Analyzed PM2.5, NO₂, and CO₂ datasets from public APIs and open data sources to uncover pollution hotspots, seasonal variations, and long-term emission trends. Gathered & processed large-scale air quality datasets ensuring data consistency and accuracy. Conducted exploratory data analysis (EDA) to identify key environmental patterns. Built interactive Tableau dashboards enabling geographic emission benchmarking for policy research & environmental monitoring. Created data visualizations in Python to complement dashboard insights.