它一直在尝试建立监测站，以生成精确至分钟的室外空气污染分布图。
It has been trying out monitoring stations that are intended to yield minute-to-minute maps of outdoor air pollution.
她的监测仪显示，越是接近地面，空气污染水平越高。这凸显了人们的担忧，担心婴儿和幼童患肺部疾病的风险可能会增加。
Her monitor has shown that air pollution levels are higher closer to ground level, which has helped highlight concerns that babies and young kids may be at higher risk of developing lung problems.
传统的空气污染监测仪通常安装在灯柱上，并被固定在距离地面约九英尺的空中。
Conventional air pollution monitors are normally fixed on lampposts at about nine feet in the air.
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