Kochi vs Nalbāri
Side-by-side air quality comparison between Kochi and Nalbāri.
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 | Kochi | Nalbāri |
|---|---|---|
| PM2.5(µg/m³) | 7.80 | 57.90 |
| PM10(µg/m³) | 9.90 | 64.70 |
| NO₂(µg/m³) | 10.00 | 7.60 |
| SO₂(µg/m³) | 2.70 | 5.20 |
| O₃(µg/m³) | 24.00 | 112.00 |
| CO(µg/m³) | 125.00 | 397.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Nalbāri averaged 129 — a 38-point (42%) gap, with Nalbāri the more polluted and Kochi the cleaner of the two. On 329 days when both cities reported, Kochi was cleaner on 249 of them; the average daily gap was 81 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Nalbāri was 0% Severe and 41% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Nalbāri 18 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Nalbāri has improved by 72 AQI points (35.8%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Nalbāri hit AQI 384 at Bata Chowk (PCBA) on 2024-01-08.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Nalbāri spans 1 stations with a 0-point spread (min 141, max 141).
Verdict
🏆 Kochi has better air quality with an AQI of 13 compared to Nalbāri's 97. That's a significant difference of 84 points.