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The world is on a mission to reduce greenhouse gas emissions for a more sustainable future. However, the success of these efforts relies on the ability to credibly measure such emissions. As the famous mathematician Lord Kelvin said, “If you cannot measure it, you cannot improve it.” Without reliable data, we cannot assess the true effectiveness of environmental initiatives, regulations, and reduction strategies. This is where Explicit steps in. We are data specialists at heart. Our approach is anchored in solid science, validated methods, and proven drone-based technologies. Here are some of the best practices we have developed over a decade of experience in emissions monitoring: Transparent methodology At Explicit, we rely entirely on measured data, not models or black-box calculations. We measure every parameter essential to calculating the mass flux rate. Gas and wind speeds are calculated directly from drone flights, and emissions are summed across each flux wall. Our method ensures high accuracy and credibility for regulatory compliance and environmental reporting. Advanced multi-sensor technology Our payload is built with multiple sensors for methane (CH₄), carbon dioxide (CO₂), wind, temperature, pressure, and humidity. This allows us to measure gas quantities, characterise sources, and assess flare and engine efficiency in

Selecting the right vendor for an OGMP 2.0 (Level 5) site survey isn’t just about ticking a box; it’s about ensuring you get accurate and actionable emissions data. At Explicit, we’ve learned that the difference between a smooth survey and a frustrating one often comes down to the questions asked before work begins. Here are five key questions to help you choose your site survey partner: 1. What logistics are involved in a site survey? Before committing to a vendor, it’s worth understanding what’s required on the day. Some site surveys can be a logistical nightmare – large kits, multiple cases, heavy equipment, and long setup times. We’ve heard stories from clients where the logistics get in the way of operations. That’s why we’ve designed our DFM kits to be as streamlined as possible. Everything needed is contained in a single pelicase, including a backup set and tools. Our plug-and-play solution means minimal setup and more time spent gathering valuable emissions data. 2. How is the data made visible, and how is its validity ensured? A successful survey depends on more than just collecting data; it’s about knowing the data is correct before leaving the site. If measurements taken by

Working on AWAIRE as part of my Master’s thesis made this project especially meaningful to me. Led by Explicit, the project focused on developing and field-testing the DFM method for measuring nitrous oxide (N₂O) emissions from wastewater treatment plants. Over a period of two years, we took the DFM-N₂O method from a conceptual idea to an ISO-accredited solution – through controlled release campaigns, technical upgrades, and extensive fieldwork at BIOFOS Avedøre in Denmark. A smarter way to measure In comparative trials, the DFM-N₂O method consistently matched results from traditional approaches with the additional advantage of reducing uncertainty in parameters which are traditionally hard to measure, such as aeration airflow. Applying the DFM-N₂O method on various measurement campaigns around the world, it became clear that the advantage of this remote sensor technology is especially valuable for wastewater treatment sites designed with tickling filters or surface aerators. Why it matters N₂O is a potent greenhouse gas, and interest in monitoring and mitigating it is growing globally. This reinforces the importance of developing accurate measurement tools in such a pioneering field. What’s missing often is reliable, actionable data. Contributing to closing that gap and seeing the method applied across different sites globally has