Bulandshahr vs Puducherry
Side-by-side air quality comparison between Bulandshahr and Puducherry.
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 | Bulandshahr | Puducherry |
|---|---|---|
| PM2.5(µg/m³) | 69.20 | 16.40 |
| PM10(µg/m³) | 121.10 | 19.20 |
| NO₂(µg/m³) | 22.90 | 18.50 |
| SO₂(µg/m³) | 11.10 | 8.80 |
| O₃(µg/m³) | 91.00 | 37.00 |
| CO(µg/m³) | 455.00 | 394.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Puducherry averaged 55 — a 87-point (158%) gap, with Bulandshahr the more polluted and Puducherry the cleaner of the two. On 1362 days when both cities reported, Puducherry was cleaner on 1215 of them; the average daily gap was 111 AQI points.
Seasonality & days
Bulandshahr peaks in November, while Puducherry peaks in December. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Puducherry was 0% Severe and 95.4% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Puducherry 117 days.
Year-over-year progress
Bulandshahr has improved by 82 AQI points (36.6%) from 2018 to 2024; Puducherry has worsened by 1 AQI points (1.9%) over the same window. The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Puducherry hit AQI 274 at Jawahar Nagar (PPCC) on 2022-10-25.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Puducherry spans 1 stations with a 0-point spread (min 56, max 56).
Verdict
🏆 Puducherry has better air quality with an AQI of 27 compared to Bulandshahr's 131. That's a significant difference of 104 points.