Tuesday, October 27, 2009

IWA-Aspire Conference 2009 on water (Taipei, 18-22 Oct 2009)

Here is a my poster presentation for the recent International Water Association (IWA) - Asia Pacific Regional Group (Aspire) 2009 Conference on water issues in Taipei. It touches on "Starting a water quality monitoring programme in the nature reserves of Singapore". The "nature reserves" are Sungei Buloh Wetland Reserve (SBWR), Bukit Timah Nature Reserve (BTNR) and Nee Soon freshwater swamp. The time period stretched from 2006 - 2008.

Some highlights of the presentation:
  1. At SBWR, the water quality was either relatively unpolluted or weakly polluted. However, some concerns were raised regarding the low levels of DO (minimum of 2.5mg/L) and relatively high levels of phosphorus, nitrogen (ammonia and nitrate) and E. coli.
  2. The waters in BTNR were relatively clean except for the high levels of acidity (minimum of 1.7) at all three sampling stations and incidences of low DO (minimum of 3.2 mg/L).
  3. Similarly, in Nee Soon Freshwater Swamp, incidences of low DO (minimum of 1.9) and pH
    (minimum of 1.1) have been recorded. Such a low pH was unusual even for an acidic swamp like Nee Soon.

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