Sustainability Report 2012 • 67
Unit
2012
2011
2010
2009
2008
Waste Avoidance / Recycling (Hong Kong)
Chemical waste generated
Daily average
93
51
178
64
185
in kg (Kg per million
(1.23)
(0.67)
(2.37)
(0.87)
(2.45)
MJ of town gas)
Spent catalyst collected for
Metric tonnes
35.3
41.1
36
12
114
metal recovery
Metal chemical drums reused
Number
318
216
161
211
201
Plastic chemical drums reused
Number
969
1,064
818
882
878
Spent lube oil recycled
Metric tonnes
25.3
16.1
15.17
3.41
5.85
Scrap Metal recycled -
Metric tonnes
926
840
989
930
891
Old gas appliances
Scrap Metal recycled -
Metric tonnes
35
11
47
125
116
From construction and
maintenance of plant and pipelines
PE pipe recycled
Metric tonnes
10.7
27.0
11.66
10.9
10.5
Abandoned aquaknect hoses
Number
10,768
9,084
17,221
23,024
26,012
Abandoned service pipes and fittings
Kg
1,174
2,206
3,509
10,715
6,434
Gas appliances polyfoam
Metric tonnes
1.52
2.19
4.33
4.12
5.04
packaging materials avoided
Awareness Raising and Training (Hong Kong)
In-house environmental training
Number of
1,951
549
4,008
3,036
967
(Hong Kong)
man-hours
External environmental training
Number of
1,120.3
255
773
403
890
(Hong Kong)
man-hours
Environmental training for JVs
Number of attendants
262
213
135
168
48
Remarks:
1 Contractor employees are excluded.
2 Employees of subsidiaries are excluded.
3 Only Towngas employees in Hong Kong are included.
4 Emissions were revised due to a change in calculation method according to EMSD/EPD accounting guidelines. Recalculated values
may be slightly different from figures provided in previous company publications.
# These figures are the savings achieved compared with the data of a reference year before implementing the respective
environmental initiative.
* The default value to account for the GHG Emission Factor of electricity sold to customers in Hong Kong is 0.7kg/kwh. Reference:
Guidelines to Account for and Report on Greenhouse Gas Emissions and Removals for Buildings of Commercial, Residential or
Institutional Purposes in Hong Kong (by EPD & EMSD)
