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Dr. Gang Yu Professor and Vice Chairman Department of Environmental Science & Engineering Tsinghua University Tel +86 10 627 85685(Off) +86 10 627 73519/84527 ext. 801 (Lab) Fax +86 10 627 94006, +86 10 627 85687 E-mail: yg-den@tsinghua.edu.cn

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Water Pollution Control Technologies

Research on Controlling POPs

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Definition of Persistent Organic Pollutants (POPs) Persistent Organic Pollutants (POPs) are defined as ‘a set of organic compounds that: (i) posses toxic characteristics; (ii) are persistent; (iii) are liable to bioaccumulate; (iv) are prone to long-range atmospheric transport and deposition; (v) can result in adverse environmental and human health effects at locations near and far from their sources’ Source: Convention on Long-Range Transboundary Air Pollution (CLRTAP), a protocol on persistent organic pollutants (POPs) under the auspices of the United Nations Economic Commission for Europe (UN-ECE)

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Adverse Effects of POPs on human Acute effects Immune system effects Reproductive and developmental effects Neurotoxicity and behavioural effects Effects on the endocrine system EDCs Carcinogenesis

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Global Concern and Convention • START —— 1992 – CLRTAP POPs protocol

• Main STEPS – May 1995 UNEP GC Decision 18/32 – Feb.1997 UNEP GC Decision 19/13C on POPs – Jun. 1998 ~ Dec. 2000 Five INCs held to prepare an international legally binding instrument for reduce and/or eliminate the 12 POPs – May, 1997 WHA endorsed the recommendation of IFCS

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


International Treaty • May 23rd, 2001 – Representatives of over 120 countries and regiouns gathered in Stockholm and signed a new global treaty on persistent organic pollutants (POPs).

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Dozen POPs in Convention ¾Organic Pesticides (9) Endrin, Dieldrin, DDT, Hexachlorobenzene, Chlordane, Mirex, Toxaphene, Heptachlor, Aldrin ¾Fine chemical (1)——PCBs ¾By-products (2) PCDDs, PCDFs

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Efforts at Tsinghua – Direction 1 Policy and Decision-making Support Screening POPs from ‘the Inventory of Existing Substances in China’ Rapid analysis & Field Investigation of POPs Best Available Techniques analysis Cleaner production to avoid POPs production POPs’ surrogate POPs’ proper disposal

Serial scientific databases about POPs

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Scientific Databases Basic Information Database

POPs Information Resource Dbtabase

POPs emission in China DB(GIS)

Physical-Chemical Properties Database

Mole-Descriptors Database

POPs remediation Tech. Database POPs related Cleaner Production DB

Persistent property Database Endocrine Disrupting property DB

Toxic Properties Database

POPs surrogate Database

PC Version, On-line Web Version (Now include ~100 most hazardous POPs chemicals) POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Efforts at Tsinghua - Direction 2 Basic research on environmental behavior of typical POPs POPs’ transport, transform and fate POPs’ multimedia distribution model QSAR to predict important parameters at the level of fine sub-structure Natural attenuation and mechanism

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Efforts at Tsinghua - Direction 3 Application research on typical POPs Advanced Oxidation Process(AOP) Remediation of POPs or its predecessor contaminated medium, such as sediment, soil... Photo-catalytic oxidation for indoor air Bioremediation Technique Mainly aimed at POPs contaminated soil, such as PAHs

POPs Research Centre of Tsinghua University

http:// www.chinawww.china-pops.net/


Virtual Platform for POPs Researchers ——

CHINA POPS NETWORK Website: http://www.China-POPs.net/ Language:English | Chinese Copyright by: POPs Research Center ◆ Direct Future Research ◆ Support Decision-making

◆ Promote Academic Exchange ◆ Raise Public Awareness

Website Navigator [POPs News]: [POPs Database]: [POPs Resources]: [POPs-GIS System]: [POPs Frontier]: [POPs Forum]: [POPs Mail list]:

Latest POPs related news, especially from China Scientific databases online, covering many POPs related subjects POPs resources on web were collected here as extensive linkages GIS based system for time-space analysis of POPs in multiple environment of China Report on the progress and trend of POPs research by the leading scientists Professional POPs forum waiting for your visit Convenient mail list group

Visit China POPs Network Know more about POPs in China POPs Research Centre POPs of Tsinghua UniversityCenter,Tsinghua http:// www.chinawww.china-pops.net/ Research University

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Persistent Organic Pollutants (POPs) are defined as ‘a set of organic Efforts at Tsinghua - Direction 2 Basic research on environmental beh...

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