CH₄ (ppmv)

O₃ (ppmv)

NO₂ (ppmv)

CO₂ (ppmv)

Solar radiation (MJ/m²)

Relative humidity (%)

Temperature (˚C)

Wind speed (m/s)

0.661*

0.859*

−0.549

−0.906

0.571

0.345

−0.167

−0.518

−0.106

−0.516

0.077

−0.317

0.656

0.646

0.962*

0.951*