Quantifying the driving factors of particulate  matter variabilities in the Beijing-Tianjin-Hebei  and Yangtze River Delta regions from 2015  to 2022 by machine learning approach

Pan, Zhongfeng; Yin, Hao; Sun, Zhenda; Li, Chongyang; Sun, Youwen; Liu, Cheng

doi:10.5194/acp-26-2545-2026

Articles | Volume 26, issue 4

https://doi.org/10.5194/acp-26-2545-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-2545-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 4

Research article

|

18 Feb 2026

Research article |

| 18 Feb 2026

Quantifying the driving factors of particulate matter variabilities in the Beijing-Tianjin-Hebei and Yangtze River Delta regions from 2015 to 2022 by machine learning approach

Zhongfeng Pan, Hao Yin, Zhenda Sun, Chongyang Li, Youwen Sun, and Cheng Liu

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Month	HTML	PDF	XML	Total
Jul 2025	290	58	8	356
Aug 2025	458	36	12	506
Sep 2025	1,090	34	24	1,148
Oct 2025	72	22	6	100
Nov 2025	80	20	10	110
Dec 2025	246	84	26	356
Jan 2026	144	76	6	226
Feb 2026	438	83	11	532
Mar 2026	262	124	13	399
Apr 2026	218	114	8	340
May 2026	146	86	12	244
Jun 2026	30	14	4	48
Jul 2026	68	34	13	115
Aug 2026	65	63	26	154
Sep 2026	161	167	123	451
Oct 2026	55	51	44	150

Cumulative views and downloads (calculated since 23 Jul 2025)

Month	HTML	PDF	XML	Total
Jul 2025	290	58	8	356
Aug 2025	458	36	12	506
Sep 2025	1,090	34	24	1,148
Oct 2025	72	22	6	100
Nov 2025	80	20	10	110
Dec 2025	246	84	26	356
Jan 2026	144	76	6	226
Feb 2026	438	83	11	532
Mar 2026	262	124	13	399
Apr 2026	218	114	8	340
May 2026	146	86	12	244
Jun 2026	30	14	4	48
Jul 2026	68	34	13	115
Aug 2026	65	63	26	154
Sep 2026	161	167	123	451
Oct 2026	55	51	44	150

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Short summary

This study examines air pollution in Beijing-Tianjin-Hebei and the Yangtze River Delta from 2015 to 2022. PM_2.5 (particulate matter) decreased by 9.1-31.4 μg/m³ and PM₁₀ by 9.8–42.9 μg/m³. Weather factors like humidity, air pressure, and rainfall influenced pollution, with tailored solutions needed for different regions.