1, the less smog, the better the air.

2, smog is harmful, less fireworks.

3. The smog passed and the stars shone.

4. Haze weather is harmful, and fresh air depends on everyone.

5, smog driving slowly, in order to ensure safety.

6, smog should wear a mask, good health is the most important.

7. Fight against breathing, control pollution and reduce smog. We are on the move.

8. Take action in one breath.

9. Take full action to control smog, drive less and ride more bikes.

10, control smog weather and improve air quality.

1 1. Plant green grasslands to purify the blue sky.

12, fight smog and keep healthy.

13, stay away from the smog environment and build a green home together.

14, stay away from the smog and start with me.