Bettiah vs Delhi
Side-by-side air quality comparison between Bettiah and Delhi.
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 | Bettiah | Delhi |
|---|---|---|
| PM2.5(µg/m³) | 99.70 | 78.20 |
| PM10(µg/m³) | 113.90 | 154.10 |
| NO₂(µg/m³) | 54.20 | 47.90 |
| SO₂(µg/m³) | 11.70 | 33.40 |
| O₃(µg/m³) | 4.00 | 43.00 |
| CO(µg/m³) | 1655.00 | 545.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Delhi averaged 210 — a 83-point (65%) gap, with Delhi the more polluted and Bettiah the cleaner of the two. On 810 days when both cities reported, Bettiah was cleaner on 735 of them; the average daily gap was 143 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Delhi was 18.7% Severe and 1.7% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Delhi 3 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Delhi has improved by 42 AQI points (16.7%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Delhi hit AQI 500 at Ashok Vihar (DPCC) on 2024-11-18.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Delhi spans 39 stations with a 84-point spread (min 178, max 262).
Verdict
🏆 Delhi has better air quality with an AQI of 161 compared to Bettiah's 233. That's a significant difference of 72 points.