3. W e th W te c msfro h re e a r o e m Surface
WaterGroundwater17%83%
4. Dis u no wter - M3 trib tio f a Drinking Water Industry
Irrigation311,00 290,00306,00
5. Cleaning and maintenance: cars and gardens; 6%Domestic
cleaning; 6%Drink; 1%Cooking; 6%Bath and Shower; 39% Dishes;
10%Washing; 10% Sanitary; 20%
6. W te Qua (100 isthebest quality) a r lity Bacteriology
88,495,1Nitrates Pesticides92,5
7. 250200150 Toulouse100500Niamey (Sahel)
8. Test on the water : Group Results River "Garonne""Canal du
Midi""Bazacle"FountainsRain water WellSpring WaterTap
Water10-10-10-10-10-101010 25100-2525 100-101GENERAL HARDNESS GH (6
16)161616168 168 16 8 16 CARBONATE HARDNESS KH (3 10)61,5 10 3-
61515 2015 2010pH (6,5 8,5)6,4-
8,46,8-7,66,8-7,86,4-7,66,8-7,66,8-7,87,2CHORINE (CL2)
(0)00-0,80,80-1,5000,8Parameters (N) NITRITE NO 2 (1mg/l)NITRATE NO
3 (50mg/l)