Romania · The summary is refreshed every 15 minutes.
November 12
The air is moderate now
Târgu Mureș
8°C
Rain
1009
hPaAtmospheric
pressure
90%
Humidity
Târgu Mureș, November 10, 2026: daily mean PM2.5 34 µg/m³ (5 sensors), level “Moderate” — as in the Atmy Data Hub. Now (00:00 local time): 27.8 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON
Right now in Târgu Mureș, PM2.5 averages 27.8 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 5 sensors from Sensor.Community, AirGradient, readings from 23:48–23:58 local time (21:48–21:58 UTC), summary prepared at 00:00 local time. Median: 16.7 µg/m³; range across sensors: 12.9–54.0 µg/m³.
In Târgu Mureș the air is moderate 🟡 AQI 86. About the same as three hours ago. 🌧️ +8 °C · Precipitation 0.1 mm · Wind 1 m/s
In Târgu Mureș the air is moderate right now (approximate, US EPA scale). From 11:00 to 00:00 local time the city mean PM2.5 rose from 12.6 to 27.8 µg/m³. The highest hour was 21:00 with 38.6 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 (90%) possibly makes optical sensors read somewhat higher.
Weather now: rain, 8°C, wind 1 m/s, humidity 90%. Precipitation is expected around 03:00; it may wash particles out. By 11:00 the temperature will be about 11°C.
Written automatically at 00:00 local time (22:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
1 m/s
Wind, E
14.2 mm
Precipitation today
34 µg/m³ Moderate
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 34 µg/m³ from 5 sensors that passed the quality check — the same value as in the Atmy Data Hub.
45/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
13°/8°
Index by time of day
52/100Moderate
Night
Morning
Day
Evening19°/5°
Index by time of day
38/100Moderate
NightMorningDayEvening7°/0°
Index by time of day
33/100Low
NightMorningDayEvening7°/-4°
Index by time of day
56/100Moderate
NightMorningDayEvening8°/-5°
Index by time of day
54/100Moderate
NightMorningDayEvening11°/2°
Index by time of day
51/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
8°
Rain. Feels like 6°C
9°C94%
13°C88%12°C93%1m/sWind from the E
3m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
Romania
13°C8°C19°C5°C7°C0°C
7°C-4°C8°C-5°C11°C2°C13°C0°C
13°C5°C12°C5°C
Highest current reading: 54.0 µg/m³ (Depozitelor). Lowest: 12.9 µg/m³ (SC #64541). The list shows every sensor, highest first.
Source: atmy.ai monitoring network
Sensors in the summary by network: Sensor.Community — 4 sensors, AirGradient — 1 sensor.
Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.
116
BucharestRomania
36Cluj-NapocaRomania
23IașiRomania
11Cities 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.
An Atmy card with the air quality in Târgu Mureș now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.
Romania · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 34 µg/m³ from 5 sensors that passed the quality check — the same value as in the Atmy Data Hub.
Right now in Târgu Mureș, PM2.5 averages 27.8 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 5 sensors from Sensor.Community, AirGradient, readings from 23:48–23:58 local time (21:48–21:58 UTC), summary prepared at 00:00 local time. Median: 16.7 µg/m³; range across sensors: 12.9–54.0 µg/m³.
The current level is “moderate” (US EPA scale, approximate). Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors. This is the standard guidance of the scale, not medical advice.
Highest current reading: 54.0 µg/m³ (Depozitelor). Lowest: 12.9 µg/m³ (SC #64541). The list shows every sensor, highest first.
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
