TABLE 5.
Calculated trimester and pregnancy exposure estimates of within 10 km of a pollution monitoring station compared to Environmental Protection Agency (EPA) standard.
| Stillbirths | Live births | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pollutant | EPA Standard10 | Stillbirths within 10 km | First trimester exposure (mean±sd) | Second trimester exposure (mean±sd) | Third trimester exposure (mean±sd) | Whole pregnancy exposure (mean±sd) | Live births within 10 km | First trimester exposure (mean±sd) | Second trimester exposure (mean±sd) | Third trimester exposure (mean±sd) | Whole pregnancy exposure (mean±sd) |
| CO (ppm) | 9 (8-hour average) | 1,061 | 0.38±0.12 | 0.37±0.12 | 0.37±0.13 | 0.37±0.11 | 200,399 | 0.39±0.13 | 0.39±0.13 | 0.38±0.14 | 0.39±0.11 |
| Pb (μg/m3) | 0.15 (rolling 3 month average) | 1,107 | 0.1±0.0 | 0.1±0.0 | 0.0±0.0 | 0.1±0.0 | 202,609 | 0.1±0.0 | 0.1±0.0 | 0.1±0.0 | 0.1±0.0 |
| NO2 (ppb) | 100 (1-hour average) | 446 | 16.5±2.9 | 16.5±3.6 | 16.0±3.0 | 16.4±2.7 | 80,334 | 16.9±3.5 | 16.6±3.6 | 16.3±3.6 | 16.7±3.3 |
| O3(ppm) | 0.075 (8-hour average) | 1,741 | 0.03±0.01 | 0.03±0.01 | 0.03±0.01 | 0.03±0.01 | 350,055 | 0.03±0.01 | 0.03±0.01 | 0.03±0.01 | 0.03±0.01 |
| PM2.5 (μg/m3) | 12 (annual average) | 1,782 | 13.6±2.8 | 13.2±2.3 | 13.3±2.8 | 13.3±1.8 | 345,782 | 13.7±2.9 | 13.3±2.4 | 13.0±2.3 | 13.3±1.8 |
| SO2 (ppb) | 75 (1-hour average) | 1,104 | 3.5±1.9 | 3.4±2.0 | 3.5±2.3 | 3.4±1.8 | 219,416 | 3.8±2.1 | 3.6±2.1 | 3.5±2.1 | 3.6±1.9 |
sd= standard deviation
ppm = parts per million
ppb = parts per billion