More than 300 thousand bees help monitor the air quality at Prague airport.
The Prague airport measures the quality of local honey to ascertain the effects of air transport on the environment. The program has been in place since 2011 and has an analog in Dusseldorf. Over the past couple of years, several airports in Germany have implemented beehives as a part of air-quality controls. The idea is that pollutants will show up in the honey, and that clean honey means clean air.
The reason the bees are used is that they don’t interfere with airline operations. Even in the case of contact with an airplane, nothing criminal can happen.
The bees around the Prague airport produce about 100 kg of honey a year.