Hisar vs Nagapattinam
Side-by-side air quality comparison between Hisar and Nagapattinam.
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 | Hisar | Nagapattinam |
|---|---|---|
| PM2.5(µg/m³) | 75.70 | 12.50 |
| PM10(µg/m³) | 224.40 | 16.20 |
| NO₂(µg/m³) | 34.70 | 9.80 |
| SO₂(µg/m³) | 8.30 | 4.10 |
| O₃(µg/m³) | 43.00 | 38.00 |
| CO(µg/m³) | 508.00 | 211.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hisar averaged an AQI of 136 while Nagapattinam averaged 60 — a 76-point (127%) gap, with Hisar the more polluted and Nagapattinam the cleaner of the two. On 37 days when both cities reported, Nagapattinam was cleaner on 36 of them; the average daily gap was 143 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Hisar logged 1.6% Severe days and 29.700000000000003% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Hisar 34 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Hisar reached AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Hisar spans 1 CPCB stations with a 0-point spread (min 168, max 168); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Nagapattinam has better air quality with an AQI of 21 compared to Hisar's 183. That's a significant difference of 162 points.