Press & creators

HazePun press kit

HazePun is a free, independent web app that shows Singapore’s live PSI (Pollutant Standards Index) by region, powered by official NEA data, and pairs it with a Merlion mascot that masks up as the haze worsens and a library of deliberately terrible haze puns. It began in 2015 during the regional haze and was rebuilt as a fast, mobile-first site. Created by Wai Hsuen.

Open HazePun →Download hero image

Key facts

Live 24-hour PSI for Central, North, South, East and West Singapore, highlighting the highest regional reading and average PM2.5.
Data from the National Environment Agency via Data.gov.sg, refreshed every 15 minutes.
A Merlion mascot with six animated states, from bare-faced and waving to full gas mask.
A library of haze puns for every air-quality tier, including original 2015 classics.
One-tap sharing to WhatsApp, Telegram, X and Facebook with a tier-matched preview image.
Free, no sign-up, no ads, no tracking cookies.

Story angles

Haze, but make it funny: a local-flavoured way to check the PSI before heading out.
A decade-old Singapore side project, rebuilt for the era of WhatsApp group chats.
The Merlion, but as an air-quality barometer: watch it mask up in real time.

How it works

HazePun requests the real-time PSI feed from Data.gov.sg every 15 minutes, averages the five regional 24-hour readings, and picks a Merlion state and pun to match. If the feed is unreachable, the last good reading stays on screen with a “refresh delayed” label rather than showing made-up numbers. See the PSI guide for the official bands and how the Merlion reacts.

Embed the live PSI

Newsrooms and bloggers can drop the live widget into an article. Copy this snippet:

<iframe src="https://hazepuns.live/?embed=1" title="HazePun: live Singapore PSI" width="100%" height="760" style="border:0;max-width:1100px" loading="lazy"></iframe>