Mapping PM 2.5 Air Pollution in Texas
Zhipeng XingGIS 2013 Fall
Environmental and Water Resources Engineering
PM 2.5Particulate Matter 2.5 um ~ 10 umReach into lungs
IrritationCoughing/sneezingAsthma/heart diseaseReduced visibility
SourcesAutomobile exhaustsGas/droplets reactionCooking/smoking
EPA limit: annual mean 12 μg/m3
Data SourceTCEQ
Texas PM 2.5 Monthly 2013
Texas PM 2.5 with Population
Amar
illo
Lubb
ock
Wichita
Falls
Fort
Worth
Dallas
Karna
ck
El Pas
o
Brewste
r Cou
nty
Odess
aWac
o
Beaum
ont
Austi
n
Housto
n
Galves
ton
San A
ntonio
Corpu
s Chr
isti
Browns
ville
Nuevo
Lared
o0
500000
1000000
1500000
2000000
2500000
0
20
40
60
80
100
120 Population
Days over limit
Popu
lati
on
Day
s O
ver
Lim
it
San Antonio
Jan-11 Jan-11 Feb-11 Mar-11 Apr-11 May-11 May-11 Jun-11 Jul-11 Aug-11 Sep-11 Oct-11 Oct-11 Nov-11 Dec-110
5
10
15
20
25
30
35
40
45
0
10
20
30
40
50
60
70
80
90
100PM 2.5Temperature
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Tem
pera
ture
(F°
)
Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Oct-12 Nov-12 Dec-120
5
10
15
20
25
0102030405060708090100
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Tem
pera
ture
(F°
)
Dec-12 Jan-13 Feb-13 Mar-13 Apr-13 May-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 Oct-13 Nov-13 Dec-130
5
10
15
20
25
30
35
0102030405060708090100
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Tem
pera
ture
(F°
)
CPS Pecan Valley
Days above EPA limit
2011 2012 2013January 1 7 2February 6 1 1March 12 3 3April 21 10 9May 18 7 13June 3 8 13July 8 11 13August 7 8 8September 5 1 5October 0 0 3November 1 4 4December 6 3 0
Jan-11 Jan-11 Feb-11 Mar-11 Apr-11 May-11 May-11 Jun-11 Jul-11 Aug-11 Sep-11 Oct-11 Oct-11 Nov-11 Dec-1105
1015202530354045
0
0.5
1
1.5
2
2.5
3
PM 2.5Precipitation
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Prec
ipit
atio
n (i
nch/
day)CPS Pecan Valley
Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Oct-12 Oct-12 Nov-12 Dec-120
5
10
15
20
25
0
0.5
1
1.5
2
2.5
3
3.5
4
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Prec
ipit
atio
n (i
nch/
day)
Dec-12 Jan-13 Feb-13 Mar-13 Apr-13 May-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 Oct-13 Nov-13 Dec-130
5
10
15
20
25
30
35
0
0.5
1
1.5
2
2.5
3
PM 2
.5 C
once
ntra
tion
(u
g/m
3)
Prec
ipit
atio
n (i
nch/
day)
Rain Times Better Times Percent
2011 47 33 70%
2012 79 58 73%
2013 87 61 70%
Future WorkSame analysis for the other siteFINISH THE REPORT!!!
ConclusionHigh concentration at high population/trafficTemperature & PrecipitationGOOD NEWS! - No serious PM 2.5 pollution
in Texas
AcknowledgementDr. Maidment
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