This deep dive covers Deep Dive: Water Pollution Sources within Water Treatment for GCSE Chemistry. Revise Water Treatment in Using Resources for GCSE Chemistry with 20 exam-style questions and 15 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 2 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 13
Practice
20 questions
Recall
15 flashcards
💧 Deep Dive: Water Pollution Sources
Water pollution comes from three main sources that contaminate our rivers, lakes, and groundwater supplies.
🏭 Industrial
- Heavy metals (lead, mercury)
- Chemical solvents
- Hot water (thermal pollution)
- Acids and alkalis
🚜 Agricultural
- Fertilizers (nitrates, phosphates)
- Pesticides and herbicides
- Animal waste (bacteria)
- Soil erosion (sediment)
🏠 Domestic
- Sewage (bacteria, viruses)
- Detergents (phosphates)
- Oil and grease
- Microplastics
Environmental impact: Pollutants cause eutrophication (algae blooms), kill aquatic life, contaminate drinking water supplies, and create dead zones in water bodies.