WITH a new semester starting, lots of students are rushing to buy new stationery (文具). It’s common that fragrant (芳香的) stationery like fragrant erasers, ballpoints, and notebooks dominates schoolbags. However, experts warn the substances (物质) used to create the fragrance may come from industrial essences (香精). They contain harmful chemicals that could lead to chronic (慢性的) poisoning in the long term.