Greece · The summary is refreshed every 15 minutes.
No current value: fewer than four sensors at different places are reporting now.
Larissa, November 10, 2026: daily mean PM2.5 28 µg/m³ (6 sensors), level “Moderate” — as in the Atmy Data Hub. Open methodology and data in JSON: Methodology and data sources · JSON
In Larissa the air is unhealthy for sensitive groups right now (approximate, US EPA scale). From 11:00 to 22:00 local time the city mean PM2.5 rose from 16.7 to 38.3 µg/m³. The highest hour was 20:00 with 61.5 µg/m³.
Light wind (1 m/s) in the evening or at night, as the air cools, possibly traps particles near the ground (a temperature inversion). High humidity (93%) possibly makes optical sensors read somewhat higher.
Weather now: cloudy, 13°C, wind 1 m/s, humidity 93%. No major change in the wind is expected in the coming hours. By 11:00 the temperature will be about 16°C.
Written automatically at 23:10 local time (21:10 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
1 m/s
Wind, W
0 mm
Precipitation today
28 µg/m³ Moderate
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 28 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub.
43/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
23°/11°
Index by time of day
53/100Moderate
Night
Morning
Day
Evening24°/14°
Index by time of day
61/100Moderate
NightMorningDayEvening24°/12°
Index by time of day
56/100Moderate
NightMorningDayEvening13°/11°
Index by time of day
42/100Moderate
NightMorningDayEvening14°/9°
Index by time of day
52/100Moderate
NightMorningDayEvening13°/8°
Index by time of day
54/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
13°
Cloudy. Feels like 13°C
12°C98%
22°C72%16°C81%1m/sWind from the W
2m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
Greece
23°C11°C24°C14°C24°C12°C
13°C11°C14°C9°C13°C8°C15°C8°C24°C12°C
22°C10°C53
ThessalonikiGreece
22DramaGreece
3PtolemaidaGreece
3Cities with the most sensors
All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.
Daily mean PM2.5 of the city sensors, µg/m³
Click a day to see its date and value.
Greece · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 28 µg/m³ from 6 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 1 of 4 cities in Greece and No. 196 of 676 worldwide, from the most polluted.
Fresh data for Larissa are insufficient (last update: 22:45 local time, 20:45 UTC). Open the map for the latest readings of individual sensors.
From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.
The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.
The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.
“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.
Source: public Atmy monitoring data. Methodology and data sources · Data terms
