A new sulfur sniffing drone has started checking the emissions from ships operating in Danish waters. By flying into the ship’s exhaust gas plume, the drone can use its “sniffer technology” to register the sulfur content in the ship’s fuel. These data are immediately available to the Danish Environmental Protection Agency, which can then follow up if a ship is emitting too much sulfur. Provided by the European Maritime Safety Agency, the drone will operate in a specific area north of the Great Belt strait. Several Danish authorities have cooperated to get the drone from EMSA in action above Danish waters. The test project is being carried out in a collaboration between the Ministry of Environment and Food of Denmark, the Danish Environmental Protection Agency and the Danish Maritime Authority. The drone began operations over Denmark from July 1 and will remain in the area through October 31.