Environmental impact
Potential accidental spillage and contamination of water/ground and other safety issues can occur in storage, handling and transportation of toxic wastes. Toxic wastes are treated prior to incineration (and landfill for non-incinerables). Contribute to carbon emissions and release of other harmful pollutants, e.g. dioxin and heavy metals. Landfill of non-incinerable wastes not only increases land demand could increase potential for ground and water contamination, including the harmful release of methane gas.

Performance Status
All laboratory chemical wastes are collected for off-site disposal and any neutralised chemicals or rinse water are diluted through buffer tanks prior to discharge into sewer. Biological wastes and sharps are pre-treated by autoclaving or disposed as pathogenic wastes. Licensed toxic waste collectors engaged on term basis are used for toxic waste disposal. The amount of toxic wastes generated has been within the legal parameters. More on EMS & Legal Compliance.

Recycling practices include recharging of batteries and PVC wires before end-of-life disposal as toxic wastes. This applies to reusable plastic, glass and metal in labs and where it is feasible.

In the last two years, much effort has been put into developing the Integrated Chemical Management Database to ease tracking and streamline disposal system so as to minimize hazardous waste storage on campus.

Objectives & Targets – 2007 to 2010
Continue to monitor and manage toxic waste through the Integrated Chemical Management Database.

2005 – 2006 Financial Year 1 April 2005 to 31 March 2007
Objectives & Targets Performance & Efforts
New programme to develop Integrated Chemical Management Database to ease tracking, streamline disposal system and minimize hazardous waste storage The database has been completed and will be launched in 2008.
2001 - 2004 Financial year 1 April 2001 to 31 March 2005
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