Air quality in Ploiești, Romania today

Mr. Duck’s Air Quality Score

Good air today for Ploiești, Romania

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Ploiești is classified as Good today. The primary pollutant measured is PM10, with a reported concentration of 17.53 µg/m³ based on the latest data set.

A total of 27 valid measurements were recorded for this assessment. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The dataset for Ploiești contains measurements for five common air‑quality gases and particles – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or smaller (PM10) and sulphur dioxide (SO₂). These values come from 40 individual data rows collected at seven monitoring stations across the city. The most recent reading for each pollutant was recorded on 2026‑02‑10 at 19:00 UTC, so the latest information is less than a week old.

Across the pollutants the amount of data varies. NO₂, SO₂ and CO each have ten rows, while PM10 also has nine rows and O₃ only two. The observed concentrations span wide ranges: NO₂ values run from about 24 µg/m³ up to almost 64 µg/m³ with a median near 40 µg/m³; SO₂ is between roughly 5 µg/m³ and 12 µg/m³, median 5.8 µg/m³; CO shows an extreme minimum of –1000 µg/m³ (likely an outlier) and peaks at about 785 µg/m³, with a typical value around 105 µg/m³; PM10 ranges from 11.5 to 58.5 µg/m³, median 17.1 µg/m³; O₃ is measured between 44 and 202 µg/m³, median 123 µg/m³. The 10th‑percentile values are generally close to the minima for each pollutant, while the 90th‑percentile values sit well below the maximums, indicating that extreme readings are relatively rare.

Because O₃ is represented by only two recent rows, its coverage is much more limited than the other pollutants. The presence of a negative CO value suggests occasional sensor errors in the dataset. Overall, the data give a fairly fresh snapshot for most gases, but the uneven number of observations and occasional outliers mean that city‑wide conditions can still differ noticeably between locations and times.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The dataset for Ploiești includes 27 valid measurements and is refreshed regularly, having been updated within the past three days (last update: 2026‑02‑10T19:00:00+00:00). This snapshot reflects conditions at the time of collection; air quality can differ across neighborhoods and change throughout the day, so values shown may not represent every location or moment in the city.

OpenAQ station rows