Sewage sludge as a mirror of human activities - a research monitoring project
About 150 sludge samples have been collected from China since 2010, most of which were taken from the wastewater treatment plants (WWTPs) in the Yangtze River Delta. Several persistent organic pollutants, including polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDDs), dechlorane plus (DP), perfluorinated alkyl substances (PFAS) and phthalate esters (PAEs) were detected in sludge from Shanghai.
The aims of subproject #5 are:
- To develop analysis method for endocrine disrupting chemicals (EDCs) (i.e., NPs and TBBPA) in sludge
- To identify and prioritize organic contaminants in sludge based on production, physico-chemical properties, and toxicity of chemicals
- To establish Chinese Sewage Sludge Repository (CSSR) with long-term sludge collection from the selected WWTPs in China
- To examine spatial distribution of priority organic contaminants using samples from the CSSR, and/or Environmental Specimen Bank (ESB) of Sweden, Germany, the United Kingdom (personal communication with Anders Bignert), and the United States
- To understand the temporal trends of priority organic contaminants using samples from the CSSR, and to evaluate the effectiveness of environmental policy-making and regulations of local government
The main task of Action I is to develop the analytical methods of several types of chemicals, which will be done based on the international cooperation with different scientists from Sweden, Germany, and the United States.
Research team: Xiang-Zhou Meng, Lingling Wu, Jianfu Zhao, Lillemor Asplund and Anders Bignert