Bulandshahr vs Perundurai
Side-by-side air quality comparison between Bulandshahr and Perundurai.
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, Bulandshahr averaged an AQI of 142 while Perundurai averaged 75 — a 67-point (89%) gap, with Bulandshahr the more polluted and Perundurai the cleaner of the two. On 57 days when both cities reported, Perundurai was cleaner on 56 of them; the average daily gap was 137 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Perundurai was 0% Severe and 80.7% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Perundurai 13 days.
Year-over-year progress
The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Perundurai hit AQI 153 at SIPCOT Industrial Park (TNPCB) on 2024-11-12.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Perundurai spans 1 stations with a 0-point spread (min 75, max 75).