According to the Environmental Protection Agency, how much time do Americans typ

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试卷: LEED v4 GA模拟题B卷[查看]
According to the Environmental Protection Agency, how much time do Americans typically spend indoors?
A: 75%
B: 50%
C: 90%
D: 35%

参考答案: C

本题解释:
正确答案：C
系统解析: Knowledge Domain: Project Surroundings and Public Outreach

Americans, on average, spend approximately 90 percent of their time indoors, where the concentrations of some pollutants are often 2 to 5 times higher than typical outdoor concentrations. Moreover, people who are often most susceptible to the adverse effects of pollution (e.g., the very young, older adults, people with cardiovascular or respiratory disease) tend to spend even more time indoors. Health effects that have been associated with indoor air pollutants include irritation of the eyes, nose, and throat; headaches, dizziness, and fatigue; respiratory diseases; heart disease; and cancer.

Values of sustainable design > healthier occupants [ EPA: http://cfpub.epa.gov/eroe/index.cfm?fuseaction=list.listBySubTopic&ch=46&s=343 ]