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

Lubbo

ck

Wichi

ta F

alls

Fort W

orth

Dalla

s

Karna

ck

El Pas

o

Brewst

er C

ount

y

Ode

ssa

Wac

o

Beaum

ont

Austin

Hou

ston

Galve

ston

San A

nton

io

Corpu

s Chr

isti

Browns

ville

Nue

vo L

ared

o0

500000

1000000

1500000

2000000

2500000

0

20

40

60

80

100

120

Population

Days over limit

Popula

tion

Days

Over

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 2.5

Temperature

PM

2.5

Concentr

ati

on

(ug/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

0

10

20

30

40

50

60

70

80

90

100

PM

2.5

Concentr

ati

on

(ug/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

Concentr

ati

on

(ug/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-110

5

10

15

20

25

30

35

40

45

0

0.5

1

1.5

2

2.5

3

PM 2.5

Precipitation

PM

2.5

Concentr

ati

on

(ug/m

3)

Pre

cip

itati

on (

inch/d

ay)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

Concentr

ati

on

(ug/m

3)

Pre

cip

itati

on (

inch/d

ay)

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

Concentr

ati

on

(ug/m

3)

Pre

cip

itati

on (

inch/d

ay)

 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