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Key Statistics 87
Environmental Training
Unit
2016
2015
2014
2013
2012
In-house staff
environmental
training
Hours
1,653
865
1,012
1,420
1,951
External staff
environmental
training
Hours
431
386
349
818
1,120
Unit
2016
2015
2014
2013
2012
Hazardous waste
12
Chemical waste
generated
Daily average in kg
(kg per million MJ
of town gas)
167 (2.10)
49 (0.64)
83 (1.07)
150 (1.94)
93 (1.23)
Spent catalyst
collected for
metal recovery
Tonnes
18.5
11.7
23.6
39.7
35.3
Spent lube oil
recycled
Tonnes
45.6
13.2
25.2
46.7
25.3
Others
Metal chemical
drums reused
Number
41
18
15
90
318
Plastic chemical
drums reused
Number
1,021
1,927
1,030
914
969
Scrap metal
recycled – old
gas appliances
Tonnes
1,218
1,265
1,229
1,278
926
Scrap metal
recycled – from
construction and
maintenance
of plant and
pipelines
Tonnes
34
77
23
28
35
PE pipe recycled Tonnes
30.9
23.6
17.8
12.6
10.7
Gas appliances
polyfoam
packaging
materials avoided
Tonnes
1.56
1.56
1.29
1.31
1.52