EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ...

Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi:
Table 4.19: Ambient Air Quality around Site I & Site IV
Page No.98
Station SPM, µg/m 3
Sox, µg/m 3
NOx, µg/m 3
Min Max Avg Min Max Avg Min Max Avg
Bawana 129 532 322 13.4 30.5 20.8 37 49.7 42.9
Narela 121 371 221 6.8 28.4 16 15.1 44.8 33.6
Ghoga 157 421 315 6.8 16.8 10.7 6.8 38.4 20.3
Holambikalan 126 428 237 6.8 14.8 10.7 7.5 26.4 18.3
Source: Project titled REIA of proposed new Indl. Areas in Delhi, by CES for DSIDC.
Primary Data
Site –I : Bawana industry relocation site
The ambient air quality and noise level was monitored at the site on 24 hourly basis
continuosly for 3 days. Photo plate 15 shows the ambient air monitoring set up at
the proposed site. The results of ambient air quality and noise monitoring at the site
are given in Table 4.20 & 4.21
Table 4.20 : Ambient Air Quality Monitoring Results at Bawana Industry
Relocation Site
Date Time period Sox ,
ug /m 3
06/02/02
-
07/02/02
07/02/02
-
08/02/02
08/02/02
-
09/02/02
SOx,
(24-hr
avg.)
NOx ,
ug /m 3 NOx, (24-
hr avg.)
*SPM, ug/m 3
(24 - hr avg.)
1400 - 2200 7.6 8 69 59 1000
2200 - 0600 7.3 55
0600 - 1400 8.7 54
1400 - 2200 8.2 7.7 38 42 600
2200 - 0600 7.1 50
0600 - 1400 7.9 39
1400 - 2200 6.1 6 40 34 400
2200 - 0600 5.5 32
0600 - 1400 6 29
The high SPM concentration is due to the presence of a rice mill adjacent to the
proposed site in Bawana industry relocation site. The SOx and NOx concentration is
well within the prescribed standards.
Table 4.21: Noise level monitored near proposed site in Bawana
Time Observed Leq, Limits in residential Limits in Industrial
dB(A)
area
area
Day (0600 - 2100) 52 55 75
Night (2100 - 0600) 40 45 70
Environment Division, National Productivity Council, New Delhi
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