Baia Mare air quality now

Romania · The summary is refreshed every 15 minutes.

November 12

The air is moderate now

Measured 22:00–23:58

Baia Mare

9°C

Rain

84AQI

1008

hPa

Atmospheric
pressure

71%

Humidity

Baia Mare, November 10, 2026: daily mean PM2.5 33 µg/m³ (4 sensors), level “Moderate” — as in the Atmy Data Hub. Now (00:00 local time): 27.0 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON

Right now in Baia Mare, PM2.5 averages 27.0 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from Sensor.Community, Government stations, readings from 22:00–23:58 local time (20:00–21:58 UTC), summary prepared at 00:00 local time. Median: 16.2 µg/m³; range across sensors: 4.4–71.0 µg/m³.

In Baia Mare the air is moderate 🟡 AQI 84. Lower than three hours ago. 🌧️ +9 °C · Precipitation 0.1 mm · Wind 1 m/s

In Baia Mare 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 10.5 to 27.0 µg/m³. The highest hour was 18:00 with 47.0 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).

Weather now: rain, 9°C, wind 1 m/s, humidity 71%. Precipitation is expected around 06:00; it may wash particles out.

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

13 mm

Precipitation today

Baia Mare: air quality for the completed day

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · November 10, 2026 · 00:00–24:00 UTC = 02:00–02:00 UTC+2

33 µg/m³ Moderate

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 33 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub.

No. 1 of 8 cities in Romania and No. 138 of 676 worldwide, from the most polluted.

LowModerateElevatedHighVery highExtremely high

Baia Mare: PM2.5 by month

Metric: PM2.5, µg/m³ · Color scale: EPA AQI

Mean
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
This month
11
-
-
-
26
27
14
5
4
4
5
4
-
-

Monthly means of quality-checked sensors, as in the Data Hub trend; the current month is still incomplete, “-” means no data.

Baia Mare: air quality over the year

  • Over the last 228 days with data, the mean daily PM2.5 in Baia Mare was 10.9 µg/m³ — 2.2 times the WHO annual guideline (5 µg/m³). Over the last 30 days: — µg/m³. From Atmy's archive of daily city means.
  • Cleanest day of the last year: May 29, 2026, 1.6 µg/m³.
  • Most polluted day of the last year: March 3, 2026, 66.3 µg/m³.
  • In Atmy's daily archive, the cleanest month of the last year was June 2026: 4.4 µg/m³ on average.
  • The most polluted month of the last year was March 2026: 26.9 µg/m³ on average.
  • From November to March the mean daily PM2.5 was 28.1 µg/m³, from June to August 4.7 µg/m³ (last 365 days).

Pollution accumulation index now

41/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now4115
00.0008.0015.0023.00

Pollution accumulation forecast

Today — November 12

12°/9°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 40/100Morning
  3. 10/100Day
  4. 19/100Evening

Friday — November 13

15°/5°

Index by time of day

32/100Low

  1. 32/100Night
  2. 26/100Morning
  3. 8/100Day
  4. 22/100Evening

Saturday — November 14

7°/0°

Index by time of day

43/100Moderate

  1. 40/100Night
  2. 43/100Morning
  3. 8/100Day
  4. 27/100Evening

Sunday — November 15

7°/-2°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 43/100Morning
  3. 10/100Day
  4. 24/100Evening

Monday — November 16

11°/-1°

Index by time of day

54/100Moderate

  1. 54/100Night
  2. 42/100Morning
  3. 7/100Day
  4. 15/100Evening

Tuesday — November 17

13°/8°

Index by time of day

43/100Moderate

  1. 43/100Night
  2. 38/100Morning
  3. 9/100Day
  4. 25/100Evening

Forecast of conditions that trap pollution near the surface

Weather

9°

Rain. Feels like 6°C

  1. MorningRain10°C92%
  2. DayCloudy11°C92%
  3. EveningRain11°C93%

Wind

1m/sWind from the E

2m/sWind gusts

Wind force: 1

Light wind is expected over the next few hours.

10-day weather forecast for Baia Mare

Romania

  1. TodayNov 12Rain12°C9°C
  2. FriNov 13Rain15°C5°C
  3. SatNov 14Cloudy7°C0°C
  4. SunNov 15Partly cloudy7°C-2°C
  5. MonNov 16Cloudy11°C-1°C
  6. TueNov 17Rain13°C8°C
  7. WedNov 18Rain13°C7°C
  8. ThuNov 19Rain11°C6°C
  9. FriNov 20Rain8°C5°C

Where in Baia Mare is the air worse?

See all sensors

Highest current reading: 71.0 µg/m³ (Mm-6 (Maramures-RNMCA)). Lowest: 4.4 µg/m³ (SC #98156). The list shows every sensor, highest first.

  1. Mm-6 (Maramures-RNMCA) →71 µg/m³
  2. SC #98154 →24 µg/m³
  3. SC #98153 →8 µg/m³
  4. SC #98156 →4 µg/m³

Source: atmy.ai monitoring network

Who provides the data

Sensors in the summary by network: Sensor.Community — 3 sensors, Government stations — 1 sensor.

Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.

Romania: sensors in total

116

  1. BucharestRomania

    36
  2. Cluj-NapocaRomania

    23
  3. IașiRomania

    11

Cities 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.

Air quality calendar: Baia Mare

Daily mean PM2.5 of the city sensors, µg/m³

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

Widget for your site

An Atmy card with the air quality in Baia Mare now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.

Air quality in Baia Mare now — Atmy

Questions

What was the air quality in Baia Mare over the last completed day?

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 02:00–02:00 UTC+2): 33 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 1 of 8 cities in Romania and No. 138 of 676 worldwide, from the most polluted.

What is the air quality in Baia Mare right now?

Right now in Baia Mare, PM2.5 averages 27.0 µg/m³ — “moderate” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from Sensor.Community, Government stations, readings from 22:00–23:58 local time (20:00–21:58 UTC), summary prepared at 00:00 local time. Median: 16.2 µg/m³; range across sensors: 4.4–71.0 µg/m³.

Is it safe to be outdoors in Baia Mare now?

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.

Where in Baia Mare is the air worse?

Highest current reading: 71.0 µg/m³ (Mm-6 (Maramures-RNMCA)). Lowest: 4.4 µg/m³ (SC #98156). The list shows every sensor, highest first.

Where do these data come from?

From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.

How often is this page updated?

The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.

Is the air in Baia Mare polluted?

Over the last 228 days with data, the mean daily PM2.5 in Baia Mare was 10.9 µg/m³ — 2.2 times the WHO annual guideline (5 µg/m³). Over the last 30 days: — µg/m³. From Atmy's archive of daily city means.

When is the air in Baia Mare cleanest?

In Atmy's daily archive, the cleanest month of the last year was June 2026: 4.4 µg/m³ on average.

When is the air in Baia Mare most polluted?

The most polluted month of the last year was March 2026: 26.9 µg/m³ on average.

Is the air in Baia Mare worse in the heating season?

From November to March the mean daily PM2.5 was 28.1 µg/m³, from June to August 4.7 µg/m³ (last 365 days).

Data

Where do these data come from?

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