A study of pollutant concentration variability in an urban street under low wind speeds
The short time‐scale variability in pollutant concentrations in an urban street under very low wind speed conditions and short source–receptor distance has been investigated using the inert tracer sulfur hexafluoride (SF6) as a continuous point‐source (release times ≥ 5 min), and fast detection using separation by gas chromatography coupled with a μ‐electron capture detector (ECD). The results are complex but can be broadly interpreted in terms of horizontal wind speed and direction coherence. Comparisons with a simple dispersion model suggest that observed time‐averaged maximum concentrations approach predicted values, whilst instantaneous maximum concentrations vary greatly and would therefore be difficult to predict.
2008
2019-07-17 08:02:48
1033
dispersion, tracer, intermittency
r6
Damien
Martin
70
Catheryn S
Price
70
Iain R.
White
70
Graham
Nickless
70
Adrian
Dobre
70
Dudley E
Shallcross
70
COBISS_ID
3
5415931
DOI
15
10.1002/asl.184
NUK URN
18
URN:SI:UNG:REP:49EX1AEC
RAZ_Martin_Damien_i2008.pdf
296626
Predstavitvena datoteka
2019-07-17 10:37:52
0
Izvorni URL
2019-07-17 08:06:01