Notice of RetractionThe Sedimentary Record of Heavy Metal Pollution in a River in PRD, China

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Since the sediment cores record the history of regional pollution, they are of great significance for studying regional environment evolution and promoting environmental management. The sedimentary record of heavy metals in Foshan Waterway was investigated by the analysis of the sediment cores. The sedimentary rates, measured by the ²¹⁰Pb dating method, range from 4.487 5.177 cm · a^-1, and the sedimentation is inferred to occur in the last 16-22 years. Compared with the registered discharge of heavy metals, the relationship was established between the sedimentary record (based on the sedimentary age) and the registered discharge. It was found that abnormal discharges of Cd took place in certain section of the waterway from 1992 to 1993. This research indicates that the sedimentary record will help make up for the insufficiency of registered discharges, and improve the capability of environmental management.