News, regulatory updates & sampling instructions
Practical guidance from the bench, how to collect a sample correctly, what changing regulations mean for your projects, and what's new at IRIS.
From the lab
News, regulatory updates, and sampling guidance from IRIS. New articles are published here regularly.
Lead in School Drinking Water
January 14, 2026For parents, teachers, and administrators, the safety of the school environment is paramount, and that includes the water students drink every day.
Read → MoldThe Hidden Risks of Mold in HVAC Systems
January 14, 2026Commercial properties face renewed focus on health and safety. Mold inside HVAC systems is one of the most overlooked risks for property managers.
Read → AsbestosAsbestos in Older Homes
January 14, 2026Renovating an older home brings the excitement of uncovering hidden potential, along with the risk of disturbing asbestos-containing materials.
Read → LeadHow To Test For Lead Paint in 5 Ways
October 14, 2025Lead paint is a hidden hazard that can linger in older homes long after the last renovation. Five reliable ways to test for it.
Read → MoldWhat Happens During an HVAC Mold Assessment
October 13, 2025Mold sampling is more than searching for stains or musty odors. Here is what actually happens during an HVAC mold assessment.
Read → LeadNYC Lead Testing Requirements: A Quick Guide
October 12, 2025Lead-based paint has been banned for decades, but in New York City the risks remain real. A quick guide to local testing requirements.
Read → LeadHow Much Does Lead Testing Cost?
October 11, 2025Homes and buildings built before 1978 still carry a hidden risk: lead paint. What lead testing typically costs and what drives the price.
Read → LeadHow Long Does a Lead Assessment Take?
October 10, 2025Peeling paint on a windowsill may look routine, but it can signal a lead hazard. How long a lead assessment actually takes.
Read → Indoor AirOver 150 Million Americans Exposed to Dangerous Air Pollution
September 22, 2025EPA standards point to rising health risks. Laboratories like IRIS play a key role in monitoring indoor and outdoor air quality.
Read → MoldHow Long Does a Mold Test Take?
September 13, 2025Mold can affect both your property and your health. Many owners and managers ask: how long does a mold test actually take?
Read → InstructionHow to Collect a Water Sample for Metals Testing
Sampling guideFirst-draw vs. flushed samples, the right container, hold times, and the mistakes that invalidate a result.
Read →More articles are published regularly. Have a topic you'd like us to cover? Let us know →