Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pearson Correlation Coefficients Between Air Pollutants
| Air Pollutants | Pearson Correlation Coefficients |
|||
|---|---|---|---|---|
| O3, μg/m3 | CO, ppm | NO2, μg/m3 | SO2, μg/m3 | |
| CO | 0.13 | |||
| NO2 | 0.64 | 0.65 | ||
| SO2 | 0.37 | 0.56 | 0.57 | |
| PM10 | 0.47 | 0.72 | 0.79 | 0.70 |
All correlations significant at the 0.01 level (two-tailed). See Table 2 legend for expansion of abbreviations.
