TexAQS 2006 P3 Comparisons
Summaries for Dallas/Fort-Worth and Houston Urban Centers
Ratios of Average Excess Concentrations (above background) for models and observations
Also: Emission Ratios from inventory (NEI99 version 3, CEMS 2004 update) for available species
Average Excess above Background Ratios, Relative to NOy
| O3 | CO | NOx | HNO3 | Ethylene | Toluene | |
|---|---|---|---|---|---|---|
| Ox | PAN | NH3 | SO2 | CH2O | CH3CHO | Xylenes |
| PM2.5 | SO4_pm2.5 | NH4_pm2.5 | Organic_pm2.5 | ElemC_pm2.5 | NO3_pm2.5 | Total SO2/SO4 |
Average Excess above Background Ratios, Relative to CO
| O3 | NOy | NOx | HNO3 | Ethylene | Toluene | |
|---|---|---|---|---|---|---|
| Ox | PAN | NH3 | SO2 | CH2O | CH3CHO | Xylenes |
| PM2.5 | SO4_pm2.5 | NH4_pm2.5 | Organic_pm2.5 | ElemC_pm2.5 | NO3_pm2.5 | Total SO2/SO4 |
Average Excess above Background Ratios, Relative to PM25
| O3 | CO | NOy | NOx | HNO3 | Ethylene | Toluene |
|---|---|---|---|---|---|---|
| Ox | PAN | NH3 | SO2 | CH2O | CH3CHO | Xylenes |
| SO4_pm2.5 | NH4_pm2.5 | Organic_pm2.5 | ElemC_pm2.5 | NO3_pm2.5 | Total SO2/SO4 |
Average Excess above Background Ratios, Relative to SO2
| O3 | CO | NOy | NOx | HNO3 | Ethylene | Toluene |
|---|---|---|---|---|---|---|
| Ox | PAN | NH3 | CH2O | CH3CHO | Xylenes | |
| PM2.5 | SO4_pm2.5 | NH4_pm2.5 | Organic_pm2.5 | ElemC_pm2.5 | NO3_pm2.5 | Total SO2/SO4 |
Average Excess above Background Ratios, Relative to PM2.5 Elemental Carbon
| O3 | CO | NOy | NOx | HNO3 | Ethylene | Toluene |
|---|---|---|---|---|---|---|
| Ox | PAN | NH3 | SO2 | CH2O | CH3CHO | Xylenes |
| PM2.5 | SO4_pm2.5 | NH4_pm2.5 | Organic_pm2.5 | NO3_pm2.5 | Total SO2/SO4 |
