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The Electrical and Mechanical Services Department (EMSD) today (November 7) announced the latest statistics for Legionella bacteria following sampling tests at selected fresh water cooling towers.
In October, the EMSD tested 80 water samples collected from cooling towers in 60 buildings. One sample was detected with a Legionella bacteria count (LBC) at or above the upper threshold, which is 1 000 colony-forming units per millilitre. The sample was collected from a cooling tower at Heng Hing Industrial Building, 8 Yip Cheong Street, Fanling.
The EMSD has issued a nuisance notice under the Public Health and Municipal Services Ordinance to the owner of the cooling tower requiring appropriate disinfection work to be taken. Disinfection of the cooling tower has been completed by the owner. Details of the case in October are available at
www.emsd.gov.hk/emsd/e_download/pps/others/Building_List_CT_NN.pdf.กก
The EMSD publishes on its website (www.emsd.gov.hk/emsd/eng/pps/oa_ct_stat.shtml) on a half-monthly basis the latest Legionella bacteria statistics following sampling tests at fresh water cooling towers. Also listed are any buildings where the LBC was found in the fresh water cooling tower to be equal to or above the upper threshold during the preceding three-month period, and which were thus served with nuisance notices.
A department spokesman said, "Fresh water cooling tower owners have the responsibility to design, operate and maintain cooling towers properly. They should arrange regular inspections, timely maintenance and periodic testing of the water quality of their cooling towers in accordance with the Code of Practice for Water-cooled Air Conditioning Systems issued by the EMSD in order to prevent the proliferation of Legionella bacteria."
Ends/Wednesday, November 7, 2012
Issued at HKT 14:33
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