The Scientific Insights Blog - RJ Lee Group

Know Your Baseline. Stay Ahead.

Written by Peter Zemek | Nov 10, 2025 5:15:00 PM

In today’s regulatory landscape, chemical and polymer manufacturers face heightened scrutiny under the HON Rule — not just for emissions, but for how well they understand and control them.

At RJ Lee Group, we address the critical question: “Where do you really stand?”

Using our mobile laboratory outfitted with cutting-edge instrumentation — including Proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS) and Aerosol Ionization Mass Spectrometry (AIMS) — we bring high-resolution, real-time field data to your fence line, emission points, and process vents. Our mobile platform delivers sensitivity to parts-per-trillion (ppt) levels, ensuring you’re not just sampling—you’re seeing the full picture.

Why this matters:

  • The HON Rule now targets key hazardous air pollutants (HAPs) like Ethylene Oxide (EtO), Chloroprene, 1,3‑Butadiene, Vinyl Chloride, and Ethylene Dichloride — with action levels increasingly defined for fenceline monitoring.

  • This means a facility can no longer rely solely on periodic discrete samples and delayed lab returns — you need responsive, real-time monitoring that reveals episodic excursions, fugitive leaks, or process upsets before they become compliance events.

  • With our mobile platform, we bring the lab to the site. That means less sample loss, faster decision-making, and data your team and regulators can trust.

Our typical target compounds include (but are not limited to):

  • Ethylene Oxide (EtO)
  • Chloroprene
  • 1,3-Butadiene
  • Vinyl Chloride
  • Ethylene Dichloride
  • Benzene
  • Other VOCs and organic HAPs relevant under the HON Rule and your process operations

Key benefits you’ll get from our service:
✔ Real-time monitoring capability at ppt/low-ppb levels
✔ Mobile deployment—truck-mounted lab brings the instrument to your site
✔ Rapid response, high temporal resolution, high spatial resolution
✔ Data you can use immediately for process control, leak detection, and compliance readiness
✔ Support from RJ Lee Group’s science-driven team with deep experience in environmental forensics, regulatory compliance, and advanced instrumentation

Let’s talk strategy.

If you’re subject to the HON Rule—or want to proactively ensure you’re not missing critical emissions events—connect with our team. We’ll discuss how a mobile field deployment of PTR‐TOF‐MS/AIMS can become part of your compliance portfolio, your emissions data strategy, and your community-relations narrative.

Contact Peter Zemek:
📞 1-919-522-2032
📧pzemek@rjlgroup.com