Students must put them in a locker or sealed pouch at the start of the day.
  • @aeshna_cyanea@lemm.eeEnglish
    14•16 days ago

    I’m pretty sure there can be other bad stuff in water that existed before the industrial revolution

    • @Olap@lemmy.worldEnglish
      0•16 days ago

      Sure, loads of sewage. But it also had smaller settlements, less people, and human waste was recycled more in times gone by too. Far more water was far more drinkable even 150 years ago