Artificial rainmaking for the North to alleviate PM2.5 pollution

  WITH air pollution in Chiang Mai and the rest of the northern region having deteriorated from mid-January onwards, artificial rainmaking operation is now starting to help reduce the unhealthy air, Matichon newspaper said this afternoon (Feb. 3). Mr. Supit Pitaktham, deputy chief of the Royal Rainmaking and Agricultural Aviation Department, said after visiting Chiang

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