Bihar Sharif vs Shillong
Side-by-side air quality comparison between Bihar Sharif and Shillong.
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 | Bihar Sharif | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 17.90 |
| PM10(µg/m³) | 79.40 | 21.40 |
| NO₂(µg/m³) | 27.20 | 3.10 |
| SO₂(µg/m³) | 14.60 | 6.20 |
| O₃(µg/m³) | 64.00 | 118.00 |
| CO(µg/m³) | 543.00 | 304.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Shillong averaged 75 — a 40-point (53%) gap, with Bihar Sharif the more polluted and Shillong the cleaner of the two. On 419 days when both cities reported, Shillong was cleaner on 355 of them; the average daily gap was 130 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Shillong peaks in February. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Shillong 113 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 30 compared to Bihar Sharif's 140. That's a significant difference of 110 points.