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Kozhikode vs Sasaram

Side-by-side air quality comparison between Kozhikode and Sasaram.

Cleaner right now: Kozhikode (123-pt gap)Historical head-to-head: Kozhikode cleaner 297/347 daysYoY 20202023: Kozhikode +59.2% · Sasaram -60.4%

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

🏆 Cleaner

Kozhikode

Kerala, India

Good

PM2.5: 4.3 µg/m³

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VS

Sasaram

Bihar, India

Moderate

PM2.5: 69.8 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantKozhikodeSasaram
PM2.5(µg/m³)4.3069.80
PM10(µg/m³)9.5080.30
NO₂(µg/m³)0.7015.10
SO₂(µg/m³)0.3014.40
O₃(µg/m³)64.00101.00
CO(µg/m³)171.00627.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2023, Kozhikode averaged an AQI of 78 while Sasaram averaged 109 — a 31-point (40%) gap, with Sasaram the more polluted and Kozhikode the cleaner of the two. On 347 days when both cities reported, Kozhikode was cleaner on 297 of them; the average daily gap was 125 AQI points.

Seasonality & days

Both cities see their worst air in January on average. Kozhikode logged 0.1% Severe days and 99% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Kozhikode 83 days, Sasaram 27 days.

Year-over-year progress

Kozhikode has worsened by 29 AQI points (59.2%) from 2020 to 2023; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Kozhikode reached AQI 417 at Palayam Kozhikode (PCB) on 2021-01-25; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.

Station-level disparity

Kozhikode spans 1 CPCB stations with a 0-point spread (min 59, max 59); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).

Verdict

🏆 Kozhikode has better air quality with an AQI of 10 compared to Sasaram's 133. That's a significant difference of 123 points.

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