The data shows a slight year-on-year decline in PM2.5 levels from 2024 (18.86 µg/m³) to 2028 (18.34 µg/m³). Specifically, the year-on-year declines are as follows: -0.69% (2025), -0.69% (2026), -0.70% (2027), and -0.70% (2028). These percentages indicate a consistent decreasing trend. The compound annual growth rate (CAGR) over the five-year period is approximately -0.69%, reflecting a steady reduction in PM2.5 levels.
Future trends to watch include policy implementations targeting industrial emissions, advancements in clean energy, and urban air quality management programs. Monitoring these areas will provide insights into the continued efforts to improve air quality in Indonesia.
