Torchiarolo, month by month

Torchiarolo has a measured daily mean on 2 days since 28 May 2026.

Every month since 2026

2026too few days for a mean (a year needs 199)2 days measured

JanFebMarAprMay2 daysJunnoneJulnoneAugnoneSepnoneOctnone

Each square is a month's mean PM2.5 in US AQI from Torchiarolo'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 Torchiarolo 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

6 months

Month	Why
Oct 2026	No day measured. The others: 6 with no readings from the monitors, 4 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks.
Sep 2026	No day measured. The others: 1 with no readings from the monitors, 29 with readings for part of the day (a day needs 18 hours).
Aug 2026	No day measured. The others: 4 with no readings from the monitors, 27 with readings for part of the day (a day needs 18 hours).
Jul 2026	No day measured. The others: 2 with no readings from the monitors, 29 with readings for part of the day (a day needs 18 hours).
Jun 2026	No day measured. The others: 1 with no readings from the monitors, 29 with readings for part of the day (a day needs 18 hours).
May 2026	2 of 31 days measured; a month needs 22. The others: 2 with readings for part of the day (a day needs 18 hours).

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

Torchiarolo's worst days

Day	US AQI
28 May 2026	6415.9 µg/m³
31 May 2026	6114.3 µg/m³

Daily means, the highest since 28 May 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, Torchiarolo, Italy, 28 May 2026 – 31 May 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/it/torchiarolo/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

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

Updated 2026-10-12 18:07 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).