Table A1.
Equation | Intercept (a) | RH (b) | Nephelometer (c) | Spline (d) | Spline Knot 1 (e) | RMSE |
---|---|---|---|---|---|---|
C-spline (Equation (8)) | 0.36 | 0.69 | 1.07 | −0.43 | 8.0 | 2537 |
1 If ln(Nephelometric PM) is <8, then the last term, which is “d × (ln(Nephelometric PM) − e)”, becomes a 0.