SmogRank / Australia / South Australia / Happy Valley

Happy Valley, month by month

Happy Valley has a measured daily mean on 5 days since 8 October 2026.

Every month since 2026

2026too few days for a mean (a year needs 200)5 days measured

JanFebMarAprMayJunJulAugSepOct5 days

Each square is a month's mean PM2.5 in US AQI from Happy Valley's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Happy Valley marked; each year, the year's.

Good0–50

Moderate51–100

Sensitive groups101–150

Unhealthy151–200

Very unhealthy201–300

Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

1 month

Month	Why
Oct 2026	5 of 12 days measured; a month needs 9.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Happy Valley's worst days

Day	US AQI
10 Oct 2026	386.8 µg/m³
11 Oct 2026	336.0 µg/m³
12 Oct 2026	305.4 µg/m³
8 Oct 2026	254.5 µg/m³
9 Oct 2026	234.1 µg/m³

Daily means, the highest since 8 Oct 2026; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Happy Valley, Australia, 8 Oct 2026 – 12 Oct 2026. Monitor data from EPA South Australia, read from the publisher; sources listed at smogrank.com/sources. smogrank.com/au/happy-valley/history (accessed 12 Oct 2026).

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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.

Happy Valley now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 17:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).