Need for a new protected area category for ecosystem services REPLY

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Need for a new protected area category for ecosystem services REPLY
	Ouyang, Zhiyun; Daily, Gretchen C.; Zheng, Hua; Liu, Jianguo; Polasky, Stephen; Jiang, Ling; Xiao, Yang; Shi, Xuewei; Rao, Enming; Wang, Xiaoke
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2017-05-30
卷号	114 期号:22 页码:E4319-E4320
关键词	Pm2.5 Indoor Air I/o Modeling Population Exposure
英文摘要	Because people spend most of their time indoors, the characterization of indoor air quality is important for exposure assessment. Unfortunately, indoor air data are scarce, leading to a major data gap in risk assessment. In this study, PM2.5 concentrations in both indoor and outdoor air were simultaneously measured using on-line particulate counters in 13 households in Haidian, Beijing for both heating and non-heating seasons. A bimodal distribution of PM2.5 concentrations suggests rapid transitions between polluted and non-polluted situations. The PM2.5 concentrations in indoor and outdoor air varied synchronously, with the indoor variation lagging. The lag time in the heating season was longer than that in the non-heating season. The particle sizes in indoor air were smaller than those in ambient air in the heating season and vice versa in the non-heating season. PM2.5 concentrations in indoor air were generally lower than those in ambient air except when ambient concentrations dropped sharply to very low levels or there were internal emissions from cooking or other activities. The effectiveness of an air cleaner to reduce indoor PM2.5 concentrations was demonstrated. Non-linear regression models were developed to predict indoor air PM2.5 concentrations based on ambient data with lag time incorporated. The models were applied to estimate the overall population exposure to PM2.5 and the health consequences in Haidian. The health impacts would be significantly overestimated without the indoor exposure being taken into consideration, and this bias would increase as the ambient air quality improved in the future. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39061]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Ouyang, Zhiyun,Daily, Gretchen C.,Zheng, Hua,et al. Need for a new protected area category for ecosystem services REPLY[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(22):E4319-E4320.
APA	Ouyang, Zhiyun.,Daily, Gretchen C..,Zheng, Hua.,Liu, Jianguo.,Polasky, Stephen.,...&Wang, Zhi.(2017).Need for a new protected area category for ecosystem services REPLY.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(22),E4319-E4320.
MLA	Ouyang, Zhiyun,et al."Need for a new protected area category for ecosystem services REPLY".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.22(2017):E4319-E4320.