Air Quality Lab — Pematangsiantar, Indonesia
Air Quality Profile·
Pematangsiantar reports an annual PM2.5 of 19.7 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Pematangsiantar
Indonesia
IndonesiaAnnual Average
ModerateWHO annual classification
19.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
2525 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
2323 µg/m³ — Moderate
2222 µg/m³ — Moderate
2121 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2121 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1313 µg/m³ — Fair
Best months: Oct–DecWorst months: Apr–May, Jul
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Indonesia
Pematangsiantar: 19.7 µg/m³. Typical range in Indonesia: 12.3–18.1 µg/m³. Low anchor: Ambon, 7.9 µg/m³. High anchor: Medan, 39.4 µg/m³.
291 cities tracked