Būndi vs Kollam
Side-by-side air quality comparison between Būndi and Kollam.
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 | Būndi | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 21.50 | 4.60 |
| PM10(µg/m³) | 37.30 | 7.10 |
| NO₂(µg/m³) | 6.70 | 4.40 |
| SO₂(µg/m³) | 3.90 | 1.50 |
| O₃(µg/m³) | 48.00 | 30.00 |
| CO(µg/m³) | 189.00 | 89.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Būndi averaged an AQI of 126 while Kollam averaged 84 — a 42-point (50%) gap, with Būndi the more polluted and Kollam the cleaner of the two. On 430 days when both cities reported, Kollam was cleaner on 355 of them; the average daily gap was 66 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Būndi logged 0% Severe days and 31% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Būndi 23 days, Kollam 65 days.
Year-over-year progress
Būndi has improved by 18 AQI points (12.5%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Būndi reached AQI 353 at New Colony (RSPCB) on 2023-12-25; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Būndi spans 1 CPCB stations with a 0-point spread (min 133, max 133); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Būndi's 37.