Stack Emission Monitoring and Testing

Source emission testing, done properly

Stack monitoring measures what actually leaves your chimney, at the point it leaves. It is a consent condition for most industrial units, and the results feed straight into your Form-V return and every inspection.

Parameters we test

• Particulate matter - isokinetic sampling
• Sulphur dioxide (SO₂)
• Oxides of nitrogen (NO_x)
• Carbon monoxide (CO) and carbon dioxide
• Hydrogen chloride, chlorine, ammonia where applicable
• Volatile organic compounds - relevant for solvent-handling units
• Stack gas velocity, temperature and flow rate

Why sampling conditions matter

Ports and platforms

Accurate isokinetic sampling needs properly located ports with adequate straight-length upstream and downstream, and a safe working platform. Where these are missing or badly placed, we say so rather than producing a number that cannot be relied on.

What your stack monitoring report includes

• Stack identification, fuel and process operating status during sampling
• Sampling location, port details and stack dimensions
• Measured concentration, flow and applicable reporting units
• Method references, instrument details and quality-control records
• Clear comparison with the applicable consent or regulatory limit supplied for the source

The rest of the monitoring programme

Stack testing sits alongside ambient air, water, noise and soil work in our NABL-accredited laboratory. Running them together keeps the calendar consistent - and monitoring gaps are the one audit finding that cannot be fixed retrospectively.