File:Langfang air quality from 2014-2018.png
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![File:Langfang air quality from 2014-2018.png](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Langfang_air_quality_from_2014-2018.png/800px-Langfang_air_quality_from_2014-2018.png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:11, 5 October 2018 | ![]() | 862 × 371 (46 KB) | commons>Qwwxqz | Cross-wiki upload from en.wikipedia.org |
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