Associate Professor Gaston J. Wu of National Taiwan University's department of chemistry points out that in addition to breathing acidified air, the human body can also take in acidic gas through the skin and hair, just as we carry a whiff of scent along with us when we emerge from a heavily perfumed environment.
師大化學系副教授吳家誠指出，除了吸進酸的空氣，人的皮膚、頭髮也都會吸附這種酸性氣體，譬如我們由很香的地方出來，身上會帶有香氣一樣。