Dindigul vs Samastipur
Side-by-side air quality comparison between Dindigul and Samastipur.
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 | Dindigul | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 18.20 | 118.00 |
| PM10(µg/m³) | 19.70 | 134.60 |
| NO₂(µg/m³) | 28.00 | 61.60 |
| SO₂(µg/m³) | 2.70 | 18.30 |
| O₃(µg/m³) | 1.00 | 5.00 |
| CO(µg/m³) | 215.00 | 837.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Dindigul averaged an AQI of 61 while Samastipur averaged 134 — a 73-point (120%) gap, with Samastipur the more polluted and Dindigul the cleaner of the two. On 247 days when both cities reported, Dindigul was cleaner on 225 of them; the average daily gap was 101 AQI points.
Seasonality & days
Dindigul peaks in February, while Samastipur peaks in January. Dindigul logged 0% Severe days and 67.3% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Dindigul 22 days, Samastipur 9 days.
Year-over-year progress
Dindigul has improved by 29 AQI points (32.2%) from 2022 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Dindigul reached AQI 352 at Mendonsa Colony (TNPCB) on 2023-03-12; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Dindigul spans 1 CPCB stations with a 0-point spread (min 102, max 102); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Dindigul has better air quality with an AQI of 30 compared to Samastipur's 293. That's a significant difference of 263 points.