近年来发现的独特的汞同位素非质量分馏，是地球化学和环境科学又一个里程碑事件，其分馏机理和环境应用研究大大推动了相关认知，拓展了稳定同位素研究领域。中心近期以汞同位素非质量分馏为核心，实验模拟了汞同位素在环境过程中的分馏效应，构建了基于同位素分馏的全球汞循环数值模型，应用同位素示踪了不同时空尺度下汞的来源和迁移转化，以及地球史上一些重要气候变化、构造活动及生物灭绝事件，在PNAS、NC、GCA、EST等权威刊物发表了系列论文。这些成果大大提高了对同位素分馏理论的认知，完善了人类活动和气候变化影响下的汞生物地球化学循环，为理解地球环境和生命演化提供了新的视角。
1.实验判定了氧化过程汞同位素分馏系数和机制，揭示了不同氧化态转化过程具有不同汞同位素分馏机制，大大推动环境中广泛存在的氧化过程机理研究（Zheng et al., EST, 2019）；
2.建立了首个基于汞同位素的全球汞循环模型，为高时间分辨的环境汞及其同位素沉积记录提供了可精确对比的全球性理论标尺（Sun et al., GCA, 2019）；
3.开辟了（古）海洋演化汞同位素研究新领域，揭示了汞同位素与海洋硫循环的耦合机制，为古海洋氧化还原状态的重建和现代硫化水体相关研究提供了新的证据（Zheng et al., PNAS, 2018）；
4.基于同位素解析了我国入海河流和边缘海中汞的来源和迁移，建立了可定量海陆交界区域汞输入和迁移的模型，并揭示了边缘海食物链中甲基汞主要来自沉积物（Meng et al., EST, 2019，Meng et al., JHM, 2020；Zhang et al. EES, 2020）；
5.开展了大气灰霾颗粒汞污染的同位素示踪，推动了应用汞同位素示踪雾霾颗粒来源的理论发展（Huang et al., ACP 2019；Xu, Sun et al., CG, 2019）；
6.提出了生物大灭绝事件汞同位素新证据，系统分析了五大生物灭绝事件地层界面汞同位素组成，揭示了不同时期火山活动对区域和全球范围生物灭绝的影响机制（Shen, Chen et al., NC, 2019）。
主要成果列表：
(1) Wang Zheng*, J. D. Demers, X. Lu, B. A. Bergquist, A. D. Anbar, J. D. Blum, B. H. Gu*. Mercury stable isotope fractionation during abiotic dark oxidation in the presence of thiols and natural organic matter. Environmental Science & Technology (封面文章). 2019, 53 (4), 1853-1862.
(2) Ruoyu Sun*, Martin Jiskra, Helen M. Amos, Yanxu Zhang, Elsie M. Sunderland, Jeroen E. Sonke*. Modelling the mercury stable isotope distribution of Earth surface reservoirs: implications for global Hg cycling. Geochimica Et Cosmochimica Aata. 2019, 246, 156-173.
(3) Qiang Huang, Jiubin Chen*, Weilin Huang, John R. Reinfelder, Pingqing Fu, Shengliu Yuan, Zhongwei Wang, Wei Yuan, Hongming Cai, Hong Ren, Yele Sun, and Li He. Diel variation in mercury stable isotope ratios records photoreduction of PM2.5-bound mercury. Atmospheric Chemistry and Physics. 2019, 19, 315-325.
(4) H. M. Xu, Ruoyu Sun*, J. J. Cao*, R.-J. Huang, B. Guinot, Z. X. Shen, M. Jiskra, C. X. Li, B. Y. Du, C. He, S. X. Liu, T. Zhang, J. E. Sonke. Mercury stable isotope compositions of Chinese urban fine particulates in winter haze days: Implications for Hg sources and transformations. Chemical Geology. 2019, 504, 267-275.
(5) Mei Meng, Ruo-yu Sun, Hong-wei Liu, Ben Yu, Yong-guang Yin, Li-gang Hu, Jian-bo Shi*, Gui-bin Jiang. An Integrated Model for Input and Migration of Mercury in Chinese Coastal Sediments. Environmental Science & Technology. 2019, 53 (5), 2460-2471.
(6) Mei Meng, Ruo-yu Sun, Hong-wei Liu, Ben Yu, Yong-guang Yin, Li-gang Hu, Jiu-bin Chen, Jian-bo Shi*, Gui-bin Jiang. Mercury isotope variations within the marine food web of Chinese Bohai Sea: Implications for mercury sources and biogeochemical cycling. Journal of Hazardous Materials. 2020, 384, 121379.
(7) Wang Zheng*, G. J. Gilleaudeau, L. C. Kah, A. D. Anbar. Mercury isotope signatures record photic zone euxinia in the Mesoproterozoic ocean. Proc. Natl. Acad. Sci. USA. 2018, 115 (42), 10594-10599.
(8) Jun Shen, Jiubin Chen, Thomas J. Algeo, Shengliu Yuan, Qinglai Feng, Jianxin Yu, Lian Zhou, Brennan O'Connell, Noah J. Planavsky. Evidence for a prolonged Permian-Triassic extinction interval from global marine mercury records. Nature Communications. 2019, 10 (1), 1563.
(9) Yuanyuan Zhang, Jiubin Chen*, Wang Zheng, Ruoyu Sun, Shengliu Yuan, Hongming Cai, David Au Yang, Wei Yuan, Mei Meng, Zhongwei Wang, Yulong Liu, Jianfeng Liu, Mercury isotope compositions in large anthropogenically impacted Pearl River, South China, Ecotoxicology and Environmental Safety, 2020,191, 110229.
