Siwan vs Tonk
Side-by-side air quality comparison between Siwan 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, Siwan averaged an AQI of 148 while Tonk averaged 142 — a 6-point (4%) gap, with Siwan the more polluted and Tonk the cleaner of the two. On 439 days when both cities reported, Tonk was cleaner on 236 of them; the average daily gap was 65 AQI points.
Seasonality & days
Siwan peaks in January, while Tonk peaks in November. Siwan logged 5.2% Severe days and 17.7% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Siwan 13 days, Tonk 11 days.
Year-over-year progress
Siwan has improved by 184 AQI points (55.4%) from 2021 to 2024; Tonk has improved by 14 AQI points (9%) over the same window. The worst recorded day for Siwan reached AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Siwan spans 1 CPCB stations with a 0-point spread (min 197, max 197); Tonk spans 1 stations with a 0-point spread (min 148, max 148).