African Water Development Report 2006 - United Nations Economic ...

Table 6.4: Indication of the Microbiological Quality of some WaterSources in CameroonLocalityOrigin ofWaterNature of PollutionMesophilic No. of totalaerobic floragerms (x1000)Total Coliform E. coli FaecalStreptococci>100 to 20 to >> 1000 1000>100 >100 to> 1000AnaerobicSulphur reducersAbong-Mbang Urban Wells - >10 to> 20>100 0 to 10 000Urban Springs - 0 to> 100 0> 30River Nyong - 3 >100 0 20 10 000Batchingou, Nde Stream > 750 - > 100 0 > 25 0Division, WestProvince> 150 - > 100 0 > 10 > 1000Tombel, SouthWest ProvinceVillage standpipeCatchment, > 10 000 - 0 0 0 0KupeDrinking points > 10 000 - > 100 0 to 100 > 100 0Protecting Ecosystems in AfricaBanfeko, WestprovinceVillage Spring 50 - > 100 0 0 0Surface water > 100 000 - > 5 000 > 100 > 100 > 200WHO Standard,# of micro-organisms< 20 per ml < 20 per100 ml< 10 per 100ml0.0 per100 ml< 1 per100 ml< 1 per 20mlSource: Compiled from Nang-Nang (2002), Mbida-Mbida (2003), Halleson (2003), and Ngamo (2003)able 6.5: Quality of Surface and Ground Bodies in the CongoTowns Resources caught Water qualitySurface water Ground water pH Conductivity,ms.cm,BrazzavillePointe - NoireDolisieNkayiMossendjoOuessoXXXXxSource: AWDR NMational Report, 2003; SNDE and UREAX57.27.577.27.517.4335>100>1006068.2Dry residue,mg/l40>40>50Industrial waste are still discharged untreatedinto rivers and lakes in most African countries,causing a major and persistent health problems.Even though this phenomenon is still low inquantitative terms, the spread of the practice iswidening at an alarmingly rate, and fig. 6.4 belowimplicates some of the countries affected.133