As a toxicology expert I support environmental issues. Since a number of years I help concerned inhabitants of villages near Maastricht Aachen Airport (MAA). A number of people have been able to contract Sensornet to do measurements of ultrafine particles during 3 months in 2022. The results have been digested into a report by DGMR, a reputed Dutch consultancy firm. The only thing I did is frame the outcomes in (inter)national context and health risks during a meeting in cafe the Notenbalk in Ulestraten. Regional and national press have reported correctly was has been said. Have a look at the EenVandaag documentary that was at Dutch National Television on July 27th 2023 or read https://www.limburger.nl/cnt/dmf20230607_93620888 .