Gaya vs Kalyān
Side-by-side air quality comparison between Gaya and Kalyān.
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 | Gaya | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 57.70 | 22.80 |
| PM10(µg/m³) | 67.50 | 40.50 |
| NO₂(µg/m³) | 19.60 | 23.40 |
| SO₂(µg/m³) | 12.20 | 22.10 |
| O₃(µg/m³) | 62.00 | 18.00 |
| CO(µg/m³) | 427.00 | 187.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gaya averaged an AQI of 110 while Kalyān averaged 95 — a 15-point (16%) gap, with Gaya the more polluted and Kalyān the cleaner of the two. On 1377 days when both cities reported, Kalyān was cleaner on 925 of them; the average daily gap was 64 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Kalyān 78 days.
Year-over-year progress
Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Kalyān has better air quality with an AQI of 41 compared to Gaya's 96. That's a significant difference of 55 points.