34 PBM major assumptions: 1.Well mixed box, no significant spatial variation inside the box/surface; 2.Low wind to near stagnant conditions (< 2m/s) 3.Emission sources are homogeneously distributed within the domain; 4.Entrainment/exchange 1.laterally by advective transport 2.Vertically by rising mixing layer 5.Molecular and turbulent diffusion neglected (well mixed…) 6.Horizontal and vertical wind shear neglected.
{}