(BRAVO) Study: Final Report. - Desert Research Institute

Final Report — September 2004
6.E-10
5.E-10
Influence function (s/m3)
4.E-10
3.E-10
2.E-10
1.E-10
0.E+00
-1.E-10
9/17 9/22 9/27 10/2 10/7 10/12 10/17 10/22 10/27 11/1
Figure 5-21. Time series of influence functions at 6-hr sampling sites for the San Antonio
tracer, PDCB.
MONA
FTST
MARA
PRSG
BIBE
SNVI
7.E-10
6.E-10
Influence function (s/m3)
5.E-10
4.E-10
3.E-10
2.E-10
1.E-10
0.E+00
MONA
FTST
MARA
PRSG
BIBE
SNVI
-1.E-10
9/17 9/22 9/27 10/2 10/7 10/12 10/17 10/22 10/27 11/1
Figure 5-22. Time series of influence functions at 6-hr sampling sites for the Houston tracer,
PTCH.
The San Antonio tracer showed elevated concentrations at all 6-hour site for two
main periods, October 5-8, and October 11-16. Both of these periods corresponded at to high
sulfate concentrations for some of the days. A smaller, broader peak was evident at some
sites in late October.
The tracer released from Houston showed elevated levels at all sites for much of the
periods October 4-7, October 9-15, and October 24-26. The first two of these periods
corresponded to periods of high sulfate concentrations.
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