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Environment Protection Department
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Marine Water Quality Data

Raw data of marine water and sediment quality are available on this website. The data can be inquired in graphical format (only 1 monitoring station and only 1 water quality parameter for each inquiry) or downloaded in CSV (comma separated values) format. CSV files can be opened by most common spreadsheet software or database software. To obtain the raw data,please fill in the form below and then click "Select".

Please select Marine Water or Marine Sediment.

Please select Display or Download.
Map of Water Control Zone
TOLO_HARBOUR_AND_CHANNEL_WATER_CONTROL_ZONESOUTHERN_WATER_CONTROL_ZONEPORT_SHELTER_WATER_CONTROL_ZONEJUNK_BAY_WATER_CONTROL_ZONEDEEP_BAY_WATER_CONTROL_ZONEMIRS_BAY_WATER_CONTROL_ZONENORTH_WESTERN_WATER_CONTROL_ZONEWESTERN_BUFFER_WATER_CONTROL_ZONEEASTERN_BUFFER_WATER_CONTROL_ZONEVICTORIA_HARBOUR_WATER_CONTROL_ZONE
Environmental Protection Department of HKSAR