air toxics monitoring results in the houston-galveston area
Post on 12-Jan-2016
28 Views
Preview:
DESCRIPTION
TRANSCRIPT
Air Toxics Monitoring Results in the
Houston-Galveston Area
David Brymer, Texas Commission on Environmental Quality
Top 20 Compounds (by annual average concentration) during 2004
from Houston Area
0
12
3
4
56
7
89
10
Mea
n pp
bv
Annual Average CATMN 24-Hour Benzene Levels Monitored at Houston Area Sites in 2004
00.20.40.60.8
1
1.21.41.61.8
2
Lync
hbur
gF
erry
Gal
ena
Par
k
Tex
as C
ity-
Bal
l Par
k
Tex
as C
ity-
Nes
sler
Poo
l
Milb
y P
ark
Clin
ton
Driv
e
HR
M-3
Had
en R
oad
Sho
re A
cres
Cha
nnel
view
Dee
r P
ark
Tom
ball
Bay
tow
n
Ald
ine
Bay
land
Par
k
Gal
vest
onA
irpor
t
pp
bv Annual ESL
Is Benzene Trending Up or Down at Houston Area Sites ?
Site _DEPVAR__RMSE_Intercept Slope (Date) min_date max_date N_dateTexas City-Ball Park Benzene_ppbv0.487 0.000042 11/24/1997 3/17/2005 132Galveston Airport Benzene_ppbv0.117 0.000020 11/23/1996 3/11/2005 70Texas City-Nessler Pool Benzene_ppbv3.771 -0.000193 12/2/1992 3/5/2005 224Aldine Benzene_ppbv1.584 -0.000054 11/17/1995 3/29/2005 269Channelview Benzene_ppbv2.801 -0.000125 12/8/1992 3/29/2005 431Tomball Benzene_ppbv-0.432 0.000071 5/17/1998 3/5/2005 53Bayland Park Benzene_ppbv2.047 -0.000090 4/23/1998 3/5/2005 119Galena Park Benzene_ppbv-0.461 0.000142 11/6/1997 3/29/2005 317Baytown Benzene_ppbv0.809 -0.000010 8/15/1998 3/23/2005 169Shore Acres Benzene_ppbv-0.827 0.000152 11/25/1998 3/23/2005 122Milby Park Benzene_ppbv2.561 -0.000116 4/12/1999 2/3/2005 232HRM-3 Haden Road Benzene_ppbv6.433 -0.000361 12/26/1992 3/23/2005 447Clinton Drive Benzene_ppbv4.795 -0.000256 3/14/1993 3/23/2005 447Deer Park Benzene_ppbv1.474 -0.000038 12/11/1996 3/11/2005 234
Least Squares Regression Model CATMN 24-Hour Benzene
Least Squares Plot of CATMN 24-Hour Benzene Levels at Clinton Drive
Annual Average CATMN 24-Hour 1,3-Butadiene Levels Monitored at Houston
Area Sites in 2004
0
1
2
3
4
5
6
Milb
y P
ark
Clin
ton
Driv
e
Gal
ena
Par
k
HR
M-3
Had
en R
oad
Cha
nnel
view
Lync
hbur
g F
erry
Dee
r P
ark
Ald
ine
Tex
as C
ity-B
all P
ark
Bay
land
Par
k
Sho
re A
cres
Bay
tow
n
Tex
as C
ity-N
essl
er P
ool
Gal
vest
on A
irpor
t
Tom
ball
pp
bv
Current ESL
Is 1,3-Butadiene Trending Up or Down at Houston Area Sites?
Site Intercept Slope (Date) min_date max_date N_dateTexas City-Ball Park 2.239 -0.000117 11/24/1997 3/17/2005 132Galveston Airport 0.129 0.000015 11/23/1996 3/11/2005 70Texas City-Nessler Pool 5.516 -0.000347 12/2/1992 3/5/2005 224Aldine 0.993 -0.000047 11/17/1995 3/29/2005 269Channelview 1.144 -0.000038 12/8/1992 3/29/2005 431Tomball 2.228 -0.000132 5/17/1998 3/5/2005 53Bayland Park 1.103 -0.000058 4/23/1998 3/5/2005 119Galena Park 1.680 -0.000072 11/6/1997 3/29/2005 317Baytown 2.270 -0.000125 8/15/1998 3/23/2005 169Shore Acres 1.232 -0.000057 11/25/1998 3/23/2005 122Milby Park 8.303 -0.000280 4/12/1999 2/3/2005 232HRM-3 Haden Road 2.570 -0.000135 12/26/1992 3/23/2005 447Clinton Drive 2.430 -0.000119 3/14/1993 3/23/2005 447Deer Park 1.216 -0.000056 12/11/1996 3/11/2005 234
Least Squares Regression Model of CATMN 24-Hour 1,3 Butadiene
Least Squares Plot of CATMN 24-Hour 1,3-Butadiene Levels at Clinton Drive
Galveston Airport CATMN Annual Average Trends for Benzene and 1,3-Butadiene
from 1997 - 2005
00.050.1
0.150.2
0.250.3
0.35
1997 1998 1999 2000 2001 2002 2003 2004 2005
pp
bv
benzene 1,3-butadiene
n=15
Considered Background for Houston Area
Galena Park CATMN Annual Average Trends for Benzene and
1,3-Butadiene from 1998 - 2005
0
0.5
1
1.5
2
1998 1999 2000 2001 2002 2003 2004 2005
pp
bv
benzene 1,3-butadiene
Benzene annual ESL
Annual Average and Highest CATMN 24-Hour 1,3-Butadiene Levels
Monitored at Milby Park 1999-2004
3.5 4.42.4 2.1 3.2 4.0
31.6 30.9
12.314.5
17.6
37.4
8.8
20.5
10.3 11.0
15.1
23.4
0
5
10
15
20
25
30
35
40
Annual Average Highest 24-Hour 2nd Highest 24-Hour
Con
cen
trat
ion
(p
pb
v)
Current Annual ESL
1999 2000 2001 2002 2003 2004
How Representative are CATMN Data (every 6th day sampling) of an Annual Average?
1,3 Butadiene • AutoGC (6694 observations) = 0.62 ppbv• CATMN (59 observations) = 0.57 ppbv
Benzene• AutoGC (6815 observations) = 0.67 ppbv• CATMN (59 observations) = 0.71 ppbv
Comparison of Clinton Drive AutoGC and CATMN 2004 Annual Averages for Benzene and 1,3-Butadiene
2004 Annual Average 24- hr Formaldehyde Levels in Houston
Area
00.5
11.5
22.5
33.5
44.5
5
Deer Park Clinton Drive* Channelview Karnack
Mea
n p
pb
v
Rural Tx site
•Clinton Drive data invalidated due to sampler problem
Av. US Site Conc. = 3.5 ppbV
Deer Park Annual Average Trends for Formaldehyde
from 2000 - 2004
0
1
2
3
4
5
6
7
8
9
2000 2001 2002 2003 2004
Mea
n p
pb
v
n=64
n=67
n=59
n=56
n=58
2003 US Average Site Concentration
2004 Annual Average 24 hr Values (ug/m3) of Chromium and Arsenic at NATTS sites
0
0.002
0.004
0.006
0.008
0.01
0.012A
rsen
icK
arna
ck
Ars
enic
Dee
r P
ark
Chr
omiu
mD
eer
Par
k
Chr
omiu
mK
arna
ck
Chromium ESL=0.1; Arsenic & Chrome VI ESL=0.01
Deer Park Annual Average Trends for Chromium PM2.5 from 2000 - 2004
0
0.0002
0.0004
0.0006
0.0008
0.001
0.0012
2000 2001 2002 2003 2004
Mea
n u
g/m
3
n=137
n=151
n=126 n=214n=195
Chromium ESL=0.1; Chrome VI ESL=0.01
Deer Park Annual Average Trends for Arsenic PM2.5 from 2000 - 2004
0
0.002
0.004
0.006
0.008
0.01
0.012
2000 2001 2002 2003 2004
Me
an
ug
/m3
n=137 n=151 n=126n=214
n=195
Arsenic (inorganic) ESL
top related