Urban vs. rural pollen chemistry project design February 26, 2020 by WDG | 0 comments ← Previous Image Figure 1: (a) Illustrative images of sample locations in Amsterdam and the Hoge Veluwe. (b) The newly developed ‘pollen sniffer’ collects airborne pollen from the environment. (c) The FTIR can chemically characterise individual pollen grains. Urban vs. rural pollen chemistry project design