Romania · The summary is refreshed every 15 minutes.
November 12
The air is unhealthy now
Measured 22:00–23:47
Voluntari
9°C
Cloudy
1011
hPaAtmospheric
pressure
92%
Humidity
Voluntari, 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): 57.9 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON
Right now in Voluntari, PM2.5 averages 57.9 µg/m³ — “unhealthy” on the US EPA scale (approximate, from hourly readings). Mean of 5 sensors from Government stations, AirGradient, readings from 22:00–23:47 local time (20:00–21:47 UTC), summary prepared at 00:00 local time. Median: 43.0 µg/m³; range across sensors: 28.0–111.3 µg/m³.
In Voluntari the air is unhealthy 🔴 AQI 153. Higher than three hours ago. ☁️ +9 °C · No precipitation · Wind 1 m/s
In Voluntari the air is unhealthy right now (approximate, US EPA scale). From 11:00 to 00:00 local time the city mean PM2.5 rose from 27.0 to 57.9 µg/m³. The highest hour was 21:00 with 113.0 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 (92%) possibly makes optical sensors read somewhat higher.
Weather now: cloudy, 9°C, wind 1 m/s, humidity 92%. Precipitation is expected around 00:00; it may wash particles out. By 11:00 the temperature will be about 14°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, SW
0.1 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.
44/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
18°/8°
Index by time of day
56/100Moderate
Night
Morning
Day
Evening23°/12°
Index by time of day
54/100Moderate
NightMorningDayEvening15°/3°
Index by time of day
34/100Low
NightMorningDayEvening9°/1°
Index by time of day
55/100Moderate
NightMorningDayEvening9°/-2°
Index by time of day
59/100Moderate
NightMorningDayEvening10°/2°
Index by time of day
51/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
9°
Cloudy. Feels like 8°C
10°C93%18°C68%14°C85%1m/sWind from the SW
2m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
Romania
18°C8°C23°C12°C15°C3°C
9°C1°C9°C-2°C10°C2°C12°C3°C
15°C6°C16°C8°C
Highest current reading: 111.3 µg/m³ (Voluntari Mihai Viteazul). Lowest: 28.0 µg/m³ ("B8 Balotesti" (Bucuresti_RNMCA)). The list shows every sensor, highest first.
Source: atmy.ai monitoring network
Sensors in the summary by network: Government stations — 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 Voluntari 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 Voluntari, PM2.5 averages 57.9 µg/m³ — “unhealthy” on the US EPA scale (approximate, from hourly readings). Mean of 5 sensors from Government stations, AirGradient, readings from 22:00–23:47 local time (20:00–21:47 UTC), summary prepared at 00:00 local time. Median: 43.0 µg/m³; range across sensors: 28.0–111.3 µg/m³.
The current level is “unhealthy” (US EPA scale, approximate). Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it. This is the standard guidance of the scale, not medical advice.
Highest current reading: 111.3 µg/m³ (Voluntari Mihai Viteazul). Lowest: 28.0 µg/m³ ("B8 Balotesti" (Bucuresti_RNMCA)). 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
