Polyurethane foam (PUF) disks passive air samplers: Wind effect on sampling rates

Levels and Vertical Distributions of PCBs, PBDEs, and OCPs in the Atmospheric Boundary Layer: Observation from the Beijing 325-m Meteorological Tower

“…However, the wind speed effect on the sampling rate in the present study should be taken into account because the wind speed at each height varied greatly and increased sharply from 0.8 m s -1 at 15 to 5.8 m s -1 at 320 m. Figure 2a shows the dependence of the PRC-calibrated sampling rate on wind speed. Uptake rates increased sharply and showed an exponential correlation with wind speed (R 2 ) 0.57, P ) 0.05 in spring; R 2 ) 0.81, P < 0.01 in summer), which is consistent with results from laboratory and wind tunnel experiments (18,19). For instance, Tuduri et al (19) reported that PUF-based sampling rates showed strong wind dependence and increased sharply for indoor air velocities greater than 1.0 m s -1 .…”

“…Uptake rates increased sharply and showed an exponential correlation with wind speed (R 2 ) 0.57, P ) 0.05 in spring; R 2 ) 0.81, P < 0.01 in summer), which is consistent with results from laboratory and wind tunnel experiments (18,19). For instance, Tuduri et al (19) reported that PUF-based sampling rates showed strong wind dependence and increased sharply for indoor air velocities greater than 1.0 m s -1 .…”

“…Wind tunnel experiments demonstrated that sampler devices could significantly dampen the wind speed effect under ambient conditions (18,19). However, the wind speed effect on the sampling rate in the present study should be taken into account because the wind speed at each height varied greatly and increased sharply from 0.8 m s -1 at 15 to 5.8 m s -1 at 320 m. Figure 2a shows the dependence of the PRC-calibrated sampling rate on wind speed.…”

Improved correction method for using passive air samplers to assess the distribution of PCNs in the Dongjiang River basin of the Pearl River Delta, South China

“…Previous studies have revealed that wind speed can significantly affect the sampling rate, although PUF disk is usually deployed in protective chambers to dampen the effect of wind. Tuduri et al (2006) suggested that the uptake rate increased sharply with the wind speed >3.5 m s À1 . Klanova et al (2008) found that sampling rates increased by a factor of approximately 2 with a wind speed range of 1.5e5.5 m s À1 .…”

Study of PCBs and PBDEs in King George Island, Antarctica, using PUF passive air sampling

“…The measured air concentrations of PCBs are summarized in Table 1. The uptake rate of passive air sampler has previously been found to mainly be controlled by wind speed (Tuduri et al, 2006). We used the same sampling rate of 14 m À3 day À1 as in our previous study (Li et al, 2009) for calculating the air concentrations of PCBs and PBDEs in the Antarctic air, as similar wind speeds were measured in both studies.…”