Hotspots and hot moments of metal mobilization:  dynamic connectivity in legacy mine waters

Sanchez, Anita Alexandra; Lau, Maximilian P.; Adam, Sean; Hedrich, Sabrina; Jackisch, Conrad

doi:10.5194/hess-30-945-2026

Articles | Volume 30, issue 4

https://doi.org/10.5194/hess-30-945-2026

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

https://doi.org/10.5194/hess-30-945-2026

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

Articles | Volume 30, issue 4

Research article

|

17 Feb 2026

Research article |

| 17 Feb 2026

Hotspots and hot moments of metal mobilization: dynamic connectivity in legacy mine waters

Anita Alexandra Sanchez, Maximilian P. Lau, Sean Adam, Sabrina Hedrich, and Conrad Jackisch

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Aug 2025	322	10	4	336
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Nov 2025	74	50	18	142
Dec 2025	72	76	6	154
Jan 2026	80	110	8	198
Feb 2026	225	119	17	361
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Cumulative views and downloads (calculated since 29 Aug 2025)

Month	HTML	PDF	XML	Total
Aug 2025	322	10	4	336
Sep 2025	5,212	52	10	5,274
Oct 2025	154	60	26	240
Nov 2025	74	50	18	142
Dec 2025	72	76	6	154
Jan 2026	80	110	8	198
Feb 2026	225	119	17	361
Mar 2026	288	139	12	439
Apr 2026	219	88	11	318
May 2026	196	120	5	321
Jun 2026	19	15	2	36
Jul 2026	44	24	1	69

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Short summary

Abandoned mine systems release contaminants through episodic connectivity rather than steady seepage. At the Reiche Zeche mine, we show that low flow and pre-flush phases accumulate solutes that are rapidly exported during short-lived reconnection events. These hot moments dominate annual metal loads, highlighting the need for event-sensitive monitoring and targeted, near-source remediation strategies.