公园绿地中空气负离子浓度最高，于人民公园雒水岐小瀑布跌水处可达5760个／cm~3，空气质量指数Ci值远远超过1，平均为7.69；
Air negative-ion concentration in waterfall in People 's Park is 5760 / cm3 , which is the highest of the whole town .
雒水