Modeling the Short-Term Effect of Traffic and Meteorology on Air Pollution in Turin with Generalized Additive Models

Figure 10

Estimated effects of meteorological variables for PM₁₀, by season. Blue is Winter, red is Spring, orange is Summer, and violet is Fall.

(a)  Traffic

(b) Temperature

(c) Wind speed

(d) Wind speed (lag1)

(e) Relative Humidity

(f) Pressure