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2016 Voter Registration Statistics API available

2016 Voter Registration Statistics (Geographical Constituency, Functional Constituency, Election Committee Subsector)

2017 Voter Registration Statistics API available

2017 Voter Registration Statistics (Geographical Constituency, Functional Constituency, Election Committee Subsector)

2018 Voter Registration Statistics

2018 Voter Registration Statistics (Geographical Constituency, Functional Constituency, Election Committee Subsector)

Beach Water Quality Grading

Latest information on beach water quality grading

Current Air Quality Health Index of individual Air Quality Monitoring stations

Current Air Quality Health Index (AQHI) at individual general and roadside Air Quality Monitoring stations

Current air quality health index range and forecast

Current range and forecast of Air Quality Health Index (AQHI) at general and roadside stations

Election Result of 2015 District Council Ordinary Election API available

Election Result of 2015 District Council Ordinary Election

Election Result of 2016 Election Committee Subsector Elections API available

Election Result of 2016 Election Committee Subsector Elections

Election Result of 2016 Legislative Council General Election API available

Election Result of 2016 Legislative Council General Election

Election Result of 2016 Legislative Council New Territories East Geographical Constituency By-election

Election Result of 2016 Legislative Council New Territories East Geographical Constituency By-election

Historical Beach Water Quality Data (Simplified Chinese Version)

Beach Water Quality data from 1986 to 2018 (Simplified Chinese Version)

Historical Beach Water Quality Data (Traditional Chinese Version)

Beach Water Quality data from 1986 to 2018 (Traditional Chinese Version)

Historical E. coli levels in Victoria Harbour from Central/Wan Chai to Siu Sai Wan since 2004

E. coli levels in Victoria Harbour from Central/Wan Chai to Siu Sai Wan from 2004 to 2019

Historical Marine Water Quality Data (English Version)

Marine Water Quality data at different Marine Water Quality Monitoring stations from 1986 to 2017 (English Version)