Gangtok vs Motihari
Side-by-side air quality comparison between Gangtok and Motihari.
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 | Gangtok | Motihari |
|---|---|---|
| PM2.5(µg/m³) | 36.20 | 156.00 |
| PM10(µg/m³) | 45.30 | 175.10 |
| NO₂(µg/m³) | 11.20 | 76.90 |
| SO₂(µg/m³) | 2.50 | 22.40 |
| O₃(µg/m³) | 101.00 | 0.00 |
| CO(µg/m³) | 522.00 | 1456.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gangtok averaged an AQI of 48 while Motihari averaged 116 — a 68-point (142%) gap, with Motihari the more polluted and Gangtok the cleaner of the two. On 657 days when both cities reported, Gangtok was cleaner on 604 of them; the average daily gap was 98 AQI points.
Seasonality & days
Gangtok peaks in March, while Motihari peaks in November. Gangtok logged 0% Severe days and 96.2% Good-or-Satisfactory days; Motihari was 1.2% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Gangtok 94 days, Motihari 26 days.
Year-over-year progress
Gangtok has worsened by 14 AQI points (41.2%) from 2022 to 2024; Motihari has improved by 106 AQI points (47.7%) over the same window. The worst recorded day for Gangtok reached AQI 264 at Zero Point GICI (SSPCB) on 2023-01-16; Motihari hit AQI 448 at Gandak Colony (BSPCB) on 2022-11-17.
Station-level disparity
Gangtok spans 1 CPCB stations with a 0-point spread (min 50, max 50); Motihari spans 1 stations with a 0-point spread (min 153, max 153).
Verdict
🏆 Gangtok has better air quality with an AQI of 61 compared to Motihari's 328. That's a significant difference of 267 points.