2023 is the first year that China's national average PM2.5 level
Beijing, China:
China's air pollution worsened in 2023, the first time it has done so in a decade, a study released on Friday said.
"2023 is the first year that China's national average PM2.5 level has increased year-on-year since the beginning of China's 'war on pollution' in 2013," a study by independent research organisation the Centre for Research on Energy and Clean Air said.
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