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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sen, A. Ahammed, Y. Nazeer Arya, B. C. Banerjee, Tirthankar Reshma Begam, G. Baruah, B. P. Chatterjee, A. Choudhuri, Anil K. Dhir, Amit Das, Trupti Dhyani, Pitamber Prasad Deb, N. C. Gadi, Ranu Gauns, Mangesh Ghosh, Sanjay Kumar Gupta, Abhishek Sharma, K. C. Khan, A. H. Kumari, K. Maharaj Kumar, Manish Kumar, Arun Kuniyal, Jagdish Chandra Lakhani, Anita Meena, R. K. Mahapatra, P. S. Naqvi, S. W. A. Singh, Dharam Pal Pal, S. Panda, Sipra Saikia, J. Saikia, P. Sharma, A. Sharma, Priyanka Saxena, M. Shenoy, D. M. Viswanatha Vachaspati, C. Sharma, S. K. Mandal, T. K. |
| Copyright Year | 2014 |
| Abstract | In this paper, we present mass concentrations of particulate matter [PM$_{2.5}$, PM$_{10}$ size fractions and total suspended particulates (TSP)] measured simultaneously over land stations (Kullu, Patiala, Delhi, Ajmer, Agra, Lucknow, Varanasi, Giridih, Kolkata, Darjeeling, Jorhat, Itanagar, Imphal, Bhubaneswar, and Kadapa), mostly distributed across the Indo-Gangetic plain (IGP) of India as well as in the marine atmosphere over Bay of Bengal (BoB) in the period from 20 January to 3 February, 2014. The main objective of this study was to quantify the continental outflow of particulates (PM$_{2.5}$, PM$_{10}$ and TSP) from IGP and associated regions into the BoB along with low level north-east wind flow during winter monsoon period. The present study provides a glimpse of the aerosol loading over the IGP region. During this campaign, the highest average PM$_{2.5}$ (187.8 ± 36.5 µg m$^{−3}$, range 125.6–256.2 µg m$^{−3}$), PM$_{10}$ (272.6 ± 102.9 µg m$^{−3}$, range 147.6–520.1 µg m$^{−3}$) and TSP (325.0 ± 71.5 µg m$^{−3}$, range 220.4–536.6 µg m$^{−3}$) mass concentrations were recorded at Varanasi, Kolkata and Lucknow over middle and lower IGP regions. The PM$_{2.5}$ (average 41.3 ± 11.9 µg m$^{−3}$; range 15.0–54.4 µg m$^{−3}$), PM$_{10}$ (average 53.9 ± 18.9 µg m$^{−3}$; range 30.1–82.1 µg m$^{−3}$) and TSP (average 78.8 ± 29.7 µg m$^{−3}$; range 49.1–184.5 µg m$^{−3}$) loading over BoB were found to be comparable to land stations and suggests possible continental outflow. Over the continental region, the highest PM$_{2.5}$/PM$_{10}$ ratio was recorded at Delhi (0.87). The PM$_{2.5}$/PM$_{10}$ ratio over BoB (0.77) was found to be quite high and comparable to Varanasi (0.80) and Agra (0.79). |
| Starting Page | 273 |
| Ending Page | 284 |
| Page Count | 12 |
| File Format | |
| ISSN | 09703950 |
| Journal | MAPAN |
| Volume Number | 29 |
| Issue Number | 4 |
| e-ISSN | 09749853 |
| Language | English |
| Publisher | Springer India |
| Publisher Date | 2014-08-26 |
| Publisher Institution | Metrology Society of India |
| Publisher Place | India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | PM$_{2.5}$ PM$_{10}$ TSP and Bay of Bengal Measurement Science and Instrumentation Theoretical, Mathematical and Computational Physics Mathematical Methods in Physics Numerical and Computational Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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