Before 1987,the 700000 pigs and 12 million poultry produced a total of 840000 tonnes of wastes. This was equivalent to the pollution load of the raw sewage from more than 1.6million people.

• 在一九八七年以前，70万头猪和1200万只家禽共产生84万公吨废物，相当于160万名市民所产生的未经处理污水的污染量。