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Atmospheric fine and coarse mode aerosols at different environments of India and the Bay of Bengal during winter-2014: Implications of a coordinated campaign

DRS at CSIR-National Institute of Oceanography

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Title Atmospheric fine and coarse mode aerosols at different environments of India and the Bay of Bengal during winter-2014: Implications of a coordinated campaign
 
Creator Sen, A.
Ahammed, Y.N.
Arya, B.C.
Banerjee, T.
Begam, R.G.
Baruah, B.P.
Chatterjee, A.
Choudhuri, A.K.
Dhir, A.
Das, T.
Dhyani, P.P.
Deb, N.C.
Gadi, R.
Gauns, M.
Ghosh, S.K.
Gupta, A.
Sharma, K.C.
Khan, A.H.
Kumari, K.M.
Kumar, M.
Kumar, A.
Kuniyal, J.C.
Lakhani, A.
Meena, R.K.
Mahapatra, P.S.
Naqvi, S.W.A.
Singh, D.P.
Pal, S.
Panda, S.
Rohtash
Saikia, J.
Saikia, P.
Sharma, A.
Sharma, P.
Saxena, M.
Shenoy, D.M.
Vachaspati, C.V.
Sharma, S.K.
Mandal, T.K.
 
Subject OCEANOGRAPHY AND LIMNOLOGY
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
AQUATIC POLLUTION
METEOROLOGY AND CLIMATOLOGY
METEOROLOGY AND CLIMATOLOGY
 
Description In this paper, we present mass concentrations of particulate matter [PM2.5, PM10 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 (PM2.5, PM10 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 PM2.5 (187.8 ± 36.5 µg m-3, range 125.6–256.2 µg m-3), PM10 (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 PM2.5 (average 41.3 ± 11.9 µg m-3; range 15.0–54.4 µg m-3), PM10 (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 PM2.5/PM10 ratio was recorded at Delhi (0.87). The PM2.5/PM10 ratio over BoB (0.77) was found to be quite high and comparable to Varanasi (0.80) and Agra (0.79)
 
Date 2016-03-10T10:54:00Z
2016-03-10T10:54:00Z
2014
 
Type Journal Article
 
Identifier MAPAN-Journal of Metrology Society of India, vol.29(4); 2014; 273-284
http://drs.nio.org/drs/handle/2264/4933
 
Language en
 
Rights Copyright [2014] Metrology Society of India. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Metrology Society of India