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> The temporary closure of polluting industries improves air quality That is not true and it doesn't reduce anything It's not a few days that change things B

• _-___________-_ 7y ago
  The lack of strong wind and low precipitation (and the surrounding mountains and ocean) cause air pollution to persist for longer, but the air pollution still has to come from somewhere.
  • chinesempire 7y ago
    The problem with the lack of winds is that the pollution precipitate on the ground and ends up polluting groundwaters Rain can sometimes dilute them and winds disperse them Another problem with the perception of reduced pollution is that people think that cars running are the major source of air pollution, while home warming is, so the reduction is also due to the warm season coming. Cars running major effect is picking up fine dust with their tyres and disperse them into the air Which increases air pollution but also makes it less persistent When on the ground it becomes more dangerous in the long term