SmogRank / Gujranwala / Mountain View

Gujranwala vs Mountain View: PM2.5 compared

Over the last year, Gujranwala's air was about 22.1× as polluted as Mountain View's: PM2.5 averaged 143.9 µg/m³ against 6.5, on the 173 days both cities were measured. Gujranwala had the dirtier air on 173 of those days, Mountain View on 0. Gujranwala was over the WHO's daily guideline of 15 µg/m³ on 173 of them, Mountain View on 22.

Right now

Gujranwala#3on the 24-hour board of 2,753, at 171 US AQI (84.6 µg/m³)
Mountain View#2,355on the 24-hour board of 2,753, at 16 US AQI (2.9 µg/m³)

The last year, day by day

Gujranwala
Mountain View
Each city's daily mean from 9 Oct 2025 to 8 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Gujranwala, Nov 2025: 239.3 µg/m³Mountain View, Nov 2025: 8.0 µg/m³Nov2025Gujranwala, Dec 2025: 287.0 µg/m³Mountain View, Dec 2025: 13.7 µg/m³DecGujranwala, Jan 2026: 183.9 µg/m³Mountain View, Jan 2026: 8.9 µg/m³Jan2026Gujranwala, Feb 2026: 166.6 µg/m³Mountain View, Feb 2026: 6.6 µg/m³FebGujranwala, Mar 2026: 62.1 µg/m³Mountain View, Mar 2026: 3.7 µg/m³MarAprMayJunJulGujranwala, Aug 2026: 56.2 µg/m³Mountain View, Aug 2026: 3.8 µg/m³AugGujranwala, Sep 2026: 73.9 µg/m³Mountain View, Sep 2026: 2.7 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Gujranwala. Faded: Mountain View. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

YearGujranwalaMountain ViewDays both measuredDays Gujranwala was worse
2026 so far18528129129
2025374534444

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

Gujranwala

Mountain View

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

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).

Mountain View

Side by side with Sunnyvale (the nearest), Mecca (United States's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Gujranwala and Mountain View, 9 Oct 2025 – 8 Oct 2026, smogrank.com/compare/pk-gujranwala/us-mountain-view (accessed 9 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 2026-10-09 12:07 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).