Potential increase of neurotoxic mercury risk in global blue carbon nature-based solutions

Zhijia Ci (), Wenjie Shen, Baowei Chen, Yanbin Li, Yongguang Yin, Xiaoshan Zhang and Yong Cai
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Zhijia Ci: Sun Yat-sen University
Wenjie Shen: Sun Yat-sen University
Baowei Chen: Sun Yat-sen University
Yanbin Li: Ocean University of China
Yongguang Yin: Chinese Academy of Sciences
Xiaoshan Zhang: Chinese Academy of Sciences
Yong Cai: Florida International University

Nature Sustainability, 2024, vol. 7, issue 12, 1592-1595

Abstract: Abstract Blue carbon strategies are now being proposed as a promising, nature-based solution for achieving multiple benefits. Here we provide field evidence on the co-accumulation of organic carbon and neurotoxic mercury (Hg) in coastal environments. We estimate the global Hg stock in the top metre of sediment of blue carbon ecosystems to be 21,306 to 125,018 Mg (mean = 73,162 Mg), highlighting that Blue Hg stock is an important, dynamic, reactive, but overlooked Hg pool in global Hg cycle and health risk.

Date: 2024
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DOI: 10.1038/s41893-024-01471-y

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