Analysis of Pollution Characteristics and Emissions Reduction Measures in the Main Cotton Area of Xinjiang.

Int J Environ Res Public Health · 2023 · PMC9915229 · PMID 36767639

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showed a trendno p-value reported

On the whole, the annual concentration values showed a trend of alternating cycle changes, and the distribution intensity on each time scale showed a certain difference.

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a decreasing trendno p-value reported

The pollutant concentration shows a decreasing trend from 2017 to 2021, and the main pollutant was particulate matter.

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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.