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Correlation and Determination Coefficients of Regressing Pollutant Levels on Distance
| Pollutants | R-value | R2 | Std. Error of Estimate | β- value | Sig. Level |
|---|---|---|---|---|---|
| PM2.5 | −0.85 | 0.74 | 255.0 | −288.75 | 0.000 |
| PM10 | −0.86 | 0.75 | 519.2 | −588.9 | 0.000 |
| TVOC | −0.87 | 0.76 | 587.9 | −702.7 | 0.000 |
| NO2 | −0.69 | 0.48 | 183.0 | −115.9 | 0.004 |
| SO2 | −0.70 | 0.49 | 91.16 | −59.5 | 0.003 |
