Related health burden with the improvement of air quality across China.

Chin Med J (Engl) · 2024 · PMC11611245 · PMID 38238152

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an increasing trendno p-value reported

However, the O 3 -contribution showed an increasing trend in most regions but showed differences across regions.

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a decreasing trendno p-value reported

The proportion of economic burden from PM 2.5 and O 3 to GDP significantly declined from 2005 to 2017 and showed a decreasing trend pattern from northeast to southwest.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.