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Percentage of gazetted beaches ranked as poor/very poor

Statistics
Year 1986 1991 1996 1997 1998 1999 2000 2001
% 66.60 78.60 34.15 36.59 21.95 14.63 14.63 17.07
Year 2002 2003 2004 2005 2006 2007 2008 2009
% 19.51 17.07 17.07 17.07 17.07 17.07 17.07 7.30
Year 2010 2011 2012 2013 2014 2015 2016
% 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Operational Definitions
The percentage of gazzetted beaches ranked as poor/very poor according to the Water Quality Objectives (WQO). The objective set for all bathing beaches is that “the level of E.coli should not exceed 180 per ml for all samples collected from March to October (bathing season)” (Water Pollution Control Ordinance). The annual rank (excellent, good, fair, poor, very poor) of each of the beaches is determined with the monitoring data collected. Beaches with poor rating refer to beaches with more than an annual average geometric mean of 180 E.coli count per 100ml.
Footnote
All figures are collected from Census and Statistics Department since 1981.
Figures are extracted from Hong Kong Annual Digest of Statistics. The earliest figure available is that for 1988, which is used as a proxy for 1986. No data is available for 1981.
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