The impacts of pollution sources and temperature  on the light absorption of HULIS were revealed by UHPLC-HRMS/MS at the molecular structure level

Qiu, Tao; Qiu, Yanting; Yuan, Yongyi; Su, Rui; Meng, Xiangxinyue; Ma, Jialiang; Wang, Xiaofan; Gu, Yu; Wu, Zhijun; Ning, Yang; Hua, Xiuyi; Liang, Dapeng; Dong, Deming

doi:10.5194/acp-25-11505-2025

Articles | Volume 25, issue 18

https://doi.org/10.5194/acp-25-11505-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-11505-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 18

Research article

|

29 Sep 2025

Research article |

| 29 Sep 2025

The impacts of pollution sources and temperature on the light absorption of HULIS were revealed by UHPLC-HRMS/MS at the molecular structure level

Tao Qiu, Yanting Qiu, Yongyi Yuan, Rui Su, Xiangxinyue Meng, Jialiang Ma, Xiaofan Wang, Yu Gu, Zhijun Wu, Yang Ning, Xiuyi Hua, Dapeng Liang, and Deming Dong

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Jul 2025	86	24	16	126
Aug 2025	376	8	10	394
Sep 2025	1,699	20	3	1,722
Oct 2025	284	35	5	324
Nov 2025	140	63	10	213
Dec 2025	130	76	18	224
Jan 2026	118	53	7	178
Feb 2026	110	71	13	194
Mar 2026	124	89	15	228
Apr 2026	118	55	12	185
May 2026	79	26	12	117
Jun 2026	26	14	3	43
Jul 2026	44	26	14	84
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Cumulative views and downloads (calculated since 25 Apr 2025)

Month	HTML	PDF	XML	Total
Apr 2025	200	18	6	224
May 2025	188	44	14	246
Jun 2025	88	12	6	106
Jul 2025	86	24	16	126
Aug 2025	376	8	10	394
Sep 2025	1,699	20	3	1,722
Oct 2025	284	35	5	324
Nov 2025	140	63	10	213
Dec 2025	130	76	18	224
Jan 2026	118	53	7	178
Feb 2026	110	71	13	194
Mar 2026	124	89	15	228
Apr 2026	118	55	12	185
May 2026	79	26	12	117
Jun 2026	26	14	3	43
Jul 2026	44	26	14	84
Aug 2026	32	36	19	87
Sep 2026	97	167	154	418
Oct 2026	39	46	38	123

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Our research reveals that some species formed by biomass burning and coal combustion dominate the light absorption of organic aerosols during winter. Cold weather helps these species accumulate in aerosols by slowing their degradation and altering atmospheric chemical processes. This means colder regions might experience stronger and more persistent climate impacts. Our findings highlight the importance of local temperatures and pollution sources when tackling climate challenges.