Stack Emissions & Air Quality Monitoring Services

PB Environmental utilizes international guidelines and practices to ensure that their product and services are of the required reliability and quality. To ensure the quality of our data, our equipment is calibrated and verified on a frequent basis. The selection criteria of our equipment also meet international standards.

Capabilities and Services Offered

  • Compliance monitoring according to Atmospheric Emissions Licenses (AEL) and NEM: AQA act 39 of 2004
  • Stack emissions monitoring
  • Continuous emissions monitoring systems (CEMS) correlations/calibration, installations and maintenance
  • Ambient air quality monitoring
  • Dust fallout
  • Abatement equipment efficiency testing
  • Combustion gas testing
  • Process parameters such as temperature, flow rate and gas composition
  • Iso-kinetic sampling
  • Project Management

Stack Emissions Testing

• Main reasons:
– Measure of environmental performance
– Measure of compliance with legislation
– Evaluation of plant performance
– Provide data for design purposes
• Conduct measurement according to legislative requirements
• Comply with applicable safety regulations and work safely
• Engage with authorities where required

Dust Fallout Monitoring

• Compliance with dust control regulations
• Utilize ASTM D1739 method
• Data can be utilized to determine effectiveness of dust control plans
• Development of emission reduction strategies

Ambient Air Monitoring

• Compliance with ambient air quality standards
• Conduct fence line monitoring:
– PM – TSP, PM10, PM2.5 and PM1
– Gaseous pollutant measurement such as SO2, NOx, etc.
– Measurement of organic compounds such as PAH, etc.
– Meteorological parameter measurement
– Periodic and continuous measurement
– Active and passive sampling
– Compliance reporting
• Installation, maintenance and operation of Ambient Air Quality Stations
Typical test methods performed:
US EPA Method 1 – Traverse points US EPA Method 23 – Dioxin and Furans
US EPA Method 2 – Velocity US EPA Method 25a – TVOC
US EPA Method 3 – Molecular weight US EPA Method 26, 26a -Halides & Halogens
US EPA Method 3a – CO2, O2 US EPA Method 29 – Metals
US EPA Method 4 – Moisture CTM 027 – Ammonia Emissions
US EPA Method 5, 17- Particulate Matter NIOSH
US EPA Method 6, 6c – SO2 US EPA Method 0061 – Hexavalent Chromium
US EPA Method 7a, 7e, CTM 034 – NOx ASTM D1739
US EPA Method 8 – Sulphuric acid mist
US EPA Method 18 – VOC

Industries Serviced

  • Petrochemical
  • Steel manufacturing
  • Cement plants
  • Pulp and paper
  • Mills
  • Power generation
  • etc

We aim to be on the forefront of technology development and adoption in stack emissions and air quality monitoring.


Our equipment selection criteria ensure that we comply with legislative and international practices.
Some of the equipment used:

Clean air express

Our quality control comprises of using certified gases for verifications and calibrated reference material to conduct other equipment verifications.

Some of the equipment used for dust fallout monitoring:


Since commencing operations in August 2016, PB Environmental has successfully completed environmental monitoring projects across different industries. These industries range from glass manufacturing, petrochemicals, steel manufacturing, oil recycling, galvanizing, mining, chemical manufacturing and thermal treatment of hazardous waste. The sampling methods usually performed across these industries are listed under “The typical test methods performed” section.