This research fails to define how airborne microplastics relocates from it "point of origin" to the sampling location and more importantly the distance it has traveled. As an example it could have arrived externally into the test apartments on pets (dogs/cats) coats. The "point of original" could be the local garbage dump, or thousands of miles away.
It was stated in the report that the University researchers sampled their own apartments and drove around local streets in Toulouse which does have two low emission zones (ZPA) AND (ZFE)
The big question is how applicable these test results are to other locations in the world!
