Performance
Data

Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Waste sent to landfill (absolute) Tonnes 17,054 18,196 21,167 21,934 23,422 25,373
Waste sent to landfill (intensity) kg per passenger 0.311 0.318 0.349 0.339 0.336 0.360
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
HKIA's recycling rate Percentage 11.3 12.2 12.1 12.2 7.5 8.4
Recyclables collected kg per passenger 0.040 0.044 0.048 0.047 0.027 0.033
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Paper and cardboard Tonnes 1,599 1,840 2,474 2,578 1,593 1,801
Plastic Tonnes 53 78 128 142 176 274
Metal and cans Tonnes 48 58 82 97 38 61
Wooden pallets and boxes Tonnes 52 14 10 5 28 31
Glass Tonnes 11 7 5 2 3 10
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Food Waste[1]
To compost Tonnes 73 77 83 87 22 24
To fishmeal Tonnes 1,061 1,180 1,352 1,150 1,324 2,131
Surplus food via the HKIA Food Rescue Programme[2] Tonnes - - 8.7 17.5 36.0 37.3
  • [1]Food waste was collected from AAHK’s facilities (convert to compost and fishmeal), and airport business partners (convert to fishmeal only).
  • [2]The HKIA Food Rescue Programme was launched in August 2013.
  • [1]Food waste was collected from AAHK’s facilities (convert to compost and fishmeal), and airport business partners (convert to fishmeal only).
  • [2]The HKIA Food Rescue Programme was launched in August 2013.
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Chemical waste collected[1] Tonnes 9 19 21 10 9 23
  • [1]AAHK adopts the ‘chemical waste’ categorisation as specified under the Waste Disposal Ordinance (Chapter 354, The Laws of Hong Kong). The figure includes waste lubricating oil and used mercury-containing fluorescent tubes collected by registered chemical waste collector for disposal.
  • [1]AAHK adopts the ‘chemical waste’ categorisation as specified under the Waste Disposal Ordinance (Chapter 354, The Laws of Hong Kong). The figure includes waste lubricating oil and used mercury-containing fluorescent tubes collected by registered chemical waste collector for disposal.
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Diesel Litres 760,659 822,722 841,982 1,087,730 1,059,614 961,940
Petrol Litres 160,492 144,504 122,186 107,837 112,298 120,192
LPG Litres 23,808 5,019 9,476 15,923 12,627 6,367
Total fuel consumption[1] GJ 35,036 36,363 36,892 43,131 42,180 38,762
  • [1]Relevant conversion factors sourced from '2017 Key World Energy Statistics of International Energy Agency' and 'BP Statistical Review of World Energy June 2017' were applied.
  • [1]Relevant conversion factors sourced from '2017 Key World Energy Statistics of International Energy Agency' and 'BP Statistical Review of World Energy June 2017' were applied.
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Electricity kWh ('000) 279,784 279,636 268,602 282,565 279,461 308,327
Electricity consumption per passenger kWh per passenger 5.10 4.89 4.43 4.37 4.00 4.38
Unit 2011 2012 2013 2014 2015 2016
Scope 1 – Direct emissions Tonnes ('000) of CO₂e 12.02 13.28 8.32 8.73 9.15 7.60
Scope 2 – Energy indirect emissions Tonnes ('000) of CO₂e 163.96 161.45 169.64 178.43 150.08 165.25
Scope 3 – Other indirect emissions[2] Tonnes ('000) of CO₂e 0.38 0.44 0.60 0.53 0.52 0.43
Emissions avoided by tree planting and paper recycling Tonnes ('000) of CO₂e 0.32 0.34 0.37 0.35 0.45 0.61
  • [1]GHG emissions are reported for the calendar year. The methodologies and emission factors applied for the development of a GHG emissions inventory were in accordance with the ‘Guidelines to Account for and Report on Greenhouse Gas Emissions and Removals for Buildings (Commercial, Residential or Institutional Purposes) in Hong Kong, 2010 Edition’ issued by Electrical and Mechanical Services Department and Environmental Protection Department. AAHK follows the operational control approach in defining its organisational boundary which covers buildings and facilities that AAHK has control over. The inventory covered seven types of GHG, namely carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF₆) and chlorodifluoromethane (HCFC-22). The inventory of GHG emissions has been verified by TÜV Rheinland Hong Kong Ltd.
  • [2]Scope 3 emissions are the GHG generated from paper disposal at landfill and electricity consumption for processing fresh water and sewage.
  • [1]GHG emissions are reported for the calendar year. The methodologies and emission factors applied for the development of a GHG emissions inventory were in accordance with the ‘Guidelines to Account for and Report on Greenhouse Gas Emissions and Removals for Buildings (Commercial, Residential or Institutional Purposes) in Hong Kong, 2010 Edition’ issued by Electrical and Mechanical Services Department and Environmental Protection Department. AAHK follows the operational control approach in defining its organisational boundary which covers buildings and facilities that AAHK has control over. The inventory covered seven types of GHG, namely carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulphur hexafluoride (SF₆) and chlorodifluoromethane (HCFC-22). The inventory of GHG emissions has been verified by TÜV Rheinland Hong Kong Ltd.
  • [2]Scope 3 emissions are the GHG generated from paper disposal at landfill and electricity consumption for processing fresh water and sewage.
Unit 2011 2012 2013 2014 2015 2016
GHG net emissions (absolute) Tonnes ('000) of CO₂e 176.04 174.83 178.19 187.34 159.30 172.67
GHG net emissions (intensity) kg CO₂e / WLU[1] 1.89 1.81 1.76 1.75 1.42 1.49
  • [1]One workload unit (WLU) is either 1 passenger or 100kg of cargo.
  • [1]One workload unit (WLU) is either 1 passenger or 100kg of cargo.
Unit 2011 2012 2013 2014 2015 2016
Stationary combustion Tonnes ('000) of CO₂e 0.23 0.13 0.07 0.10 0.09 0.13
Mobile combustion Tonnes ('000) of CO₂e 2.25 2.44 2.50 2.79 3.08 2.70
Fugitive emissions Tonnes ('000) of CO₂e 9.54 10.71 5.75 5.84 5.98 4.77
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Water withdrawal by source
Seawater* m³ ('000) 83,050 79,333 78,988 85,788 90,179 91,739
Municipal water m³ ('000) 424 438 709 656 610 377
Water recycled/reused m³ ('000) 199 210 154 179 185 204
Total water discharge[2] m³ ('000) 225 228 555 477 425 173
  • [1]AAHK adopts a "triple water system" to improve the efficiency of our three major water sources: freshwater, seawater and treated wastewater, details of which are available on our website.
  • [2]The volume of wastewater discharge is estimated by subtracting the volume of wastewater recycled from our municipal water consumption. Under the Water Pollution Control Ordinance (Chapter 358, The Laws of Hong Kong), AAHK holds a number of licences which require the monitoring of water quality using the following parameters: flow rate (m³/day), total residue chlorine, amines, temperature, antifoulant, suspended solids, chemical oxygen demand, oil and grease, surfactants (total), biochemical oxygen demand, total phosphorus and formaldehyde. In 2016/17, all discharges were in compliance with licence discharge limits.
  • *The 2015/16 figure has been restated following an internal database review.
  • [1]AAHK adopts a "triple water system" to improve the efficiency of our three major water sources: freshwater, seawater and treated wastewater, details of which are available on our website.
  • [2]The volume of wastewater discharge is estimated by subtracting the volume of wastewater recycled from our municipal water consumption. Under the Water Pollution Control Ordinance (Chapter 358, The Laws of Hong Kong), AAHK holds a number of licences which require the monitoring of water quality using the following parameters: flow rate (m³/day), total residue chlorine, amines, temperature, antifoulant, suspended solids, chemical oxygen demand, oil and grease, surfactants (total), biochemical oxygen demand, total phosphorus and formaldehyde. In 2016/17, all discharges were in compliance with licence discharge limits.
  • *The 2015/16 figure has been restated following an internal database review.
Unit 2011/12 2012/13 2013/14 2014/15 2015/16 2016/17
Aircraft fuel spillage Number of spills 2 15 24 12 25 17