Delhi vs Hisar
Side-by-side air quality comparison between Delhi 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 | Delhi | Hisar |
|---|---|---|
| PM2.5(µg/m³) | 78.20 | 75.00 |
| PM10(µg/m³) | 154.10 | 231.00 |
| NO₂(µg/m³) | 47.90 | 42.00 |
| SO₂(µg/m³) | 33.40 | 7.20 |
| O₃(µg/m³) | 43.00 | 25.00 |
| CO(µg/m³) | 545.00 | 573.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Hisar averaged 136 — a 74-point (54%) gap, with Delhi the more polluted and Hisar the cleaner of the two. On 1672 days when both cities reported, Hisar was cleaner on 1651 of them; the average daily gap was 126 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Hisar was 1.6% Severe and 29.700000000000003% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Hisar 34 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Hisar has improved by 39 AQI points (22.3%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Hisar hit AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Hisar spans 1 stations with a 0-point spread (min 168, max 168).
Verdict
🏆 Delhi has better air quality with an AQI of 161 compared to Hisar's 187.