Water Quality And Availability (Copy)
4.5 Water Quality and Availability – Cheat Sheet
Availability of Safe Drinking Water (Potable Water)
| Region Type | Characteristics | Example |
|---|---|---|
| Water-Rich Regions | Abundant rainfall, rivers, lakes, aquifers; easier access to potable water | Canada, Norway |
| Water-Poor Regions | Arid climates, unreliable rainfall, overused aquifers; dependence on costly alternatives (e.g., desalination) | Middle East (Saudi Arabia, UAE) |
| Urban Areas | Better infrastructure, piped water supply, water treatment plants → generally higher access | London, Singapore |
| Rural Areas | Limited infrastructure; rely on wells, rivers, unprotected sources → greater risk of unsafe water | Sub-Saharan Africa villages |
Key Issues
| Issue | Explanation | Example |
|---|---|---|
| Water Conflict | Competing demands for limited water supplies cause disputes between countries/regions | River Nile (Egypt vs Ethiopia over GERD dam) |
| Pollution | Industrial discharge, sewage, agricultural chemicals reduce safe drinking water availability | Ganges River, India |
| Inequality | MEDCs have higher per capita safe water access vs LEDCs | 99% safe access in Europe vs <50% in some African nations |
Quick Pointers
- WHO standard: potable water = free of harmful contaminants, safe to drink.
- Global goal = UN Sustainable Development Goal 6 (Clean water & sanitation for all).
- Water scarcity + population growth → rising risk of “water wars” in the future.
Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Environmental Management Full Scale Course