Table 2 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) V1 | Atmospheric pressure measured on site (mbar) | Atmospheric pressure in mm of mercury (mbar × 0.75) P1 | Average temperature of the sampling site (°C) | Average temperature of the sampling site (K) T1 | Volume of air processed through HVS at STP (m3) [V HVS ]* |
|---|---|---|---|---|---|---|---|---|---|---|---|
Heavy traffic site; Ashram zone (S-1) | 31-1-08 | 9.10 am | 5.30 pm | 1.1 | 500 | 550 | 994.2 | 745.65 | 25.5 | 298.5 | 493.52 |
Industrial site; Azadpur zone (S-2); | 1-2-08 | 10.0 am | 5.00 pm | 1.1 | 420 | 462 | 995.2 | 746.40 | 25.5 | 298.5 | 414.97 |
Densely populated + Traffic site Loni Road (S-3); | 2-2-08 | 9.45 am | 5.30 pm | 1.1 | 465 | 511.5 | 993.6 | 745.20 | 26.5 | 299.5 | 457.16 |
Ambient site Pitampura zone (S-4); | 3-2-08 | 9.45 am | 5.30 pm | 1.1 | 465 | 511.5 | 992.5 | 744.37 | 26.5 | 299.5 | 456.66 |
Traffic zone; Highway No. 56 (S-5); | 4-2-08 | 10.30 am | 6.30 pm | 1.1 | 480 | 528 | 995.5 | 746.63 | 27.5 | 300.5 | 471.24 |
Industrial site; Nariana zone (S-6) | 5-2-08 | 9.15 am | 6.00 pm | 1.1 | 425 | 467.5 | 996.3 | 747.22 | 27.5 | 300.5 | 417.58 |
Mixed site; NPL zone (S-7) | 6-2-08 | 10.0 am | 4.40 pm | 1.1 | 400 | 440 | 992.8 | 744.60 | 27.5 | 300.5 | 391.63 |