We investigate the effects of PFAS on the solitary bee Osmia bicornis, by placing nests with pupae in an industry area with known very high PFAS-concentrations in the water, and in the agricultural areas with low concentrations as control. The map shows the location of the nest boxes.
![](http://biowetland.se/wp-content/uploads/2021/08/Översiktskarta_utplacerade_Osmia_2021.06.15-1024x724.jpg)