to symptoms of lower respiratory tract such as cough, shortness of breath and pain with inspiration (Dockery et al., 1994, Pope III, 1997). The unpleasant effects of prominent air pollutants on environment and human health are well known. A large number of urban people are at the edge of health risk due to adverse air quality. Among the different sources of air pollutants, tail pipe emission from