Drone 4K Footage Above Surrey panoramic shot of a city center of high rise buildings downtown cityscape maintaining air quality

drone 4k cityscape highrise buildings train track roads parking lot pollution air quality carbon dioxide fresh air carbon monoxide pollutants allergy allergic breathe allergen contaminate infect city urban town architecture outside concrete building architectural structure downtown skyline brick outdoors traffic congestion red light green light stop sign intersection crosswalk pedestrians cars trucks automobiles trains jay walking taffic jam slow congested