Particulate Matter is a site-specific installation investigating Shanghai’s atmosphere. Data reflecting the fine particulate matter in the air is ordered and coloured according to concentration, season, and wind conditions. On still days, the particulate matter renders the air visible and it hangs there—everywhere—as toxic matter to be wrestled, resisted, filtered. On windy days, the air is invisible again, but spaces are torn into the atmosphere by fast moving particulate matter. The structure of the atmosphere is interrupted, its composition compromised and patterns of violent intrusion dominate the skyline.