SPECIAL REPORT: SUSTAINABILITY
HKIA 2008 greenhouse gas emission by sector (company type) (tonnes of CO2
-e)
Sources of greenhouse gas emission in HKIA (tonnes of CO2
-e)
% Freight forwarding
Aircraft maintenance service Government Others
Ground support equipment maintenance Airport Authority Hong Kong Aviation fuel facility Air cargo
Airline headquarters Ramp handling Catering
Food & beverage
2.86 6.68 2.62 6.93 0.49
38.01 0.90
16.47 6.12 3.32
14.65 0.95
maintenance and construction contractors, airlines and handling agents as well as major franchisees. Waste minimisation workshops are provided and AAHK is working one-on-one with signifi cant waste generators to drive increased waste separation. AAHK also co-ordinates with key waste management contractors on
handling the increasing volumes of source-separated waste. Our redesigned recycling bins in public areas at the airport also serve to encourage trash recycling by passengers.
Effi cient airport design HKIA has incorporated much effi ciency into airport layouts, buildings and infrastructure. For example, airport layout facilitates effi cient movement of people, cargo and planes. Terminals were designed to be thermally effi cient, making use of modern glassing systems and building envelopes to refl ect summer heat and reduce cooling loads. Roof skylights optimise natural light during daytime. Effi cient seawater cooling systems dovetail with innovative indoor cooling infrastructure. In Terminal 1, for instance, only the bottom three metres of the large open indoor spaces are cooled leaving the air above at ambient
temperatures. The grey-water collection and treatment systems allow signifi cant re-use of wastewater. As new facilities continue to come on stream, AAHK is working
to ensure that key infrastructure is as environmentally effi cient as possible. All signifi cant new airport development is required to identify at the early planning and design stages all opportunities for enhancing environmental effi ciencies and minimising impacts on the environment. The process requires that planners and designers:
• Evaluate available green/smart building technologies and materials that enhance effi ciency and minimise environmental impact, and make recommendations for the appropriate green/smart buildings design concepts;
• Incorporate and implement the agreed green elements in subsequent design and construction stages and obtain third-party verifi cation that environmental effi ciencies are achieved; and
• Propose appropriate rating or certifi cation systems to facilitate measurement against accepted standards for environmental effi ciency applicable in Hong Kong.
AIRPORT WORLD/AUGUST-SEPTEMBER 2010 43 Scope 2 towngas
Mobile combustion services Scope 1 towngas
Refrigeration emissions
Generators and other equipments Electricity
% 1.3
8.4 6.1 5.1 2.2
76.9
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