Seasonal shifts in mercury speciation and relative methylation potential in cold-arid seasonally ice-covered lakes - Jinda Zhang; Shengnan Zhao; Xiaohong Shi; Kunjiao Chen; Yaqiong Gao; Hui Zhang; Jinyan Guo; Xiu Li; Yue Han; Ruli Kang; Jingyi Wang (Environmental Pollution, 2026)