Shillong vs Tonk
Side-by-side air quality comparison between Shillong and Tonk.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Shillong averaged an AQI of 75 while Tonk averaged 142 — a 67-point (89%) gap, with Tonk the more polluted and Shillong the cleaner of the two. On 170 days when both cities reported, Shillong was cleaner on 146 of them; the average daily gap was 72 AQI points.
Seasonality & days
Shillong peaks in February, while Tonk peaks in November. Shillong logged 0% Severe days and 92% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Shillong 113 days, Tonk 11 days.
Year-over-year progress
Shillong has worsened by 41 AQI points (120.6%) from 2019 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Shillong reached AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Shillong spans 2 CPCB stations with a 2-point spread (min 42, max 44); Tonk spans 1 stations with a 0-point spread (min 148, max 148).