That paragraph is straight from the Sanitary Services Act. The reason for the prohibition has to do with effluents, sanitation and public health.
IMHO there is no way any court could accept the paragraph being used as a reason to control parking.
It is fundamental that a requirement to control the rotation of parking spaces and control of parking in places which compromise the free and safe flow of traffic or compromise the environment (HGV's with fridge units running overnight in residential areas are an example) must be and can only be the basis for any parking bye laws.
If an authority wishes to use the paragraph mentioned by GCC then it can only be in relation to any emissions which compromise public health or the environment.