The robotic dog will consume plastic on land especially on dirty streets and can absorb micro pollution. It will have ai so that it doesn't harm wildlife or humans and will be able to navigate through crowded pavements, avoid cars, cross the road and walk with owners. Also if anyone is allergic to dogs they could get one of these. It will also have fake fur to make it look real and have a sensor in its collar which says whether the pollution is high or low.