Delhi vs Guwahati
Side-by-side air quality comparison between Delhi and Guwahati.
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 | Delhi | Guwahati |
|---|---|---|
| PM2.5(µg/m³) | 78.20 | 33.80 |
| PM10(µg/m³) | 154.10 | 37.10 |
| NO₂(µg/m³) | 47.90 | 6.60 |
| SO₂(µg/m³) | 33.40 | 4.00 |
| O₃(µg/m³) | 43.00 | 81.00 |
| CO(µg/m³) | 545.00 | 397.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Guwahati averaged 123 — a 87-point (71%) gap, with Delhi the more polluted and Guwahati the cleaner of the two. On 2111 days when both cities reported, Guwahati was cleaner on 2006 of them; the average daily gap was 161 AQI points.
Seasonality & days
Delhi peaks in November, while Guwahati peaks in January. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Guwahati was 0.1% Severe and 44.9% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Guwahati 105 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Guwahati has worsened by 14 AQI points (12.8%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Guwahati hit AQI 420 at Railway Colony (PCBA) on 2023-01-15.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Guwahati spans 4 stations with a 26-point spread (min 118, max 144).
Verdict
🏆 Guwahati has better air quality with an AQI of 57 compared to Delhi's 161. That's a significant difference of 104 points.