Tag: UFP
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GO AQS White Paper v1.1.0.0 – Update
We are pleased to announce an update to our indoor air quality standards. This revision ensures our benchmarks remain scientifically rigorous while acknowledging the changing environmental realities of 2026. Changelog: You will find the latest version of the white paper on the home page at www.goaqs.org. If members have any comments about the changes please feel free…
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Why South Korea’s New Air Quality Standards Miss the Mark on Ultrafine Particles Indoors
South Korea recently made headlines by tightening its indoor air quality standards. Under the revised Enforcement Rule of the Indoor Air Quality Control Act, the maximum allowable level of ultrafine dust in public facilities—including libraries, museums, and private academies—was lowered from 50 micrograms per cubic meter (μg/m3) to 40 μg/m3. While the Ministry of Government Legislation frames…
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Summary of the PM Working Group Discussion on Submicron and Ultrafine Particles
Two sessions within the Particulate Matter (PM) Working Group have highlighted a critical shift in air quality monitoring: the move away from traditional mass-based measurements toward tracking the number and surface area of the smallest particles. While PM2.5 is currently well-regulated, the scientific community is increasingly concerned about submicron and ultrafine particles (UFP), which pose…
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A Synthesis of Expert Views on Submicron and Ultrafine Particles
For decades, the global standard for measuring indoor air quality (IAQ) has focused on PM2.5, particulate matter with an aerodynamic diameter of 2.5 micrometers or less. However, recent findings from the Particulate Matter Working Group suggest that this mass-based metric may be overlooking the most significant health risks. By synthesizing expert survey data and recent…
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GO AQS and VERT Association Announce Strategic Partnership to Tackle Ultrafine Particle Pollution
GO AQS is excited to announce a formal partnership with the VERT Association, a premier international organization dedicated to the promotion of Best Available Technology (BAT) for emission control and the elimination of ultrafine particle emissions from all sources. This partnership unites two organizations committed to scientific excellence and public health. While VERT has spent…
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