Alwar vs Ludhiana
Side-by-side air quality comparison between Alwar and Ludhiana.
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 | Alwar | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 58.40 | 81.70 |
| PM10(µg/m³) | 169.00 | 109.20 |
| NO₂(µg/m³) | 17.10 | 40.40 |
| SO₂(µg/m³) | 7.70 | 15.20 |
| O₃(µg/m³) | 58.00 | 35.00 |
| CO(µg/m³) | 391.00 | 797.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Alwar averaged an AQI of 88 while Ludhiana averaged 117 — a 29-point (33%) gap, with Ludhiana the more polluted and Alwar the cleaner of the two. On 1334 days when both cities reported, Alwar was cleaner on 740 of them; the average daily gap was 43 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Alwar logged 0% Severe days and 70.2% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Alwar 97 days, Ludhiana 53 days.
Year-over-year progress
Alwar has improved by 125 AQI points (58.7%) from 2017 to 2024; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Alwar reached AQI 356 at Moti Doongri (RSPCB) on 2017-11-11; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Alwar spans 1 CPCB stations with a 0-point spread (min 95, max 95); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Alwar has better air quality with an AQI of 147 compared to Ludhiana's 173.