Get documents about "Demonstration of NOx Emission Controls for Gas Compressor Engines
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CRGAQS:
Revised CAMx 2004 Results
Presentation to the
Gorge Study Technical Team
By
ENVIRON International Corporation
May 2, 2007
V:\corporate\marketing\overview.ppt
Today’s Presentation
• Describe OR/WA emission changes
• Describe November 2004 met
changes
• Revised 2004 CAMx simulation
results
• Next Steps
V:\corporate\marketing\overview.ppt
Additional WA Funding
• 2004 and 2018 emission improvements
• 2004 November meteorological
improvements
• Rerun CAMx
– 2004 Base Case, August and November
episodes
– 2018 Future Case, August and November
episodes
– 2018 “What-if” scenarios
– 2004 and 2018 PSAT runs, both episodes
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OR/WA Emission Changes
• Reviewed/changed ammonia emissions:
– All CAFOs increased:
• x1.2 for OR, x1.4 for WA
– Three Mile Canyon near Boardman increased x4.3
• head count and “flush” operations identified
– Certain fertilizer application types increased
• x3.3 for anhydrous and aqueous
• x2.7 for nitrogen solution
– Checked monthly fertilizer allocation by state (but not
changed)
– No 2018 WRAP ammonia – WRAP used 2002 numbers
for 2018
• We used 2002 WRAP outside OR/WA for 2018
• We used 2004 OR/WA for 2018
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OR/WA Emission Changes
• Reviewed/changed residential wood
combustion:
– ODEQ revealed x2 over estimate from surveys
– WRAP 2018 RWC indicates x7 growth for OR,
x3 growth for WA, from our 2004 RWC
– WRAP emissions contractor (ERG) stated a 4%
growth (population-based)
– We reduced 2004 RWC by 50% and grew by
4% for 2018
– Monthly profiles differ in 2004 from 2018 (but
not changed)
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OR/WA Emission Changes
• Reviewed wind-blown dust
methodology
– Found some minor issues, but did not
change given very small component of
overall PM
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November Met Changes
• Background
– August is performing OK, but November
lacks secondary aerosols
• Lack of fog reduces aqueous SO4 production
• Low humidity reduces NO3 condensation
• Hypothesis: If we can get the fog right,
– Aqueous SO4 production can occur
– High humidity will help increase
condensation of ammonium nitrate
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November Met Changes
• Approach
1) Gather satellite imagery for the period (provided by Paul)
2) Calculate MM5 average fog water content occurring over
the episode -- use as the default water content to fill in the
fog “holes”
3) Evaluate imagery against CAMx cloud plots to identify
onset of fog and spatial extent – use terrain fields to
define valleys and basins where the fog consistently
forms and lingers
4) Use results from (2) and (3) to fill in fog in CAMx cloud
field
5) Modify CAMx chemistry routine to ensure that relative
humidity is 100% for a cloudy grid cell
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August 2004 Results
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August 2004 Results
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August 2004 Results
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August 2004 Results
Run 8 Run 10
Parameter Fractional Fractional Fractional Fractional
Bias Error Bias Error
SO4 -64% 64% -65% 65%
NO3 -111% 131% -109% 132%
OC 12% 44% 5% 43%
EC 4% 33% 1% 33%
Primary Fine -77% 77% -81% 81%
Light Scattering -16% 34% -16% 32%
Light Extinction -74% 74% -45% 45%
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August 2004 Results
Sauvie Island Bscat
Bscat, observed Bscat,04aug.run10 Bscat, 04aug.run8
70
60
Bscat [1/Mm]
50
40
30
20
10
0
8/10
8/11
8/12
8/13
8/14
8/15
8/16
8/17
8/18
8/19
8/20
8/21
8/22
Mt Zion Bscat
Bscat, observed Bscat,04aug.run10 Bscat, 04aug.run8
100
80
Bscat [1/Mm]
60
40
20
0
8/10
8/11
8/12
8/13
8/14
8/15
8/16
8/17
8/18
8/19
8/20
8/21
8/22
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August 2004 Results
Bonneville Bscat
Bscat, observed Bscat,04aug.run10 Bscat, 04aug.run8
80
70
Bscat [1/Mm]
60
50
40
30
20
10
0
8/10
8/11
8/12
8/13
8/14
8/15
8/16
8/17
8/18
8/19
8/20
8/21
8/22
Wishram Bscat
Bscat, observed Bscat,04aug.run10 Bscat, 04aug.run8
90
80
70
Bscat [1/Mm]
60
50
40
30
20
10
0
8/10
8/11
8/12
8/13
8/14
8/15
8/16
8/17
8/18
8/19
8/20
8/21
8/22
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August 2004 Results
Extinction Components at Mt Zion [1/Mm]. 04Nov.run10 Extinction Components at Wishram [1/Mm]. 04Aug.run10
(NH4)2SO4 (NH4)NO3 OC EC (NH4)2SO4 (NH4)NO3 OC EC
FINE COARSE NA+PCL Bext, Observed FINE COARSE NA+PCL Bext, observed
70 60
60 50
50
40
40
30
30
20
20
10 10
0 0
040810
040811
040812
040813
040814
040815
040816
040817
040818
040819
040820
040821
040810
040811
040812
040813
040814
040815
040816
040817
040818
040819
040820
040821
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November 2004 Results
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November 2004 Results
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November 2004 Results
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November 2004 Results
Run 8 Run 10
Parameter Fractional Fractional Fractional Fractional
Bias Error Bias Error
SO4 -45% 66% 14% 59%
NO3 18% 108% 30% 91%
OC 15% 56% -20% 53%
EC 61% 75% 36% 57%
Primary Fine
Light Scattering
Light Extinction
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November 2004 Results
Sauvie Island Light Scattering
Bscat, observed Bscat, 04nov.run10 Bscat, 04nov.run7
450
400
350
Bscat [1/Mm]
300
250
200
150
100
50
0
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
Mt Zion Light Scattering
Bscat, observed Bscat, 04nov.run10 Bscat, 04nov.run7
500
400
Bscat [1/Mm]
300
200
100
0
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
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November 2004 Results
Bonneville Light Scattering
Bscat, observed Bscat, 04nov.run10 Bscat, 04nov.run7
180
160
140
Bscat [1/Mm]
120
100
80
60
40
20
0
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
Wishram Light Scattering
Bscat, observed Bscat, 04nov.run10 Bscat, 04nov.run7
350
300
Bscat [1/Mm]
250
200
150
100
50
0
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
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November 2004 Results
Extinction Components at Mt Zion [1/Mm]. 04Nov.run7 Extinction Components at Mt Zion [1/Mm]. 04Nov.run10
(NH4)2SO4 (NH4)NO3 OC EC (NH4)2SO4 (NH4)NO3 OC EC
FINE COARSE NA+PCL Bext, Observed FINE COARSE NA+PCL Bext, Observed
600 600
500 500
400 400
300 300
200 200
100 100
0 0
041104
041105
041106
041107
041108
041109
041110
041111
041112
041113
041114
041115
041116
041117
041104
041105
041106
041107
041108
041109
041110
041111
041112
041113
041114
041115
041116
041117
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November 2004 Results
Extinction Components at Wishram [1/Mm]. 04Nov.run7 Extinction Components at Wishram [1/Mm]. 04Nov.run10
(NH4)2SO4 (NH4)NO3 OC EC (NH4)2SO4 (NH4)NO3 OC EC
FINE COARSE NA+PCL Bext, observed FINE COARSE NA+PCL Bext, observed
500 500
450 450
400 400
350 350
300 300
250 250
200 200
150 150
100 100
50 50
0 0
041104
041105
041106
041107
041108
041109
041110
041111
041112
041113
041114
041115
041116
041117
041104
041105
041106
041107
041108
041109
041110
041111
041112
041113
041114
041115
041116
041117
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Next Steps
• 2018 runs are “in the oven”
• 2018 “what-if” scenarios are about to
start
• 2004/18 PSAT runs will start after
these are completed
• Complete technical report
V:\corporate\marketing\overview.ppt
