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Table 7 Uncertainty due to high volume sampler (V HVS ) for measuring volume of air at STP

From: Quantifying uncertainty in the measurement of arsenic in suspended particulate matter by Atomic Absorption Spectrometry with hydride generator

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
  1. *For the calculation of air processed through HVS the flow rate of HVS was taken 1.1 m3/minute, while the temperature was taken 25.5 in case of S-1, S-2 and 26.5°C in case of S-3, S-4 and 27.5 in case of S-5 to S-7.