TABLE 2.
Median bias per unit increase in pollutant concentration and 82% interval (5th lowest value, 5th highest value from the 50 simulations) caused by Berkson error.
| Median Bias | 82% Interval | |
|---|---|---|
| NO2 | 2.88% | (−1.94%, 12.57%) |
| NOx | 12.32% | (2.72%, 20.65%) |
| CO | 6.81% | (−2.37%, 16.96%) |
| SO2 | 23.91% | (18.29%, 29.99%) |
| O3 | 2.21% | (−14.32%, 15.48%) |
| PM10 | 0.07% | (−6.56%, 10.55%) |
| PM2.5 | 0.37% | (−12.12%, 12.64%) |
| SO4 | −1.09% | (−10.81%, 9.66%) |
| NO3 | 1.67% | (−4.66%, 9.65%) |
| NH4 | 2.04% | (−7.4%, 11.37%) |
| EC | 4.86% | (−1.29%, 11.69%) |
| OC | 1.98% | (−5.27%, 8.02%) |
Abbreviations: 1-hr maximum nitrogen dioxide (NO2), nitrogen oxides (NOx), carbon monoxide (CO), and sulfur dioxide (SO2); 8-hr maximum ozone (O3); and 24-hr average particulate matter less than 10 microns in diameter (PM10), particulate matter less than 2.5 microns in diameter (PM2.5), PM2.5 sulfate (SO4) , PM2.5 nitrate (NO3), PM2.5 ammonium (NH4), PM2.5 elemental carbon (EC), and PM2.5 organic carbon (OC).