Agartala vs Shillong
Side-by-side air quality comparison between Agartala 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 | Agartala | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 37.30 | 18.30 |
| PM10(µg/m³) | 40.40 | 21.80 |
| NO₂(µg/m³) | 23.00 | 3.60 |
| SO₂(µg/m³) | 3.10 | 6.20 |
| O₃(µg/m³) | 23.00 | 109.00 |
| CO(µg/m³) | 281.00 | 309.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Agartala averaged an AQI of 140 while Shillong averaged 75 — a 65-point (87%) gap, with Agartala the more polluted and Shillong the cleaner of the two. On 677 days when both cities reported, Shillong was cleaner on 611 of them; the average daily gap was 82 AQI points.
Seasonality & days
Agartala peaks in January, while Shillong peaks in February. Agartala logged 0% Severe days and 52.900000000000006% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Agartala 87 days, Shillong 113 days.
Year-over-year progress
Agartala has improved by 13 AQI points (8.5%) from 2020 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Agartala reached AQI 364 at Kunjaban Agartala (SPCB) on 2022-12-16; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Agartala spans 2 CPCB stations with a 10-point spread (min 109, max 119); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Shillong has better air quality with an AQI of 31 compared to Agartala's 63.