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Title: Influence of boundary layer dynamics on pollutant concentrations over urban region – A study using ground based measurements
Authors: Mahalakshmi, D V
Badarinath, K V S
Naidu, C V
Keywords: Ventilation coefficient
Atmospheric boundary layer (ABL) height
Pollutant concentration
Black carbon aerosol
Carbon monoxide aerosol
Ozone aerosol
Aerosol mass concentration
Issue Date: Jun-2011
Publisher: NISCAIR-CSIR, India
PACS No.: 92.60.Mt; 92.60.Sz
Abstract: Ventilation coefficient (VC) over urban area of Hyderabad, India during night-time in 2008 has been calculated using night-time mixed layer height with boundary layer lidar (BLL) and radiosonde data to investigate the influence of VC on pollutant concentration. Carbon monoxide (CO), ozone (O3) and black carbon (BC) aerosol mass concentrations in relation to mixed layer height and wind speed have been analysed for different seasons, viz. winter, pre-monsoon, monsoon and post-monsoon associated with boundary layer and ventilation coefficient (VC). The results of the study suggested that VC plays an important role in dispersing the pollutants.
Page(s): 147-152
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-105X (Online); 0367-8393 (Print)
Source:IJRSP Vol.40(3) [June 2011]

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