Singapore Air Quality, PSI, UV & Dengue Alerts

Live Singapore environmental data in one Actor — pulled from the official NEA real-time feeds on data.gov.sg. Get PSI and PM2.5 by region (with health bands), the national UV index, and every active dengue cluster (case counts + location) — as clean JSON, CSV or Excel. Schedule it to power alerts, dashboards and monitoring. No key, no login.

Great for facilities & construction, outdoor/events, health analytics, travel and smart-city apps.

What you get

• 🌫️ PSI — 24h PSI per region (west/east/central/south/north/national) + health band, and the pollutant sub-indices (PM2.5, PM10, O₃, NO₂, SO₂, CO)
• 😷 PM2.5 — 1-hour PM2.5 per region
• ☀️ UV index — latest national UV reading + band
• 🦟 Dengue clusters — active clusters with locality, total case size, breakdown (homes / public places / construction sites) and centroid coordinates
• 🧾 Provenance — feed, timestamp, sourceUrl, collectedAt on every row
• ⏱️ Monitor-friendly — schedule it and each run appends a timestamped snapshot

Example input

{ "feeds": ["psi", "pm25", "uv", "dengue"] }

Pick any subset of feeds.

Output

{ "feed": "psi", "region": "west", "timestamp": "2026-07-30T15:00:00+08:00",
  "psi24h": 56, "band": "Moderate", "pm25_24h": 14, "pm10_24h": 30,
  "latitude": 1.35735, "longitude": 103.7, "sourceUrl": "https://api.data.gov.sg/v1/environment/psi",
  "collectedAt": "2026-07-30T07:25:00.000Z" }

{ "feed": "dengue", "locality": "TAMPINES STREET 21", "caseSize": 12,
  "casesInHomes": 10, "casesInPublicPlaces": 2, "casesInConstructionSites": 0,
  "latitude": 1.3521, "longitude": 103.9445, "collectedAt": "2026-07-30T07:25:00.000Z" }

Output schema

Each row carries a feed field; the other fields depend on which feed produced the row.

Field	Type	Description
feed	string	Which feed the row came from: psi, pm25, uv, or dengue.
region	string	Region the reading covers (west/east/central/south/north/national).
timestamp	string (ISO date)	Reading time reported by the source feed.
psi24h	integer	24-hour PSI value (psi feed).
band	string	Health band label for the reading (psi and uv feeds).
pm25_24h	integer	24-hour PM2.5 concentration (psi feed).
pm10_24h	integer	24-hour PM10 concentration (psi feed).
o3_8h_max	integer	8-hour maximum ozone sub-index (psi feed).
no2_1h_max	integer	1-hour maximum nitrogen dioxide sub-index (psi feed).
so2_24h	integer	24-hour sulphur dioxide sub-index (psi feed).
co_8h_max	integer	8-hour maximum carbon monoxide sub-index (psi feed).
pm25_1h	integer	1-hour PM2.5 concentration (pm25 feed).
uvIndex	number	Latest national UV index value (uv feed).
id	string	Cluster identifier (dengue feed).
locality	string	Cluster locality name (dengue feed).
caseSize	integer	Total cases in the cluster (dengue feed).
casesInHomes	integer	Cases at residential premises (dengue feed).
casesInPublicPlaces	integer	Cases at public places (dengue feed).
casesInConstructionSites	integer	Cases at construction sites (dengue feed).
latitude	number	Latitude for the region or dengue cluster centroid.
longitude	number	Longitude for the region or dengue cluster centroid.
sourceUrl	string (URL)	Official data.gov.sg feed the row was pulled from.
collectedAt	string (ISO date)	When this Actor collected the reading.

Input fields

Field	Description
feeds	Any of psi, pm25, uv, dengue (default all).

FAQ

How current is it? The NEA feeds update in near real time; timestamp is the reading time and collectedAt is your pull time.

What are the PSI bands? Good (0–50), Moderate (51–100), Unhealthy (101–200), Very Unhealthy (201–300), Hazardous (300+).

Can I get alerts? Schedule the Actor and compare each snapshot — e.g. notify when PSI enters "Unhealthy" or a new dengue cluster appears.

How does billing work? A tiny per-feed fetch charge plus pay per reading returned.

Can I integrate this with other tools? The Singapore Environment Scraper can be connected with almost any cloud service or web app thanks to integrations on the Apify platform. It works with Make, Zapier, Slack, Airbyte, GitHub, Google Drive and many more, plus the Apify API, JavaScript/Python clients and MCP. Or use webhooks to trigger an action whenever a run finishes.

Related Actors

• Singapore Carpark Availability (Live)
• Singapore Hawker Centres & Closures
• Singapore Childcare & Preschool Directory

Notes

Original clean-room implementation using Singapore's official NEA open data (data.gov.sg), reused under the Singapore Open Data Licence. Not affiliated with or endorsed by NEA or the Singapore Government.