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The Positive of Negative Numbers

The Positive of Negative Numbers

You may have seen a gas concentration reported as less than zero, and that may have made the alarm bells go off. There can of course not be less than no molecules present in the air. But it doesn’t have to mean that the monitoring equipment is bad, it can just as well be valuable data. Let’s take a closer look on how that works!
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Air Quality Monitoring

Air Quality Monitoring

Measuring the ambient air quality can be done in several different ways and in different places, but why is it important to monitor, and what should you think about? Here are some guidelines.
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