A new library would like to meet the standards for Feature A05: Enhanced Air Qua

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试卷: WELL AP v2模拟题 A卷[查看]
A new library would like to meet the standards for Feature A05: Enhanced Air Quality. What threshold must be met for organic gases to achieve this feature? 一座新图书馆希望满足条款A05：增强空气质量的标准。挥发性气体必须满足什么阈值才能实现此条款？
A: Formaldehyde less than 50 μg/m3 or lower 甲醛低于 50 μg/m3 或更低
B: Formaldehyde less than 13 μg/m3 or lower 甲醛低于 13 μg/m3 或更低
C: Formaldehyde less than 9 μg/m3 or lower 甲醛低于 9 μg/m3 或更低
D: Formaldehyde less than 25 μg/m3 or lower 甲醛低于 25 μg/m3 或更低

参考答案: C