Pollution and waste
Waste diversion statistics for the commercial office portfolio continue to improve. This is largely a reflection of the continuous improvement in waste management practices at a building level aided by effective monitoring and reporting. Initiatives to more effectively divert tenants' secure document destruction to recycling are also showing results.
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Until now we have reported the diversion percentage achieved at the end of each reporting period. The result shown below for 2007 is the average achieved across the portfolio for the whole year. Future diversion statistics will show the annual average, rather than the performance at period end.
It should be noted that we currently cannot place the same degree of confidence in waste statistics as those for energy and water. In order to more accurately monitor and track the various waste streams leaving each building, on selected sites we will shortly be installing weight-scales and bar-coding systems.
The pie charts on this page show the destinations for waste materials leaving our buildings during the year. Our objective is to minimise the proportion that goes to landfill. 'Commercial & Industrial' refers to the waste generally emanating from tenant operations; 'Construction & Demolition' refers to the waste disposed of by contractors working under our direction (this is often also on behalf of tenants).
We also collected statistics on the balance of 'cut and fill' from civil works for development projects that were active during the period. There was 825,589m3 cut and 659,687m3 fill leaving a balance of 165,902m3 which had to be removed from sites. We now require our contractors to supply detailed waste diversion statistics which will be presented in future reports.
We are not able to report accurate construction and demolition waste diversion statistics for our housing construction businesses due to difficulties with contractor reporting. However we are taking steps to improve in this area.
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