Integrated PMF-CFM source apportionment reveals contrasting microplastic signatures between rivers and drinking water sources on tropical islands - Miaoni He; Yibin Qian; Xingna Cao; Qilong Liao; Wenwen Yi; Bin Tang; Xiaowan Luo; Ruijuan Liu; Rongfa Xu; Xuchen Yang; Bowen Li; Jing Zheng (Journal of Environmental Management, 2026)