Dust monitoring in the UK: MCERTS, IAQM, and the Clarity Dust Module

About this webinar

In 2025, MCERTS Bulletin PC4 limited each indicative monitor certificate to the concentrations it was tested at, and the IAQM said MCERTS certification alone is not enough to show a low-cost sensor is fit for construction dust monitoring. Most certificates stop near 150 µg/m³, below the IAQM site action level of 190 µg/m³.

In this webinar, Lee Swanson and Paolo Micalizzi explain what changed, how we field tested the Clarity Dust Module for more than 100 days against heated BAM reference monitors in Calexico, California, and how its MCERTS certificate came to cover hourly PM10 from 0 to 374 µg/m³. They finish with five questions to ask any supplier and what the changes mean for planning conditions, specifications, and tenders.