Air Quality Analysis Information

Cleaner air for China

As China experiences dangerously high levels of particulate matter and other toxins in the air, negative health effects on residents are a top concern.  Ozone, carbon dioxide, nitrogen oxides, and particulate dust particles are harmful substances when inhaled.  Particulate matter that is very small, smaller than 2.5 microns in diameter, is referred to as PM2.5 and it can enter deep into the lungs causing cancer and other lung disease.  Measuring the pollutants in the air is a critical step toward cleaner air.  The most reliable and accurate technology for measuring PM 2.5 are tapered element oscillating microbalances (TEOM) and beta attenuation technologies.

• How TEOM technology measures particulates
• Particulate Analyzers

Downloadable Infographic—Adhering to the US EPA MACT rule

The U.S. EPA requires compliance as set forth under the Maximum Achievable Control Technology(MACT)/National Emission Standards for Hazardous Air Pollutants Compliance Monitoring (NESHAP) rule for Portland cement manufacturing. If you're a facility that must adhere to this U.S. EPA clean air standard, download our MACT compliance infographic.

Fast5 Tips and Tricks for Gas Analyzer and CEMS

If you have an onsite challenge, chances are you will find the solution in one of our Fast5 issues. Sign up here to read previous issues or to receive future issues. Topics include preparing for ozone season, extending calibrator certification, and optimizing the measurement of NO, NO2 and NOx.

Talk Tech

Find solutions and tips to ambient particulate challenges in Talk Tech Q&A. Topics include cold weather monitoring and instrument maintenance recommendations.

Complying With Mercury Emissions Regulations

In order to comply with Under the Interim EPA Traceability Protocol, there are four approved methods to quality check a mercury generator: field reference generator, permeation source, sorbent tube and mercury gas cylinder. While each method provides the same level of compliance, the permeation tube method is the best way to extend the certification. The permeation tube generates a known and reliable concentration of mercury at a constant temperature and flow. This allows for automated audits confirming the reliability of the calibrator output.