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Repost @grist and @applenews:
“Today, the Environmental Protection Agency announced the nation’s first drinking-water standards for six types of per- and polyfluoroalkyl substances, known as PFAS. These long-lasting synthetic chemicals don’t break down naturally in the environment and have been linked to cancer, heart and liver problems, developmental damage, and other health issues.
Under the new rule, drinking-water concentrations of two of the most thoroughly studied and prevalent of these substances — PFOA and PFOS — will be capped at the lowest limit that the EPA believes is technologically possible, about four parts per trillion, reflecting scientists’ understanding that there is no safe exposure level for them. Three other common PFAS will be limited to 10 parts per trillion, either measured on their own, in combination with each other, or with one otherwise-unregulated chemical.
While the compounds being regulated represent a fraction of the entire class of chemicals — more than 15,000 distinct variants fall under the PFAS umbrella — the EPA estimates that its new rules will protect some 100 million people from exposure and prevent tens of thousands of serious illnesses, especially cancers.
“We are one huge step closer to shutting off the tap for forever chemicals once and for all,” agency head Michael Regan said.”
#PFAS #BreakingNews
Oxford-based startup Mistify AI has developed a solar-powered system that uses artificial intelligence to detect and remove PM2.5 and PM10 dust particles before they spread. This technology could dramatically reduce health risks on construction sites while supporting sustainable construction practices. By addressing air quality in dense urban areas, it also highlights how digital innovation contributes to environmental sustainability in construction and sets a precedent for integrating eco-design for buildings into site operations.
In Finland, researchers are developing nanoscale metasurfaces that regulate building surface temperatures by reflecting or trapping heat. This innovation could lower energy use for heating and cooling, directly reducing the whole life carbon of buildings. With the built environment contributing almost 40% of global carbon emissions, such progress underlines the importance of whole life carbon assessment and life cycle cost analysis in sustainable building design and energy-efficient buildings.
Efforts to decarbonise commercial real estate are accelerating, with the Urban Land Institute advancing strategies for large-scale retrofitting and adoption of green building standards. Investors are demanding measurable climate performance, driving the sector towards low carbon design and net zero whole life carbon targets. The focus on embodied carbon in materials and building lifecycle performance signals a shift towards circular economy in construction and greater reliance on lifecycle assessment to inform investment decisions.
Corporate-led sustainability initiatives continue to reshape industrial assets. Mars announced a €1 billion programme across its European facilities to upgrade operations with renewable energy, improved water efficiency, and low carbon construction materials. Though not limited to construction, the strategy involves substantial facility transformation, demonstrating how sustainable building practices embedded in corporate infrastructure investment can influence broader trends in green construction and carbon neutral construction.
In Japan, scrutiny of the national carbon trading scheme has raised concerns about the credibility of construction-related offsets. Projects such as LED retrofits or forest preservation are being counted toward Article 6.2 targets, sparking debate about their real contribution to carbon footprint reduction. These developments reinforce the urgent need for decarbonising the built environment through verified end-of-life reuse in construction, resource efficiency in construction, and genuine low embodied carbon materials, rather than relying on questionable offsets.
At policy level, the EU’s failure to agree new climate standards obstructs progress on building codes and retrofit schemes. This lack of regulatory clarity delays action that would strengthen sustainable material specification and environmental product declarations (EPDs). Without binding targets, ambitions for net zero carbon buildings and sustainable urban development will falter, leaving green building materials and circular construction strategies underutilised across the sector.
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