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JSIR Vol.71 [2012] >
JSIR Vol.71(05) [May 2012] >
| Title: | Measurement of NH3, NO, NO2 and related particulates at urban sites of Indo Gangetic Plain (IGP) of India |
| Authors: | Sharma, S K
Saxena, M
Saud, T
Korpole, S
Mandal, T K |
| Keywords: | Ambient NH3
NO
NO2
PM10
Chemiluminescence method
Meteorological parameters |
| Issue Date: | May-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents variability and concentration of
ambient NH3, NO and NO2 along with particulate matter (PM10)
at urban sites of Chandigarh
and Delhi of IGP of India (Dec 2010 - Mar 2011). Concentration of NH3
was found as follows: Chandigarh, 0.72 - 22.81
(av 5.17 ± 0.92 μg m-3); and Delhi,
av 8.54 ± 0.72 μg m-3. Concentration of ambient NO (av 13.13 ± 1.50
μg m-3) and NO2 (av 5.92 ± 0.38 μg m-3) were
recorded over Chandigarh.
NH4 + concentration were found as follows: Chandigarh,
2.60 - 4.39 (av 3.41 ± 0.78 μg m-3); and Delhi, 6.61 - 14.6 (av 9.91 ± 3.77 μg m-3).
Concentration of NH3 was significantly
correlated with NH4 + at both of the
locations (r2= 0.87 and r2 = 0.96). NH3/
NH4 + ratios were: Delhi,
0.59 - 1.75 (av 0.86); and
Chandigarh, 0.28 - 5.19. A good correlation of SO4 2-
and NO3 - with NH4 + over Delhi indicates formation
of aerosol. Similar correlations were recorded over Chandigarh. |
| Page(s): | 360-362 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(05) [May 2012]
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