SmogRank / Norwich / Gujranwala

Norwich vs Gujranwala: PM2.5 compared

Over the last year, Gujranwala's air was about 19.3× as polluted as Norwich's: PM2.5 averaged 169.4 µg/m³ against 8.8, on the 140 days both cities were measured. Gujranwala had the dirtier air on 140 of those days, Norwich on 0. Gujranwala was over the WHO's daily guideline of 15 µg/m³ on 140 of them, Norwich on 18.

Right now

Norwich#639on the 24-hour board of 738, at 14 US AQI (2.6 µg/m³)
Gujranwala–not on the 24-hour board right now

The last year, day by day

Norwich
Gujranwala
Each city's daily mean from 8 Oct 2025 to 7 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Norwich, Nov 2025: 5.2 µg/m³Gujranwala, Nov 2025: 245.7 µg/m³Nov2025Norwich, Dec 2025: 7.2 µg/m³Gujranwala, Dec 2025: 255.6 µg/m³DecNorwich, Jan 2026: 10.0 µg/m³Gujranwala, Jan 2026: 179.3 µg/m³Jan2026Norwich, Feb 2026: 10.8 µg/m³Gujranwala, Feb 2026: 170.3 µg/m³FebNorwich, Mar 2026: 11.0 µg/m³Gujranwala, Mar 2026: 77.2 µg/m³MarAprMayJunJulAugSepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Norwich. Faded: Gujranwala. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

YearNorwichGujranwalaDays both measuredDays Norwich was worse
2026 so far53216890
2025331981310

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Norwich

Gujranwala

Daily means in US AQI, with µg/m³ beside them, since the index stops at its top value, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Norwich

Side by side with Halesworth (the nearest), London (United Kingdom's worst on 30 days).

Gujranwala

Side by side with Sialkot (the nearest), Peshawar (Pakistan's 2nd worst on 30 days), Kinshasa (the world's 2nd worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Norwich and Gujranwala, 8 Oct 2025 – 7 Oct 2026, smogrank.com/compare/gb-norwich/pk-gujranwala (accessed 8 Oct 2026).

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-08 20:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).