alexa Variations in Mixing Ratios of Ambient Ammonia, Nitric
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

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Research Article

Variations in Mixing Ratios of Ambient Ammonia, Nitric Oxide and Nitrogen Dioxide in Different Environments of India

S.K. Sharma1*, M. Saxena1, T.K. Mandal1, Y.N. Ahammed3, H. Pathak2, A. Datta1, T. Saud1 and B.C. Arya1
1Radio and Atmospheric Sciences Division, National Physical Laboratory, Council of Scientific and Industrial Research (CSIR), New Delhi-110 012, India.
2Environmental Sciences Division, Indian Agricultural Research Institute, New Delhi-110 012, India.
3Department of Physics, Yogi Vemana University, Vemanapuram, Kadapa-516003, India
Corresponding Author : Sudhir Kumar Sharma
Radio and Atmospheric Sciences Division National Physical Laboratory
Council of Scientific and Industrial Research (CSIR)
Dr. K S Krishnan Road, New Delhi-110 012, India
Tel: 91-11-45609448
Fax: 91-11-45609310
E-mail: [email protected], [email protected]
Received November 27, 2010; Accepted December 27, 2010; Published December 29, 2010
Citation: Sharma SK, Saxena M, Mandal TK, Ahammed YN, Pathak H, et al. (2010) Variations in Mixing Ratios of Ambient Ammonia, Nitric Oxide and Nitrogen Dioxide in Different Environments of India. J Earth Sci Climat Change1:102. doi:10.4172/2157-7617.1000102
Copyright: © 2010 Sharma SK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Mixing ratios of ambient NH3, NO and NO2 were measured over three different environments viz Delhi, Dibrugarh and Thiruvananthapuram during 2009-10 to study their diurnal variations, concentration and source strength. The average mixing ratio of NH3 over Delhi, Dibrugarh and Thiruvananthapuram were recorded as 13.24 ± 0.39, 13.46 ± 2.52 and 12.65 ± 1.51 ppb respectively. The average mixing ratio of NO2 was recorded as 12.69 ± 0.39 with maxima of 20.22 ppb and minima of 0.75 ppb over Delhi whereas, the mixing ratio of ambient NO2 ranges from 0.65 to 3.65 ppb and 0.83 to 3.02 over Dibrugarh and Thiruvananthapuram respectively. The mixing ratio of NO and NO2 varying significantly at all the three locations except NH3 might be due to source strength and meteorological conditions of the locations. Result reveals that the mixing ratio of ambient NH3 is positively correlated with ambient temperature (r2 = 0.872) and NO2 (r2 = 0.975) over Delhi whereas non-significant at other locations.


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