Molecules, Vol. 29, Pages 1788: A Comprehensive Evaluation of Dioxins and Furans Occurrence in River Sediments from a Secondary Steel Recycling Craft Village in Northern Vietnam

Molecules, Vol. 29, Pages 1788: A Comprehensive Evaluation of Dioxins and Furans Occurrence in River Sediments from a Secondary Steel Recycling Craft Village in Northern Vietnam Molecules doi: 10.3390/molecules29081788 Authors: Hung Xuan Nguyen Xuyen Thi Nguyen Hang Thi Hong Mai Huong Thi Nguyen Nam Duc Vu Thao Thi Phuong Pham Trung Quang Nguyen Dat Tien Nguyen Nam Thanh Duong Anh Le Tuan Hoang Tung Ngoc Nguyen Nhan Van Le Ha Viet Dao Minh Truong Ngoc Minh Quang Bui This first study investigated the presence of dioxins and furans in river sediments around a craft village in Vietnam, focusing on Secondary Steel Recycling. Sediment samples were collected from various locations along the riverbed near the Da Hoi Secondary Steel Recycling village in Bac Ninh province. The analysis was conducted using a HRGC/HRMS-DFS device, detecting a total of 17 dioxin/furan isomers in all samples, with an average total concentration of 288.86 ng/kg d.w. The concentrations of dioxin/furan congeners showed minimal variation among sediment samples, ranging from 253.9 to 344.2 ng/kg d.w. The predominant compounds in the dioxin group were OCDD, while in the furan group, they were 1,2,3,4,6,7,8-HpCDF and OCDF. The chlorine content in the molecule appeared to be closely related to the concentration of dioxins and their percentage distribution. However, the levels of furan isomers did not vary significantly. The distribution of these compounds was not dependent on t...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research