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Gaya vs Mumbai

Side-by-side air quality comparison between Gaya and Mumbai.

Cleaner right now: Mumbai (32-pt gap)Historical head-to-head: Mumbai cleaner 1172/2341 daysYoY 20162024: Gaya -44.7% · Mumbai -4.1%

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

Gaya

Bihar, India

Satisfactory

PM2.5: 42.6 µg/m³

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VS
🏆 Cleaner

Mumbai

Maharashtra, India

Good

PM2.5: 20.9 µg/m³

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Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)
PollutantGayaMumbai
PM2.5(µg/m³)42.6020.90
PM10(µg/m³)66.8039.90
NO₂(µg/m³)0.804.80
SO₂(µg/m³)8.1010.50
O₃(µg/m³)165.0096.00
CO(µg/m³)239.00166.00

CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Gaya averaged an AQI of 110 while Mumbai averaged 93 — a 17-point (18%) gap, with Gaya the more polluted and Mumbai the cleaner of the two. On 2341 days when both cities reported, Mumbai was cleaner on 1172 of them; the average daily gap was 78 AQI points.

Seasonality & days

Gaya peaks in January, while Mumbai peaks in December. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Mumbai was 0.5% Severe and 34% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Mumbai 58 days.

Year-over-year progress

Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Mumbai has improved by 4 AQI points (4.1%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Mumbai hit AQI 500 at Vile Parle West (MPCB) on 2022-08-15.

Station-level disparity

Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); Mumbai spans 29 stations with a 74-point spread (min 77, max 151).

Verdict

🏆 Mumbai has better air quality with an AQI of 40 compared to Gaya's 72.

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