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Amritsar vs Kollam

Side-by-side air quality comparison between Amritsar and Kollam.

Cleaner right now: Kollam (69-pt gap)Historical head-to-head: Kollam cleaner 965/1333 daysYoY 20172024: Amritsar -24.4% · Kollam -2.3%

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

Amritsar

Punjab, India

Satisfactory

PM2.5: 46.2 µg/m³

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VS
🏆 Cleaner

Kollam

Kerala, India

Good

PM2.5: 4.9 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantAmritsarKollam
PM2.5(µg/m³)46.204.90
PM10(µg/m³)66.807.60
NO₂(µg/m³)16.302.70
SO₂(µg/m³)10.201.30
O₃(µg/m³)114.0040.00
CO(µg/m³)347.00107.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Amritsar averaged an AQI of 124 while Kollam averaged 84 — a 40-point (48%) gap, with Amritsar the more polluted and Kollam the cleaner of the two. On 1333 days when both cities reported, Kollam was cleaner on 965 of them; the average daily gap was 52 AQI points.

Seasonality & days

Amritsar peaks in November, while Kollam peaks in January. Amritsar logged 0.2% Severe days and 47.2% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Amritsar 40 days, Kollam 65 days.

Year-over-year progress

Amritsar has improved by 40 AQI points (24.4%) from 2017 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Amritsar reached AQI 459 at Golden Temple (PPCB) on 2018-06-14; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.

Station-level disparity

Amritsar spans 1 CPCB stations with a 0-point spread (min 119, max 119); 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 Amritsar's 77. That's a significant difference of 69 points.

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