Guwahati vs Noida
Side-by-side air quality comparison between Guwahati and Noida.
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 | Noida |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 69.60 |
| PM10(µg/m³) | 36.00 | 137.40 |
| NO₂(µg/m³) | 5.40 | 30.10 |
| SO₂(µg/m³) | 4.20 | 17.90 |
| O₃(µg/m³) | 97.00 | 65.00 |
| CO(µg/m³) | 393.00 | 562.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Noida averaged 182 — a 59-point (48%) gap, with Noida the more polluted and Guwahati the cleaner of the two. On 1749 days when both cities reported, Guwahati was cleaner on 1436 of them; the average daily gap was 112 AQI points.
Seasonality & days
Guwahati peaks in January, while Noida peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Noida was 8.9% Severe and 16.5% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Noida 14 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Noida has improved by 79 AQI points (30.3%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Noida hit AQI 500 at Sector-1 (UPPCB) on 2019-11-01.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Noida spans 4 stations with a 15-point spread (min 195, max 210).
Verdict
🏆 Guwahati has better air quality with an AQI of 54 compared to Noida's 133. That's a significant difference of 79 points.