---
type: "Public Data API"
title: "Air quality model SILAM"
description: "SILAM (System for Integrated modeLling of Atmospheric coMposition) is a dispersion model developed to assess atmospheric composition and air quality and to support emergency decisions."
tags: ["environment"]
timestamp: "2026-10-30T04:12:26.651Z"
slug: "air-quality-model-silam"
verification_state: "VERIFIED"
free_access_class: "FREE_NO_AUTH"
auth_type: "NONE"
country_code: "FI"
geographic_scope: "NATIONAL"
confidence: 0.16
canonical: "https://c0mm0.com/entry/air-quality-model-silam/"
---

# Air quality model SILAM

SILAM (System for Integrated modeLling of Atmospheric coMposition) is a dispersion model developed to assess atmospheric composition and air quality and to support emergency decisions. The data includes an air quality forecast for the main harmful substances in the environment: CO, NO, NO2, O3, SO2, PM10 and PM2.5. The data of the forecast model covers the European region. A new forecast run will be available once a day.

# Access

| Property | Value |
| --- | --- |
| Access | Free no auth |
| Authentication | None |
| Homepage | — |
| Documentation | — |
| Repository | https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById |

# Verification

| Property | Value |
| --- | --- |
| State | VERIFIED |
| Last verified | 2026-10-30T04:12:26.386Z |
| Latency p50 | 1607 ms |
| Latency p95 | — |
| Consecutive successes | 187 |

# Related

* Serves dataset: [Sääennustedata HARMONIE-AROME - mallipinnat](/datasets/saaennustedata-harmonie-arome-mallipinnat) — Dataset published on this service's host
* Serves dataset: [Ilman radioaktiivisuusvalvonta](/datasets/ilman-radioaktiivisuusvalvonta) — Dataset published on this service's host
* Serves dataset: [Säätutkahavainnot](/datasets/saatutkahavainnot) — Dataset published on this service's host
* Serves dataset: [Salamahavainnot](/datasets/salamahavainnot) — Dataset published on this service's host
* Serves dataset: [Ilmastonmuutosskenaariot](/datasets/ilmastonmuutosskenaariot) — Dataset published on this service's host
* Serves dataset: [Sääennustedata HARMONIE-AROME - painepinnat](/datasets/saaennustedata-harmonie-arome-painepinnat) — Dataset published on this service's host
* Serves dataset: [Säähavaintojen hilamuotoiset kuukausiarvot](/datasets/saahavaintojen-hilamuotoiset-kuukausiarvot) — Dataset published on this service's host
* Serves dataset: [Aaltoennustedata WAM](/datasets/aaltoennustedata-wam-1) — Dataset published on this service's host
* Serves dataset: [Taustailmanlaatuhavainnot](/datasets/taustailmanlaatuhavainnot) — Dataset published on this service's host
* Serves dataset: [Säähavaintojen kuukausiarvot](/datasets/saahavaintojen-kuukausiarvot) — Dataset published on this service's host
* Serves dataset: [Ulkoisen säteilyn valvonta](/datasets/ulkoisen-sateilyn-valvonta) — Dataset published on this service's host
* Serves dataset: [Ilmanlaatumalli SILAM](/datasets/ilmanlaatumalli-silam) — Dataset published on this service's host
* Serves dataset: [Aaltohavainnot](/datasets/aaltohavainnot) — Dataset published on this service's host
* Serves dataset: [Kaupunkien ja teollisuuden ilmanlaatuhavainnot](/datasets/kaupunkien-ja-teollisuuden-ilmanlaatuhavainnot) — Dataset published on this service's host
* Serves dataset: [Tiesäähavainnot](/datasets/tiesaahavainnot) — Dataset published on this service's host
* Serves dataset: [Säähavaintojen ilmastolliset vertailuarvot](/datasets/saahavaintojen-ilmastolliset-vertailuarvot) — Dataset published on this service's host
* Serves dataset: [Lämpötila- ja suolaisuusluotaukset (CTD) merialueilla](/datasets/lampotila-ja-suolaisuusluotaukset-ctd-merialueilla) — Dataset published on this service's host
* Serves dataset: [Meriveden korkeushavainnot](/datasets/meriveden-korkeushavainnot) — Dataset published on this service's host
* Serves dataset: [Säähavaintojen vuorokausiarvot](/datasets/saahavaintojen-vuorokausiarvot) — Dataset published on this service's host
* Serves dataset: [Säähavainnot](/datasets/saahavainnot) — Dataset published on this service's host
* Serves dataset: [Luotaushavainnot](/datasets/luotaushavainnot) — Dataset published on this service's host
* Serves dataset: [Mastohavainnot](/datasets/mastohavainnot) — Dataset published on this service's host
* Serves dataset: [Sääennustedata HARMONIE-AROME](/datasets/saaennustedata-harmonie-arome) — Dataset published on this service's host
* Serves dataset: [Jäähavainnot](/datasets/jaahavainnot) — Dataset published on this service's host
* Serves dataset: [Meriveden korkeusennuste](/datasets/meriveden-korkeusennuste) — Dataset published on this service's host
* Serves dataset: [FMI-ENFUSER ilmanlaatumalli](/datasets/fmi-enfuser-ilmanlaatumalli) — Dataset published on this service's host
* Serves dataset: [Merijääennustedata HELMI](/datasets/merijaaennustedata-helmi) — Dataset published on this service's host
* Serves dataset: [Auringon säteilyhavainnot](/datasets/auringon-sateilyhavainnot) — Dataset published on this service's host

# Publisher

[Finnish Meteorological Institute](/institutions/b295307e-f9ce-45e0-b919-28501950b975)

# Citations

[1] [https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById](https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById) — primary source
[2] [https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById](https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById) — description, inferred, confidence 0.4
[3] [https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById](https://opendata.fmi.fi/wfs?datasetid=1001184&request=GetFeature&storedquery_id=GetDataSetById) — name, inferred, confidence 0.4