---
title: "Current air quality"
method: GET
path: "/api/v1/air-quality/current"
tags: ["Environment"]
---

# Current air quality

`GET /api/v1/air-quality/current`

Current air quality: PM2.5, PM10, NO2, O3, European AQI, US AQI.

## Query parameters

- `latitude` number, nullable — Latitude in decimal degrees (-90 to 90).
- `longitude` number, nullable — Longitude in decimal degrees (-180 to 180).
- `city` string, nullable — City name (alternative to lat/lon).
- `country` string, nullable — Country name or code

## Response `200`

Current air quality readings (PM2.5, PM10, NO2, O3, European AQI, US AQI).

- EnvelopeAirQualityCurrentData
  - `data` AirQualityCurrentData, required — Response model for /air-quality/current.
    - `latitude` number, nullable — Latitude in decimal degrees.
    - `longitude` number, nullable — Longitude in decimal degrees.
    - `timezone` string, nullable — Timezone identifier (IANA).
    - `timestamp` string, nullable — ISO timestamp of the observation.
    - `pm10_ugm3` number, nullable — PM10 concentration (ug/m3).
    - `pm25_ugm3` number, nullable — PM2.5 concentration (ug/m3).
    - `no2_ugm3` number, nullable — Nitrogen dioxide (ug/m3).
    - `so2_ugm3` number, nullable — Sulphur dioxide (ug/m3).
    - `ozone_ugm3` number, nullable — Ozone (ug/m3).
    - `dust_ugm3` number, nullable — Dust concentration (ug/m3).
    - `uv_index` number, nullable — UV index.
    - `european_aqi` integer, nullable — European Air Quality Index.
    - `us_aqi` integer, nullable — US Air Quality Index.
    - `source` string, nullable — Upstream source identifier.
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

[API](https://skmtc.net/sugra/apis/sugra-api.md) · [All operations](https://skmtc.net/sugra/apis/sugra-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sugra/sugra-api/versions/4e2740743eb4/schema)