Is the air quality in Lahan, Siraha good today?

The US AQI in Lahan, Siraha is 134 (unhealthy for sensitive groups) as of 01:45 Nepal time. Children, older adults and people with heart or lung disease should reduce long or heavy outdoor exertion.

What is the PM2.5 level in Lahan, Siraha?

PM2.5 is 71 µg/m³ and PM10 75 µg/m³. The WHO guideline for the 24-hour mean of PM2.5 is 15 µg/m³.

When is air pollution worst in Siraha?

In Nepal, air quality is usually worst from November to April, when dry weather, stagnant winter air, crop-residue and forest fires and brick kilns add to traffic pollution; the monsoon (June–September) washes the air clean.

Live · 22 Oct 2026 · Madhesh Province

Air quality in Lahan, Siraha today

Live air quality index and pollutants at Lahan, the main town of Siraha district, from the Copernicus (CAMS) air-quality forecast, refreshed every 30 minutes.

US AQI now

134

Unhealthy for sensitive groups

PM2.5

µg/m³ (WHO 24-h guideline: 15)

PM10

µg/m³

Rank among 77 districts

10th

1st = most polluted right now

Health advice: Children, older adults and people with heart or lung disease should reduce long or heavy outdoor exertion.

Hourly air quality: last 3 days and the next 4

US AQI; solid line measured-model history, dashed line forecast. Shaded bands: AQI categories.

Daily summary

Day	Highest AQI	Category	Mean PM2.5 (µg/m³)
Mon, 19 Oct 2026	153	Unhealthy	52
Tue, 20 Oct 2026	155	Unhealthy	62
Wed, 21 Oct 2026	155	Unhealthy	50
Thu, 22 Oct 2026	150	Unhealthy for sensitive groups	54
Fri, 23 Oct 2026	155	Unhealthy	60
Sat, 24 Oct 2026	153	Unhealthy	59
Sun, 25 Oct 2026	153	Unhealthy	59

All pollutants now

Fine particles PM2.5	70.5 µg/m³
Coarse particles PM10	75.2 µg/m³
Nitrogen dioxide NO₂	20.2 µg/m³
Ozone O₃	59.0 µg/m³
Sulphur dioxide SO₂	8.7 µg/m³
Carbon monoxide CO	527 µg/m³

Most and least polluted districts right now

Gaur, Rautahat — AQI 180
Biratnagar, Morang — AQI 166
Malangawa, Sarlahi — AQI 160
Rajbiraj, Saptari — AQI 158
Dhanusa — AQI 155

Darchula — AQI 27
Solukhumbu — AQI 29
Sankhuwasabha — AQI 30
Myagdi — AQI 32
Rukum East — AQI 34

Questions about air quality in Lahan, Siraha

Is the air quality in Lahan, Siraha good today?: The US AQI in Lahan, Siraha is 134 (unhealthy for sensitive groups) as of 01:45 Nepal time. Children, older adults and people with heart or lung disease should reduce long or heavy outdoor exertion.
What is the PM2.5 level in Lahan, Siraha?: PM2.5 is 71 µg/m³ and PM10 75 µg/m³. The WHO guideline for the 24-hour mean of PM2.5 is 15 µg/m³.
When is air pollution worst in Siraha?: In Nepal, air quality is usually worst from November to April, when dry weather, stagnant winter air, crop-residue and forest fires and brick kilns add to traffic pollution; the monsoon (June–September) washes the air clean.

Weather in Lahan, Siraha · Siraha District: land cover and map

Source: Copernicus Atmosphere Monitoring Service (CAMS) via Open-Meteo. Modelled values at the town, not a ground monitor.