Ludhiana vs Thanjavur
Side-by-side air quality comparison between Ludhiana 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 | Ludhiana | Thanjavur |
|---|---|---|
| PM2.5(µg/m³) | 81.70 | 11.30 |
| PM10(µg/m³) | 109.20 | 13.50 |
| NO₂(µg/m³) | 40.40 | 11.10 |
| SO₂(µg/m³) | 15.20 | 3.80 |
| O₃(µg/m³) | 35.00 | 34.00 |
| CO(µg/m³) | 797.00 | 157.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2021, Ludhiana averaged an AQI of 117 while Thanjavur averaged 42 — a 75-point (179%) gap, with Ludhiana the more polluted and Thanjavur the cleaner of the two.
Seasonality & days
Both cities see their worst air in November on average. Ludhiana logged 0.3% Severe days and 53.599999999999994% Good-or-Satisfactory days; Thanjavur was 0% Severe and 98.60000000000001% Good-or-Satisfactory. Longest clean-air streaks: Ludhiana 53 days, Thanjavur 21 days.
Year-over-year progress
The worst recorded day for Ludhiana reached AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14; Thanjavur hit AQI 140 at Parisutham Nagar (TNPCB) on 2024-11-01.
Station-level disparity
Ludhiana spans 1 CPCB stations with a 0-point spread (min 118, max 118); 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 Ludhiana's 173. That's a significant difference of 154 points.