Table 7 Uncertainty due to high volume sampler (V HVS ) for measuring volume of air at STP
Name of the site | Date of Sampling | Sampling starting time | Sampling end time | Flow rate of air sampled through HVS (m3/min)* | Time (in min.) | Volume of air processed through HVS (m3) | Atmospheric pressure measured on site (mbar) | Atmospheric Pressure in mm of mercury (mbar × 0.75) | Temperature of the sampling Site (°C)* | Volume of air processed through HVS at STP (m3) |
|---|---|---|---|---|---|---|---|---|---|---|
Heavy traffic site; Ashram zone (S-1) | 31-1-08 | 9.10 am | 5.30 pm | 1.0 ± 0.2 | 500 | 550 | 994.2 ± 0.55 | 745.65 | 24 ± 3 | 493.52 |
Industrial site; Azadpur zone (S-2); | 1-2-08 | 10.0 am | 5.00 pm | 1.0 ± 0.2 | 420 | 462 | 995.2 ± 0.55 | 746.40 | 24 ± 3 | 414.97 |
Densely populated + Traffic site Loni Road (S-3); | 2-2-08 | 9.45 am | 5.30 pm | 1.0 ± 0.2 | 465 | 511.5 | 993.6 ± 0.55 | 745.20 | 25 ± 3 | 457.16 |
Ambient site Pitampura zone (S-4); | 3-2-08 | 9.45 am | 5.30 pm | 1.0 ± 0.2 | 465 | 511.5 | 992.5 ± 0.55 | 744.37 | 25 ± 3 | 456.65 |
Traffic zone; Highway No. 56 (S-5); | 4-2-08 | 10.30 am | 6.30 pm | 1.0 ± 0.2 | 480 | 528 | 995.5 ± 0.55 | 746.63 | 26 ± 3 | 471.24 |
Industrial site; Nariana zone (S-6) | 5-2-08 | 9.15 am | 6.00 pm | 1.0 ± 0.2 | 425 | 467.5 | 996.3 ± 0.55 | 747.22 | 26 ± 3 | 414.78 |
Mixed site; NPL zone (S-7) | 7-2-08 | 10.0 am | 4.40 pm | 1.0 ± 0.2 | 400 | 440 | 992.8 ± 0.55 | 744.60 | 26 ± 3 | 391.63 |