Land use survey carried out by Think City in 2009 in George Town WHSBusiness
Source: Think City Sdn. Bhd.
Main land use categories in George Town WHS
Source: Think City Sdn. Bhd.
Penang: Water output and consumption (‘000 cubic metres), 2000–2010 and Jan-Aug 2011
Source: Derived from data provided by Perbadanan Bekalan Air Pulau Pinang Sdn Bhd (PBA).
Penang: Daily water supply, Jan-Aug 2010 and Jan-Aug 2011
Source: Derived from data provided by Perbadanan Bekalan Air Pulau Pinang Sdn Bhd (PBAPP).
Penang: Number of students taking public examinations and pass rates, 2005-2010
Source: Jabatan Pelajaran Negeri, Pulau Pinang.
Malaysia: STPM Pass Rate for Science and Mathematics Subjects, 2009-2010
Source: Majlis Peperiksaan Malaysia (www.mpm.edu.my/main.php)
Note: *Not taught in school (independent study or follow tuition class).
Full passing rate – Passes for all the papers (1, 2 and 3) in the particular subject.