Guwahati vs Hisar
Side-by-side air quality comparison between Guwahati and Hisar.
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 | Hisar |
|---|---|---|
| PM2.5(µg/m³) | 31.90 | 75.70 |
| PM10(µg/m³) | 36.00 | 224.40 |
| NO₂(µg/m³) | 5.40 | 34.70 |
| SO₂(µg/m³) | 4.20 | 8.30 |
| O₃(µg/m³) | 97.00 | 43.00 |
| CO(µg/m³) | 393.00 | 508.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Guwahati averaged an AQI of 123 while Hisar averaged 136 — a 13-point (11%) gap, with Hisar the more polluted and Guwahati the cleaner of the two. On 1609 days when both cities reported, Guwahati was cleaner on 1044 of them; the average daily gap was 90 AQI points.
Seasonality & days
Guwahati peaks in January, while Hisar peaks in November. Guwahati logged 0.1% Severe days and 44.9% Good-or-Satisfactory days; Hisar was 1.6% Severe and 29.700000000000003% Good-or-Satisfactory. Longest clean-air streaks: Guwahati 105 days, Hisar 34 days.
Year-over-year progress
Guwahati has worsened by 14 AQI points (12.8%) from 2019 to 2024; Hisar has improved by 39 AQI points (22.3%) over the same window. The worst recorded day for Guwahati reached AQI 420 at Railway Colony (PCBA) on 2023-01-15; Hisar hit AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02.
Station-level disparity
Guwahati spans 4 CPCB stations with a 26-point spread (min 118, max 144); Hisar spans 1 stations with a 0-point spread (min 168, max 168).
Verdict
🏆 Guwahati has better air quality with an AQI of 54 compared to Hisar's 183. That's a significant difference of 129 points.