Air Quality Lab — Kollam, India
Air Quality Profile·
Kollam reports an annual PM2.5 of 24.5 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Kollam
India
IndiaAnnual Average
ModerateWHO annual classification
24.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3535 µg/m³ — Unhealthy
3636 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
2424 µg/m³ — Moderate
1919 µg/m³ — Moderate
1616 µg/m³ — Moderate
1616 µg/m³ — Moderate
1818 µg/m³ — Moderate
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
3131 µg/m³ — Poor
3030 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
3535 µg/m³ — Unhealthy
3636 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
2424 µg/m³ — Moderate
1919 µg/m³ — Moderate
1616 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1616 µg/m³ — Moderate
1818 µg/m³ — Moderate
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
3131 µg/m³ — Poor
3030 µg/m³ — Poor
Best months: Jul, Sep–OctWorst months: Jan–Mar
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across India
Kollam: 24.5 µg/m³. Typical range in India: 32.5–54.7 µg/m³. Low anchor: Leh, 9.0 µg/m³. High anchor: Durg, 120.1 µg/m³.
2,241 cities tracked