Pollution Warning Sign for Air Quality Awareness

A clear and direct German road sign warns about air pollution. The main triangular sign features a black silhouette of a car emitting a large cloud of dark exhaust smoke, set against a white background with a red border. Below it, a supplementary rectangular sign in black and white reads 'Achtung! Ungesunde Luft,' translating to 'Attention! Unhealthy Air.' This sign serves as an important visual alert to poor air quality, likely due to vehicle emissions, emphasizing the need for environmental awareness.

pollution - air quality - warning sign - germany - car exhaust - environment - health warning - road sign