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 Data Policy

GAW Data Policy
"For Scientific purposes, access to these data is unlimited and provided without charge. By their use you accept that an offer of co-authorship will be made through personal contact with the data providers or owners whenever substantial use is made of their data. In all cases, an acknowledgement must be made to the data providers or owners and to the data centre when these data are used within a publication."

 Version

 2026-04-21-0253 (Last updated: 2026-04-30)

 File

This data set is submitted by HKO.

DL Gas Species Station/Mobile Organization Type Period Filename Size Plot
222Rn King's Park HKO hourly 2026-01-01 00:00:00 - 2026-03-31 23:00:00 222rn_hko2033_surface-insitu_27_9999-9999_hourly (Text: 0.36MB ; NetCDF: 0.54MB ) png

Text NetCDF

Download Data Files:


In line with the GAW Data Policy, users should contact the contributors of all data of interest and propose co-authorship or acknowledgement.


 Organization

NO 27
Acronym HKO
Name Hong Kong Observatory
Address 1
Address 2 Hong Kong Observatory
Address 3 134A Nathan Road, Kowloon, Hong Kong.
Country/Territory Hong Kong, China
Website http://www.hko.gov.hk

 Contact(s)

Name P. Cheung
Prefix Mr.
Email picheung@hko.gov.hk
Organization No 27
Organization acronym HKO
Organization name Hong Kong Observatory
Organization country/territory Hong Kong, China
Address 1 Units 2304-2309, 23rd floor, Mira Place Tower A,
Address 2 132 Nathan Road, Tsim Sha Tsui, Kowloon
Address 3 Hong Kong, China
Country/territory Hong Kong, China
Tel +852 29268421
Fax +852 23752645
Last updated date 2026-04-21


Name L.P. Ho
Prefix Dr.
Email lpho@hko.gov.hk
Organization No 27
Organization acronym HKO
Organization name Hong Kong Observatory
Organization country/territory Hong Kong, China
Address 1 Units 2304-2309, 23rd floor, Mira Place Tower A,
Address 2 132 Nathan Road, Tsim Sha Tsui, Kowloon
Address 3 Hong Kong, China
Country/territory Hong Kong, China
Tel +852 29268415
Fax +852 23752645
Last updated date 2026-04-21


 Background observation
 UTC+08:00
 Bq/m3
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: NIST
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: Model Pylon AB7 equipped with the trace environmental level detector(Alpha Detection)
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: 2 (m)
 hourly
 The Calibration by Pylon Electronics Inc. of radon Lucas cells is done through comparisons against both NIST traceable liquid radium standards (accurate to 1.5%) and other calibrated radon generators (accurate to 4%)
 
 [Hourly]
 [Daily]
 [Monthly]
 
 Operational/Reporting
 
 Wind direction:
 Wind speed:
 Relative humidity:
 Precipitation amount:
 Air pressure:
 Air temperature:
 Dew point temperature:
 Sea water temperature:
 Sea surface water temperature:
 Sea water salinity:
 Sea surface water salinity:
Meteorological data may remain as first provided, even when greenhouse gas data are updated.
 
No DOI available

 Related information

Format Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF
Relation List (Is Part Of)
Geolocation Point
Latitude (north: +; south: -) 22.3118972778
Longitude (east: +; west: -) 114.1728744507

 GAW Data Policy

"For Scientific purposes, access to these data is unlimited and provided without charge. By their use you accept that an offer of co-authorship will be made through personal contact with the data providers or owners whenever substantial use is made of their data. In all cases, an acknowledgement must be made to the data providers or owners and to the data centre when these data are used within a publication."

 Citation format

This format is an example of the WDCGG standard citation.
Please follow the citation format which the data providers or owners indicate.
P. Cheung (HKO), L.P. Ho (HKO), Atmospheric 222Rn at King's Park by Hong Kong Observatory, dataset published as 222Rn_HKO2033_surface-insitu_HKO_data1 at WDCGG, ver. 2026-04-21-0253 (Reference date*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.

 Reference(s)

No data available