Polluted water from garbage dumps, from gas stations which can be found everywhere, and even pesticides sprayed on farmland and waste water from the pig-raising industry all percolate into and are permanently left behind in the earth.
垃圾場汙水、四處設置的油槽加油站，甚至農地噴灑農藥、養豬事業廢水，都會滲漏、殘留土中。