Seosan air quality now

South Korea · The summary is refreshed every 15 minutes.

Now

No current value: fewer than four sensors at different places are reporting now.

Open map

Open methodology and data in JSON: Methodology and data sources · JSON

There are not enough fresh measurements for Seosan right now. From 18:00 to 04:00 local time the city mean PM2.5 fell from 22.0 to 18.0 µg/m³.

The weather data do not point to a clear reason for this level.

Weather now: partly cloudy, 6°C, wind 3 m/s, humidity 97%. By 14:00 the wind is expected to pick up to 5 m/s, which may clear the air. By 18:00 the temperature will be about 12°C.

Written automatically at 06:13 local time (21:13 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

3 m/s

Wind, SSE

0 mm

Precipitation today

Pollution accumulation index now

40/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now4039
07.0015.0022.0006.00

Pollution accumulation forecast

Today — November 12

15°/6°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 40/100Morning
  3. 8/100Day
  4. 21/100Evening

Friday — November 13

18°/8°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 39/100Morning
  3. 9/100Day
  4. 22/100Evening

Saturday — November 14

16°/12°

Index by time of day

50/100Moderate

  1. 50/100Night
  2. 34/100Morning
  3. 9/100Day
  4. 23/100Evening

Sunday — November 15

16°/8°

Index by time of day

48/100Moderate

  1. 48/100Night
  2. 37/100Morning
  3. 10/100Day
  4. 24/100Evening

Monday — November 16

18°/7°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 36/100Morning
  3. 5/100Day
  4. 13/100Evening

Tuesday — November 17

14°/10°

Index by time of day

37/100Moderate

  1. 37/100Night
  2. 32/100Morning
  3. 9/100Day
  4. 21/100Evening

Forecast of conditions that trap pollution near the surface

Weather

6°

Partly cloudy. Feels like 3°C

  1. MorningPartly cloudy9°C94%
  2. DayPartly cloudy15°C78%
  3. EveningPartly cloudy11°C86%

Wind

3m/sWind from the SSE

3m/sWind gusts

Wind force: 2

Gusts up to 9 m/s are expected.

10-day weather forecast for Seosan

South Korea

  1. TodayNov 12Partly cloudy15°C6°C
  2. FriNov 13Partly cloudy18°C8°C
  3. SatNov 14Rain16°C12°C
  4. SunNov 15Rain16°C8°C
  5. MonNov 16Cloudy18°C7°C
  6. TueNov 17Rain14°C10°C
  7. WedNov 18Rain10°C5°C
  8. ThuNov 19Rain5°C3°C
  9. FriNov 20Rain8°C3°C
  10. SatNov 21Rain13°C4°C

South Korea: sensors in total

529

  1. SeoulSouth Korea

    34

  2. BusanSouth Korea

    30

  3. IncheonSouth Korea

    27

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: Seosan

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

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

South Korea · City ranking · All pilot cities

Questions

What is the air quality in Seosan right now?

Fresh data for Seosan are insufficient (last update: 08:45 local time, 23:45 UTC). Open the map for the latest readings of individual sensors.

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.

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