Mangalore vs Shillong
Side-by-side air quality comparison between Mangalore and Shillong.
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 | Mangalore | Shillong |
|---|---|---|
| PM2.5(µg/m³) | 7.50 | 20.40 |
| PM10(µg/m³) | 13.10 | 23.70 |
| NO₂(µg/m³) | 5.40 | 4.20 |
| SO₂(µg/m³) | 1.80 | 5.70 |
| O₃(µg/m³) | 43.00 | 99.00 |
| CO(µg/m³) | 169.00 | 305.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Mangalore averaged an AQI of 61 while Shillong averaged 75 — a 14-point (23%) gap, with Shillong the more polluted and Mangalore the cleaner of the two. On 574 days when both cities reported, Shillong was cleaner on 426 of them; the average daily gap was 30 AQI points.
Seasonality & days
Both cities see their worst air in February on average. Mangalore logged 0% Severe days and 87.2% Good-or-Satisfactory days; Shillong was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Mangalore 64 days, Shillong 113 days.
Year-over-year progress
Mangalore has improved by 9 AQI points (12.9%) from 2021 to 2024; Shillong has worsened by 41 AQI points (120.6%) over the same window. The worst recorded day for Mangalore reached AQI 235 at Kadri (KSPCB) on 2023-11-17; Shillong hit AQI 212 at Lumpyngngad Shillong (PCB) on 2024-02-19.
Station-level disparity
Mangalore spans 1 CPCB stations with a 0-point spread (min 68, max 68); Shillong spans 2 stations with a 2-point spread (min 42, max 44).
Verdict
🏆 Mangalore has better air quality with an AQI of 13 compared to Shillong's 34.