The challenge aims to help businesses develop innovative products and services which can make a real difference to lessen the harmful impacts of the pollutant on the land and in the atmosphere.
Nod yr her yw helpu busnesau i ddatblygu cynhyrchion a gwasanaethau arloesol a all wneud gwahaniaeth gwirioneddol i leihau effeithiau niweidiol y llygrydd ar y tir ac yn yr atmosffer.