How Water Chemistry Affects Lakes and Rivers

The pH of water determines whether a lake or river is healthy for fish and plants.
Dissolved oxygen is vital for aquatic life—too little, and ecosystems can collapse.
Nutrients like nitrogen and phosphorus fuel algae blooms that deplete oxygen.
Hardness in water comes from calcium and magnesium, shaping aquatic habitats.
Carbon dioxide levels influence acidity and the balance of aquatic ecosystems.
Heavy metals like mercury can accumulate in food chains, harming wildlife and people.
Temperature changes affect how gases and minerals dissolve in water.
Conductivity reveals how many dissolved salts and minerals are in a lake or river.
Pollution alters water chemistry, leading to dead zones and biodiversity loss.
Monitoring water chemistry helps scientists protect freshwater resources for future generations.