Claim: New air sensors across Wales have a siren that goes off when air pollution is very high and tells people to go inside.
Fact-check: Air pollution sensors in Newport do not have sirens telling people to 'go inside' - Full Fact
Verdict: air sensors installed in several locations across newport change colour according to levels of air pollution, but they do not make any noise or play a warning message.
Organisation: Full Fact
Author: Evie Townend
Date published: 2024-12-05T00:00:00