STMPR Item # 5 

- 2008 PM2.5 

Quality Characterization

January 19, 2012
PM2.5 Monitoring Network

- Speciation Sites

Carson
Initial Steps to Determine Future

24-Hour Average PM2.5 Design V

• Calculation of future year PM2.5 24-hour ave

design value stepwise process

• Assume 5-year centered design value calcula

(2006 

– 2010) 

• Determine representative quarterly 98th perc

“maximum” values

• Apply SMAT with “Sandwich” to obtain speci

percentage contribution factors

• Calculate quarterly average speciated compo
PM2.5 24-Hour National 98th Percent

Design Values (μg/m

3

)

Year CELA - Central LA RIVR - Rubidou

2006 38.9 54.42007 51.2 54.32008 40.3 41.02009 33.9 39.62010 31.3 32.0
Maximum Quarterly PM2.5 Values (μ

(Less than or equal to the annual 98th perce

CELA- Central LA

2006 2007 2008 2009 2010

Quarter1 38.4 51.2 38.1 34 31.3Quarter 2 34 44.3 24.8 28.3 26.9

RIVR-Riverside Rubid

2006 2007 20

Quarter1 52 54.3 4Quarter 2 53.7 53.5 3

Quarter 3 32.7 44.8 40.4 33.4 21 Quarter 3 39.3 48.9 Quarter 4 35.1 47.4 39.9 28.6 30.5

Quarter 3 39.3 48.9 Quarter 4 54.4 52.1 
Speciated/Sandwich 2008 CELA P

(98th percentile each quarter –top 3 value

NH4

13%

NO3

26%

OC

EC

10%

Na 

2%

Cl

2%

Metals

4%

Blank

2%

Water

9%

NH4

10%

N

15

SO

EC

13%

Na 

3%

Cl

6%

Metals

6%

Blank

3% Water

8%

SO4

15%

OC

17%

CELA Top 3

1st Quarter

NH4

7%

NO3

12%

SO4

18%

OC

35%

EC

6%

Na 

1%

Cl

2%

Metals

9%

Blank

2% Water 8%

CELA Top 3

3rd Quarter

16

OC

20%

13%

CELA Top 3

2nd Quarter

NH4

15%

N

2

SO4

15%

OC

11%

EC

11%

Na 

1%

Cl

1%

Metals

7%

Blank

1%

Water

10%

CELA Top 3

4th Quarter
Speciated/Sandwich 2008 CELA P

(quarterly averages) 

NH4

8%

NO3

20%

SO4

EC

16%

Na 

3%

Cl

2%

Metals

4%

Blank

3% Water 6%

NH4

10%

N

15

SO

EC

13%

Na 

3%

Cl

6%

Metals

6%

Blank

3% Water

8%

SO4

OC 10% CELA 28%

1st Quarter

16

OC

20%

13%

CELA

2nd Quarter

NH4

12%

NO3

14%

SO4

OC 21%

17%

EC

9%

Na 

2%

Cl

3%

Metals

10%

Blank

2%

Water

10%

CELA 

3rd Quarter

NH4

10%

N

2

SO4

OC 13%

20%

EC

14%

Na 

2%

Cl

1%

Metals

9%

Blank

3%

Water

8%

CELA 

4th Quarter
Speciated/Sandwich 2008 RIVR P

(98th percentile each quarter –top 3 value

NH4

14%

NO3

OC

15%

EC

8%

Na 

2%

Cl

2%

Metals

3%

Blank

1%

Water

9%

NH4

16%

N

2

OC

EC

9%

Na 

3%

Cl

2%

Metals

5%

Blank

2%

Water

9%

NH4

11%

NO3

23%

SO4

16%

OC

21%

EC

8%

Na 

2%

Cl

2%

Metals

6%

Blank

2% Water

9%

RIVR Top 3

3rd Quarter

NO3

38%

SO4

8%

15%

RIVR Top 3

1st Quarter

NH4

14%

NO

33

SO4

6%

OC

17%

EC

13%

Na 

1%

Cl

1%

Metals

6%

Blank

1%

Water

8%

RIVR Top 3

4th Quarter

2

SO4

13%

OC

15%

RIVR Top 3

2nd Quarter
Speciated/Sandwich 2008 RIVR P

(quarterly averages) 

NH4

12%

NO3

33%

EC

14%

Na 

3%

Cl

2%

Metals

3% Blank

3% Water

8%

NH4

12%

OC

EC

9%

Na 

4%

Cl

3%

Metals

6%

Blank

3%

Water

9%

33%

SO4

8%

OC

14% RIVR 

1st Quarter

SO4

15%

OC

15% RIVR 

2nd Quarter

NH4

14%

NO3

25%

SO4

18% OC

10%

EC

9%

Na 

2%

Cl

2%

Metals

8%

Blank

2%

Water

10%

RIVR 

3rd Quarter

NH4

11%

SO4

9%

OC

20%

EC

13%

Na 

1%

Cl

1%

Metals

7%

Blank

3% Water

7%

RIVR

4th Quarter 
Speciated/Sandwich 2008 PM

(98th percentile quarter – top 3 vs quarterly av

NH4

10%

NO3

17%

SO4

EC

13%

Na 

2%

Cl

3%

Metals

8%

Blank

3%

Water

8%

NH4

11%

EC

11%

Na 

2%

Cl

2%

Metals

6%

Blank

2% Water

8%

SO4

15% OC

21%

13%

CELA 

Annual

NH4

12%

NO3

21%

SO4

16%

OC

20%

EC

10%

Na 

1%

Cl

2%

Metals

7%

Blank

2% Water 9%

CELA Top 3

Annual

NH4

12%

SO4

12%

OC

14%

EC

11%

Na 

3%

Cl

2%

Metals

6%

Blank

3%

Water

9%

RIVR Top 3

Annual

SO4

12%

OC

20% RIVR 

Annual
Quarterly Species Composition Fa

CELA- Central LA

NH4 NO3 SO4 OC EC Na Cl Me

Quarter1 0.08 0.2 0.1 0.28 0.16 0.03 0.02 Quarter 2 0.1 0.16 0.17 0.2 0.14 0.03 0.06 

Quarter 3 0.12 0.15 0.21 0.17 0.09 0.02 0.03 Quarter 4 0.11 0.2 0.14 0.2 0.15 0.02 0.01 

RIVR-Riverside Rubidoux

NH4 NO3 SO4 OC EC Na Cl Me

Quarter 1 0.12 0.26 0.12 0.2 0.11 0.02 0.02 Quarter 2 0.12 0.25 0.15 0.15 0.1 0.04 0.03 Quarter 3 0.14 0.26 0.18 0.1 0.09 0.02 0.02 Quarter 4 0.1 0.3 0.1 0.2 0.1 0 0 
Qtr-1 NH4 NO3 SO4 OC EC Na Cl Metals W

2006 3.1 7.8 3.9 10.9 6.2 1.2 0.9 1.6 2007 4.2 10.4 5.2 14.6 8.3 1.5 1.3 2.2 2008 3.1 7.7 3.9 10.9 6.2 1.2 0.9 1.6 2009 2.8 6.9 3.5 9.7 5.5 1 0.8 1.5 2010 2.6 6.4 3.2 8.9 5.1 0.9 0.8 1.3 Qtr -2 NH4 NO3 SO4 OC EC Na Cl Metals W2006 3.5 5.4 5.7 6.8 4.6 1.1 1.9 2.1 2007 4.6 7 7.4 8.8 6 1.4 2.5 2.7 2008 2.6 3.9 4.1 5 3.4 0.8 1.4 1.5 2009 2.9 4.5 4.7 5.7 3.9 0.9 1.6 1.7 

CELA- Central LA (μg/m

3

)

Qtr -3 NH4 NO3 SO4 OC EC Na Cl Metals W2006 3.9 4.8 6.9 5.6 3.1 0.6 1.1 3.5 2007 5.3 6.6 9.4 7.7 4.2 0.8 1.5 4.8 2008 4.8 6 8.5 7 3.8 0.7 1.3 4.4 2009 3.5 6.8 4.5 6.8 5 0.7 0.5 3 2010 2.5 3.1 4.4 3.6 2 0.4 0.7 2.3 Qtr -4 NH4 NO3 SO4 OC EC Na Cl Metals W2006 3.7 7.2 4.8 7.2 5.2 0.7 0.5 3.1 2007 5 9.7 6.4 9.7 7 0.9 0.7 4.2 2008 4.2 8.2 5.4 8.1 5.9 0.8 0.6 3.6 2009 3 5.8 3.9 5.8 4.2 0.6 0.4 2.6 2010 3.2 6.2 4.1 6.2 4.5 0.6 0.5 2.7 2010 2.8 4.3 4.5 5.4 3.7 0.9 1.5 1.6 
Qtr-1 NH4 NO3 SO4 OC EC Na Cl Metals W

2006 6.4 13.7 6.2 10.6 5.7 1.2 1 3.2 2007 6.7 14.3 6.5 11.1 5.9 1.3 1.1 3.3 2008 5 10.6 4.8 8.2 4.4 0.9 0.8 2.5 2009 4.7 10.1 4.5 7.8 4.2 0.9 0.7 2.3 2010 3.8 8.2 3.7 6.4 3.4 0.7 0.6 1.9 Qtr -2 NH4 NO3 SO4 OC EC Na Cl Metals W2006 6.6 13.2 8.3 8.1 5.3 2 1.6 3.4 2007 6.6 13.1 8.3 8.1 5.3 2 1.6 3.4 2008 3.9 7.7 4.8 4.7 3.1 1.2 0.9 2 2009 4.5 9 5.7 5.5 3.6 1.4 1.1 2.4 

RIVR-Riverside Rubidoux (μg/m

3

)

Qtr -3 NH4 NO3 SO4 OC EC Na Cl Metals W2006 5.4 10.2 7.2 3.8 3.6 0.8 0.9 3.2 2007 6.8 12.7 8.9 4.7 4.5 1 1.1 4 2008 5.7 10.7 7.5 4 3.8 0.9 0.9 3.4 2009 4.1 10.5 3.2 7.3 4.9 0.5 0.4 2.7 2010 4.2 7.9 5.6 2.9 2.8 0.6 0.7 2.5 Qtr -4 NH4 NO3 SO4 OC EC Na Cl Metals W2006 6.2 15.7 4.8 10.9 7.3 0.8 0.6 4 2007 6 15.1 4.6 10.5 7 0.7 0.6 3.9 2008 4.6 11.6 3.5 8 5.4 0.6 0.5 3 2009 4.5 11.4 3.5 7.9 5.3 0.6 0.4 2.9 2010 3.7 9.3 2.8 6.4 4.3 0.5 0.4 2.4 2010 3.9 7.7 4.9 4.7 3.1 1.2 0.9 2 
Next Steps: Coming soon

• Run annual simulations to determine 

quarterly RRF’s 

• Reconstruct design values for speciated 

• Extrapolate results through Basin• Assess attainment/carrying capacity for 

and 2019