Patna vs Surat
Side-by-side air quality comparison between Patna and Surat.
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 | Surat |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 23.90 |
| PM10(µg/m³) | 111.80 | 45.10 |
| NO₂(µg/m³) | 49.30 | 22.90 |
| SO₂(µg/m³) | 18.10 | 38.50 |
| O₃(µg/m³) | 19.00 | 33.00 |
| CO(µg/m³) | 704.00 | 249.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Patna averaged an AQI of 172 while Surat averaged 83 — a 89-point (107%) gap, with Patna the more polluted and Surat the cleaner of the two. On 608 days when both cities reported, Surat was cleaner on 561 of them; the average daily gap was 160 AQI points.
Seasonality & days
Patna peaks in December, while Surat peaks in November. Patna logged 7.5% Severe days and 19.400000000000002% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Patna 30 days, Surat 55 days.
Year-over-year progress
Patna has improved by 40 AQI points (18.9%) from 2016 to 2024; Surat has improved by 139 AQI points (62.6%) over the same window. The worst recorded day for Patna reached AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Patna spans 6 CPCB stations with a 39-point spread (min 154, max 193); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Surat has better air quality with an AQI of 45 compared to Patna's 231. That's a significant difference of 186 points.