A London office building’s air quality test has met 3 of the minimum requiremen

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试卷: WELL AP模拟题英文B卷[查看]
A London office building’s air quality test has met 3 of the minimum requirements for particulate matter and inorganic gases: Carbon monoxide, PM2-5, and PM10. What other minimum standard is required for WELL certification? 伦敦办公楼的空气质量测试已达到颗粒物和无机气体的最低要求中的三项：一氧化碳，PM2-5和PM10。 WELL认证还需要满足哪些最低标准？

A: Methane less than 51 ppb 甲烷小于51 ppb
B: Formaldehyde less than 27 ppb 甲醛小于27ppb
C: Radon less than 4 pCi/L 氡小于4 pCi / L
D: Ozone less than 51 ppb 臭氧小于51ppb

参考答案: D

本题解释:
正确答案：D
解析：D:This is the correct answer. Feature 01 Air Quality Standards, Part 2 has 4 required thresholds:
1. Carbon Monoxide less than 9 ppm
2. PM2-5 less than 15 μg/m3
3. PM10 Less than 50 μg/m3
4. Ozone less than 51 ppb
A:Methane is not a measured pollutant in Feature 01 Air Quality Standards.
B:This is a requirement for Feature 01 Air Quality Standards, Part 1.
C:This is a requirement for Feature 01 Air Quality Standards, Part 3.