The Ministry of ecology and environment informed the media of the national surface water and ambient air quality in December 2021 and from January to December. Haikou ranked first in the ranking of ambient air quality of 168 key cities in China from January to December 2021. However, the surface water environmental quality of Haikou is not very good and needs further improvement. However, the ambient air quality in Zaozhuang, Puyang, the hometown, ranks last.
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