Landfill gas (LFG) is typically about 50 percent methane, making it the chief component present in emissions. This gas can be monitored and used to determine how much LFG a site is emitting, both directly as methane and as a surrogate for total emissions.

Methane can be monitored above the surface of the landfill as a gauge of potential emissions or can be directly measured using techniques that test for the rate or flux of emissions. The above-surface monitoring techniques for gauging potential emissions include surface emission monitoring. Surface emission monitoring (SEM) is a technique that involves using a portable methane detector near the landfill’s surface to measure concentrations while traversing the site.

Why monitor for surface emissions?

Gas from landfill sites can escape form a capped surface. To comply with greenhouse gas emissions regulations, landfills have to monitor the surface of the sites to ensure there are no breaches.

What benefits will I get?

Compliance, Regulation control and Permit adherence

How do I do it?

The latest portable hand-held laser based technology, SEM 5000 provides a more accurate, responsive and intrinsically safe method for surface emissions monitoring. SEM5000 is selective, specifically to methane and is able to detect emissions from 0.5ppm to 100% concentration.

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