Our longer work — explainers, deep dives, and field guides built on documents, data, and expert analysis.
Candy bottles, finger lights, fridge magnets, loungewear, fire spray, bike helmets, and a gas range. Here’s what each one actually does and what to do about it.
CSB’s update on the April hydrogen sulfide release in Institute, West Virginia: no written procedures, four respirators with the wrong cartridges, no gas monitors, and two of the dead were rescuers. This is a decommissioning failure, and decommissioning is where hazard assessment goes to die.
EPA has signaled it will propose scaling back the 2024 rule covering ethylene oxide, chloroprene, and fenceline air monitoring at about 220 chemical plants. Here’s what the rule requires, what the monitors measure, and why the data matters more than the limit.
New York City released its internal post-9/11 air quality records. They show officials documenting asbestos in the dust while telling residents the air was safe. For anyone who does exposure work, this is the field’s central cautionary tale, finally in primary sources.
A new study using single urine samples didn’t find the pesticide-neurodevelopment link that years of longitudinal research found. That’s not a contradiction. It’s a lesson in sampling design, and it’s the same one that decides whether your air monitoring means anything.
Wisconsin researchers used 115 bald eagle nestlings as PFAS detectors and found different chemical “fingerprints” by region. This is source apportionment. It’s the most useful idea in PFAS work that nobody explains, so here it is.
Three years after the STURDY Act, dressers are still failing it. Here’s this week’s list, what each hazard actually is, and the ten-minute fixes.
NIOSH bought counterfeit P100 filters and cartridges and tested them. Nearly all of them failed. Here’s the step that’s missing from most respiratory protection programs, and how to add it in ten minutes.
Proposed 6 NYCRR Parts 360 and 363 would be the first rule in the country to make landfills treat leachate for PFAS before it goes to a sewage plant. The comment window closed September 9. The fight over what “treat” means is just starting.