The city also spent $ 70 million to clean up and then rechannel water into a stagnant downtown river bed that had become a nurturing area for noxious smells and particulate emissions.

• 太原市还花费了7000万美元将经过净化的水改道注入市中心的一个河床。 此前，这潭死水已经成为滋生恶臭的温床和颗粒物排放的集纳地。