![Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki](https://www.helsinki.fi/assets/drupal/s3fs-public/styles/16_10_m/public/migrated-news/body-images/104350-nodrone.jpg.webp?itok=KyLmaMIM)
Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki
![No Drone Zone' Signs Declared to Violate Language Act - The Text is Only in English | Finland Today | News in English | finlandtoday.fi No Drone Zone' Signs Declared to Violate Language Act - The Text is Only in English | Finland Today | News in English | finlandtoday.fi](https://finlandtoday.fi/wp-content/uploads/2018/07/ft-helsinki-prepares-for-trump-6.jpg)
No Drone Zone' Signs Declared to Violate Language Act - The Text is Only in English | Finland Today | News in English | finlandtoday.fi
Helsingin poliisi on Twitter: "Police has given a fine to a private person flying a #drone and violating no-fly zone in #Helsinki Kaivopuisto area. Please remember aviation restrictions in Uusimaa region during
![Drone 'No-Fly Zones' encompassing and surrounding the study site as... | Download Scientific Diagram Drone 'No-Fly Zones' encompassing and surrounding the study site as... | Download Scientific Diagram](https://www.researchgate.net/publication/308968755/figure/fig1/AS:415599760035840@1476098112107/Drone-No-Fly-Zones-encompassing-and-surrounding-the-study-site-as-identified-by.png)