🌫️ Exam Summary: Urban air pollution (8.3)
Key Idea: Know primary vs secondary pollutants, the key health and environmental impacts, and management using tech + policy + behaviour.
🧪 Sources & chemistry (high yield)
🫁 Impacts (use cause → effect chains)
🛠️ Management (compare approaches)
In 7–9 markers: compare multiple strategies and evaluate using effectiveness, cost, equity, feasibility and trade-offs (link to EVSs where relevant).