Air Quality Lab — Guwahati, India
Air Quality Profile·
Guwahati reports an annual PM2.5 of 46.4 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Guwahati
India
IndiaAnnual Average
UnhealthyWHO annual classification
46.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
9494 µg/m³ — Hazardous
7474 µg/m³ — Very Unhealthy
6262 µg/m³ — Very Unhealthy
5151 µg/m³ — Very Unhealthy
3535 µg/m³ — Unhealthy
2929 µg/m³ — Poor
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3636 µg/m³ — Unhealthy
4040 µg/m³ — Unhealthy
6262 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
9494 µg/m³ — Hazardous
7474 µg/m³ — Very Unhealthy
6262 µg/m³ — Very Unhealthy
5151 µg/m³ — Very Unhealthy
3535 µg/m³ — Unhealthy
2929 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
3636 µg/m³ — Unhealthy
4040 µg/m³ — Unhealthy
6262 µg/m³ — Very Unhealthy
Best months: Jul–SepWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³Hazardous>75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across India
Guwahati: 46.4 µg/m³. Typical range in India: 32.5–54.7 µg/m³. Low anchor: Kollam, 24.5 µg/m³. High anchor: Durg, 120.1 µg/m³.
2,241 cities tracked