Patna vs Tonk
Side-by-side air quality comparison between Patna and Tonk.
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 | Patna | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 97.80 | 27.80 |
| PM10(µg/m³) | 109.40 | 53.10 |
| NO₂(µg/m³) | 40.50 | 9.00 |
| SO₂(µg/m³) | 18.90 | 4.10 |
| O₃(µg/m³) | 52.00 | 47.00 |
| CO(µg/m³) | 667.00 | 206.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Patna averaged an AQI of 172 while Tonk averaged 142 — a 30-point (21%) gap, with Patna the more polluted and Tonk the cleaner of the two. On 589 days when both cities reported, Tonk was cleaner on 517 of them; the average daily gap was 114 AQI points.
Seasonality & days
Patna peaks in December, while Tonk peaks in November. Patna logged 7.5% Severe days and 19.400000000000002% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Patna 30 days, Tonk 11 days.
Year-over-year progress
Patna has improved by 40 AQI points (18.9%) from 2016 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Patna reached AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Patna spans 6 CPCB stations with a 39-point spread (min 154, max 193); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Tonk has better air quality with an AQI of 54 compared to Patna's 227. That's a significant difference of 173 points.