对此，天坛公园表示将实时监测松柏类树木开花情况，定期喷水、清扫，降低花粉浓度。北京市园林绿化局表示将采取一系列措施防治花粉，动态替换生长状况差的致敏树种。

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...