Būndi vs Salem
Side-by-side air quality comparison between Būndi and Salem.
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 | Salem |
|---|---|---|
| PM2.5(µg/m³) | 19.60 | 13.70 |
| PM10(µg/m³) | 30.30 | 16.40 |
| NO₂(µg/m³) | 5.70 | 15.30 |
| SO₂(µg/m³) | 4.00 | 9.30 |
| O₃(µg/m³) | 53.00 | 37.00 |
| CO(µg/m³) | 180.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Būndi averaged an AQI of 126 while Salem averaged 68 — a 58-point (85%) gap, with Būndi the more polluted and Salem the cleaner of the two. On 245 days when both cities reported, Salem was cleaner on 221 of them; the average daily gap was 70 AQI points.
Seasonality & days
Būndi peaks in January, while Salem peaks in April. Būndi logged 0% Severe days and 31% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Būndi 23 days, Salem 17 days.
Year-over-year progress
Būndi has improved by 18 AQI points (12.5%) from 2023 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Būndi reached AQI 353 at New Colony (RSPCB) on 2023-12-25; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Būndi spans 1 CPCB stations with a 0-point spread (min 133, max 133); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Salem has better air quality with an AQI of 23 compared to Būndi's 33.