Worst air pollution Ploieşti, today and tomorrow
Today (10 August): Air quality in Ploieşti is fair. O3 and PM1 are fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 11:00 PM (NO2: 59.4/100).
Tomorrow (11 August 2026): Air quality in Ploieşti is poor. AQI worsens to poor; NO2 increases to poor; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 64.9/100). Airmine updates local air quality forecasts four times daily.
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Ploiești's air quality faces significant challenges from the surrounding Prahova Valley petroleum refining complex, with multiple refineries historically making this Romania's oil capital and generating some of southeastern Europe's highest industrial SO₂, benzene, and PM2.5 concentrations. The flat Wallachian plain generally provides reasonable wind dispersal, while the Carpathian foothills to the north create partial topographic enclosure that can concentrate refinery plumes over the city under northerly backing wind conditions.
Today - 10 August | Pollution peaks at 23:00
AQI:
Medium
59.4/100
PM2.5 (fine particles):
Good
16.5/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Medium
59.4/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
7.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.2/100
PM1 (ultrafine particles):
Fair
21.3/100
Levels show the poorest local air quality during the day
Tomorrow - 11 August | Pollution peaks at 23:00
AQI:
Poor
64.9/100
PM2.5 (fine particles):
Good
19.6/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Poor
64.9/100
O3 (ozone):
Medium
49.8/100
SO2 (sulfur dioxide):
Good
10.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.3/100
PM1 (ultrafine particles):
Fair
24.4/100
Pollen forecast in Ploieşti
View pollen forecastFrequently Asked Questions
Is air quality bad in Ploieşti right now?
On 10 August 2026, overall air quality in Ploieşti is fair. O3 is the main pollutant at 38.0/100. Pollution peaks around 11:00 PM (NO2: 59.4/100).
Will air quality be worse tomorrow in Ploieşti?
On 11 August 2026, air quality conditions in Ploieşti will be worse than today, with AQI forecast at poor at 64.9/100. Pollution peaks around 11:00 PM (NO2: 64.9/100).
When is air pollution at its worst in Ploieşti?
Air quality dips in Ploieşti mostly track local tree and grass allergens peaks and periods of multiple refineries historically making this Romania's oil capital; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Ploieşti based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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