在夜晚，这架飞机不但检测臭氧、氮氧化物和其他气体的浓度，还测量了飞机下的光照强度，而这项测量差不多是后追加上的项目。

During the nights, not only were the concentrations of ozone, nitrogen oxides and other gases measured by this plane, but also, almost as an afterthought, the intensity of the light from below.

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目的通过对建设项目职业病危害因素测定评价，控制和降低职业病危害因素浓度(强度)，保护劳动者健康。

Objective to control and reduce intensity of occupational risk factors and protect workers health through determining and assessing occupational risk factors for the construction project.

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可选浓度：24小时在该地区，包括高级项目。

Optional concentration: 24 HRS in the area, including Senior Project.

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