The IH Blog
EPA Proposes New Threshold for Formaldehyde Risk
If you’ve been following regulatory activity around chemical exposure, you know that formaldehyde has remained a complex and evolving topic. In December, the U.S. Environmental Protection Agency (EPA) released updated draft risk evaluations that could again shift how...
MSHA Silica Rule Update: Where Things Stand as 2025 Comes to a Close
If you’ve been following the Mine Safety and Health Administration’s (MSHA) Respirable Crystalline Silica (RCS) rule, you already know this regulation has been anything but straightforward. We first shared details on the new MSHA silica rule in our July 2024...
Extended Deadlines for EPA’s Methylene Chloride (MeCl₂) ECEL
Key Considerations for Industrial Hygienists Earlier this year, we outlined the significant changes introduced by the Environmental Protection Agency (EPA) under the Toxic Substances Control Act (TSCA) for methylene chloride (MeCl₂). The reduction of the 8-hour...
Simplifying Industrial Hygiene Sampling
Digital Calibration and Smarter Equipment Rentals High-quality data begins with properly conducted Industrial Hygiene (IH) sampling. Whether you’re evaluating airborne contaminants or monitoring heat stress, reliable data starts with properly calibrated equipment and...
How to Prevent PPI Overloading: Lessons from the Field
When conducting respirable particulate sampling, environmental conditions and procedural factors can sometimes affect the accuracy and reliability of collected samples. One challenge that can arise in the field is PPI (personal particle impactor) overloading....
New AIHA Heat Stress Mobile App 2.0 Expands Protection for Indoor and Outdoor Workers
Last month, we discussed the challenges of high temperatures in schools and how SGS SmartSense technology is helping schools meet new heat regulations. But classrooms aren’t the only places where heat poses a hazard. Across industries, from construction sites to...
How New York’s New Heat Regulations Signal a Shift and How SGS SmartSense Can Help
The Impact of High Temperatures on Learning and Wellbeing This fall, schools across New York State will face a new challenge: compliance with recently passed indoor temperature regulations. Starting in September 2025, all NY school districts must ensure classroom...
Why Quality Matters: Safeguarding Data Integrity in Industrial Hygiene Sampling
At SGS, quality isn't just a checkpoint, it’s our foundation. When it comes to industrial hygiene (IH) sampling, even the smallest inconsistencies can lead to compromised data, incorrect exposure assessments, or regulatory challenges. That’s why we invest in rigorous...
MSHA Silica Rule: Compliance Date for Coal Mines Paused
If you’ve been tracking the Mine Safety and Health Administration’s (MSHA) new Respirable Crystalline Silica (RCS) standard, you may have noticed a recent shift in compliance timelines, at least for coal mines. Originally, coal mine operators were required to comply...
The Role of CO₂ in Modern IAQ Monitoring
Indoor air quality (IAQ) continues to be a critical focus for building managers, employers, and health and safety professionals, especially as we learn more about how air circulation impacts human health and disease transmission. On February 12, 2025, ASHRAE released...