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Title: Measurements of formic and acetic acid levels in vapour phase at urban and semi-urban sites of Delhi
Authors: Jain, Monika
Kulshrestha, Umesh C
Sarkar, A K
Parashar, D C
Kumar, Ashok
Issue Date: Oct-1999
Publisher: NISCAIR-CSIR, India
Abstract: The vapour phase acetic and formic acid levels were measured at two different sites of Delhi. Mean formic and acetic acid levels were found to be 1.66±0.81 and 5.83±2.24 ppbv, respectively, at the urban site of Rohini, while they were 2.51 ±1.22 and 2.92±1.78 ppbv, respectively,  at National Physical Laboratory (NPL), a semi-urban site. Strong correlation between formic and acetic acids was observed at Rohini (correlation coefficient r=0.73) indicating similar source type for both the acids at this site, while at NPL, the correlation was very weak (r=0.19) indicating different sources of two acids.
Page(s): 240-243
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.28(5) [October 1999]

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