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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
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 (O<sub>3</sub>) 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.
Description: 147-152
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.40(3) [June 2011]

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