再给你提供一个关于选址的专业回答: . p9 x, K2 E2 w! l4 Z There are a few reasons why the landfill was build on that site - at the time it was an industrial area far away from population and traffic, and provincial laws were not as stringent as they are today (we could never build there now!). The best reason for putting a landfill there was that it had been a gravel mine and there was already a big hole there.