CCPortal
DOI10.1021/acs.est.8b02865
Removing Shadows from Consequential LCA through a Time-Dependent Modeling Approach: Policy-Making in the Road Pavement Sector
AzariJafari, Hessam1,2; Yahia, Ammar2; Amor, Ben1
发表日期2019
ISSN0013-936X
EISSN1520-5851
卷号53期号:3页码:1087-1097
英文摘要

Lack of dynamic accounting in consequential life cycle assessment (CLCA) can keep policy-makers from having an accurate analysis of emission flows over time. In this study, we propose a dynamic CLCA framework to assess the environmental consequences of pavements. Dynamic changes in the demand vector and technosphere matrices were computed using relevant time horizons of affected supply technologies and incorporating time-dependent parameters. A Monte Carlo simulation was then conducted to propagate the variability, model uncertainty, and parameter uncertainty sources of LCI to the damage results. The results show that simplifying pavement CLCA framework through neglecting real-time changes results in notable diversions in the damage results. The environmental benefits of substituting asphalt with concrete are underestimated by 7, 17, and 77% for climate change, human health and resources categories, respectively. A divergence of 114% was also observed in ecosystem quality when using the static framework. Moreover, the lack of accounting for a temporal profile for GHG emissions using static characterization factors leads to a divergence of the GWP benefits of substituting asphalt with concrete of 473 t CO2eq (105%). The uncertainty results show 41-71% contribution of the variance in the damage categories is caused by the variability sources and is primarily attributed to monthly temperature accounting and service life.


WOS研究方向Engineering ; Environmental Sciences & Ecology
来源期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/93292
作者单位1.Univ Sherbrooke, Dept Civil & Bldg Engn, Interdisciplinary Res Lab Sustainable Engn & Ecod, Sherbrooke, PQ J1K 2R1, Canada;
2.Univ Sherbrooke, Dept Civil & Bldg Engn, NSERC Res Chair Dev & Use Fluid Concrete Adapted, 2500 Blvd Univ, Sherbrooke, PQ J1K 2R1, Canada
推荐引用方式
GB/T 7714
AzariJafari, Hessam,Yahia, Ammar,Amor, Ben. Removing Shadows from Consequential LCA through a Time-Dependent Modeling Approach: Policy-Making in the Road Pavement Sector[J],2019,53(3):1087-1097.
APA AzariJafari, Hessam,Yahia, Ammar,&Amor, Ben.(2019).Removing Shadows from Consequential LCA through a Time-Dependent Modeling Approach: Policy-Making in the Road Pavement Sector.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(3),1087-1097.
MLA AzariJafari, Hessam,et al."Removing Shadows from Consequential LCA through a Time-Dependent Modeling Approach: Policy-Making in the Road Pavement Sector".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.3(2019):1087-1097.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[AzariJafari, Hessam]的文章
[Yahia, Ammar]的文章
[Amor, Ben]的文章
百度学术
百度学术中相似的文章
[AzariJafari, Hessam]的文章
[Yahia, Ammar]的文章
[Amor, Ben]的文章
必应学术
必应学术中相似的文章
[AzariJafari, Hessam]的文章
[Yahia, Ammar]的文章
[Amor, Ben]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。