COMMERCE CITY, Colo. — Black smoke and flames were visible in the area of the Suncor Energy refinery Tuesday morning from a Denver7 city camera. Suncor called it an "important safety measure and environmental control tool" that allows the facility to run safely. Commerce City Commerce City neighbors skeptical of Suncor flare project to improve air quality Claire LavezzorioWhile "no action is required," according to Suncor, residents in the area can visit this website for publicly available air monitoring data. The CDPHE Air Pollution Control Division said it will develop a proposal for pursuing these recommendations to improve air quality. The division plans to present the proposal to the Air Quality Control Commission by the end of 2026 and request a rulemaking hearing.