Delhi vs Sasaram
Side-by-side air quality comparison between Delhi and Sasaram.
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 | Sasaram |
|---|---|---|
| PM2.5(µg/m³) | 74.70 | 42.10 |
| PM10(µg/m³) | 170.40 | 62.90 |
| NO₂(µg/m³) | 33.60 | 2.20 |
| SO₂(µg/m³) | 36.40 | 10.70 |
| O₃(µg/m³) | 119.00 | 146.00 |
| CO(µg/m³) | 608.00 | 395.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Sasaram averaged 109 — a 101-point (93%) gap, with Delhi the more polluted and Sasaram the cleaner of the two. On 933 days when both cities reported, Sasaram was cleaner on 897 of them; the average daily gap was 173 AQI points.
Seasonality & days
Delhi peaks in November, while Sasaram peaks in January. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Sasaram 27 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Sasaram has better air quality with an AQI of 71 compared to Delhi's 150. That's a significant difference of 79 points.