Guwahati vs Thanjavur
Side-by-side air quality comparison between Guwahati and Thanjavur.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Guwahati | Thanjavur |
|---|---|---|
| PM2.5(µg/m³) | 32.70 | 11.60 |
| PM10(µg/m³) | 36.10 | 14.30 |
| NO₂(µg/m³) | 6.40 | 12.10 |
| SO₂(µg/m³) | 4.00 | 3.90 |
| O₃(µg/m³) | 84.00 | 34.00 |
| CO(µg/m³) | 393.00 | 153.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Thanjavur averaged 42 — a 81-point (193%) gap, with Guwahati the more polluted and Thanjavur the cleaner of the two. On 70 days when both cities reported, Thanjavur was cleaner on 68 of them; the average daily gap was 116 AQI points.
Seasonality & days
Guwahati peaks in January, while Thanjavur peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Thanjavur was 0% Severe and 98.60000000000001% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Thanjavur 21 days.
Year-over-year progress
The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Thanjavur hit AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Thanjavur spans 1 stations with a 0-point spread (min 42, max 42).
Verdict
🏆 Thanjavur has better air quality with an AQI of 19 compared to Guwahati's 55.