around a 1-year interval, rainwater runoff through the decks and rainwater infiltrating by 0.7 m of sand beneath the decks was gathered and analyzed for arsenic species by HPLC−ICP-MS.
In fairness, following my https://rfe.blob.core.windows.net/rfeaws/treatedpinedeckinginsydney/Treated-Pine-Decking-Sydney.html