QI-led emissions stack testing for industrial facilities across the Midwest. EPA Method 5 and beyond. Local crew, fast turnaround, no six-week wait.
Isokinetic sampling for total filterable PM. The foundation of compliance testing for permitted sources.
Continuous instrumental monitoring for NOx emissions. Real-time data capture with spike detection.
Total gaseous organic concentration by flame ionization. The standard for VOC and smog-potential measurement.
Fine particulate fractionation for facilities with size-specific permit limits.
Back-half particulate capture for total PM determination. Increasingly required under tightening regulations.
Multi-metal train sampling for HAP metals determination. Critical for facilities with metals-bearing feedstocks.
Not a rotating crew from out of state. The QI who owns the operation supervises your test personally, ensuring ASTM D7036-04 compliance from setup to final report.
National firms book 4-6 weeks out. We're local. When your permit deadline is approaching, that matters.
Based in Southern Illinois, serving the four-state corridor. Lower overhead means competitive pricing without cutting corners on method execution.
Statistical reliability isn't optional. Every test event runs a minimum of three 60-minute traverses across the full stack cross-section.
Preliminary results same-day. Final reports in two weeks, not two months. Your compliance team shouldn't be waiting on paperwork.
Sealed, labeled, and documented from port to lab. Every sample traceable, every handoff recorded. Built for regulatory scrutiny.
Power plants, cement kilns, grain elevators, ethanol facilities, steel foundries, chemical manufacturers. If you have a stack and a permit, we'll be there.
Air Quality Services, LLC exists because industrial facilities in the Midwest deserve a testing partner who shows up fast, executes the method right, and delivers data you can stake your permit on.