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GEMS/Water Questionnaires

GEMS/Water Questionnaires. Intersecretariat Working Group on Environment Statistics, International Work Session on Water Statistics, Vienna, June 20-22, 2005. HOW TO ASSESS GLOBAL WATER QUALITY?. There are two approaches:

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GEMS/Water Questionnaires

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  1. GEMS/Water Questionnaires Intersecretariat Working Group on Environment Statistics, International Work Session on Water Statistics, Vienna, June 20-22, 2005

  2. HOW TO ASSESS GLOBAL WATER QUALITY? • There are two approaches: • Establish monitoring laboratories and staff worldwide to operate a global programme – this would be exorbitantly expensive and impossible at the present time. • Create a network of participating countries that provide data to a central global database. 5000000 Faecal Coliform (No./100 ml MPN) 0 1979 - 2002 Oxygen Dissolved (mg/L O2) Ahmadabad 1979 - 2002 600 Biochemical Oxygen Demand (mg/L O2) 0 1979 - 2 002

  3. GEMS/Water Data Collection • Voluntary – from national WQ programmes but also universities and other organizations – non-aggregated. • Living database. • Do not control type of data, analytical methods, frequency of analysis or submission to GEMS/Water. • Have three classes of stations: trend, impact and flux. • Historically data has been very classical but moving to collect ‘newer’ data including biological data.

  4. Global Water Quality Network

  5. Database Access & Data Distribution New online water quality database GEMStat –launched on March 22nd, World Water Day www.gemstat.org -- searchable • Station(s) selection • Time period • Parameter(s) selection • Statistical Analysis • promote access to information worldwide • promote interoperability and comparability of datasets • as up-to-date and comprehensive as possible

  6. UNEP GEMS/Water Programme Aare River at Brugg Figure 1: Station photograph Figure 2: Watershed Region Figure 3: Geographical Location

  7. UNEP GEMS/Water Programme Aare River at Brugg

  8. UNEP GEMS/Water Programme Thank You www.gemswater.org Canada, UNEP Nairobi

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