Confronting Unknown Planetary Boundary Threats from Chemical Pollution

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• 作者：Linn M. Persson ; Magnus Breitholtz ; Ian T. Cousins ; Cynthia A. de Wit ; Matthew MacLeod ; Michael S. McLachlan
• 刊名：Environmental Science & Technology
• 出版年：2013
• 出版时间：November 19, 2013
• 年：2013
• 卷：47
• 期：22
• 页码：12619-12622
• 全文大小：194K
• 年卷期：v.47,no.22(November 19, 2013)
• ISSN：1520-5851

文摘

Rockstr枚m et al. proposed a set of planetary boundaries that delimitate a 鈥渟afe operating space for humanity鈥? One of the planetary boundaries is determined by 鈥渃hemical pollution鈥? however no clear definition was provided. Here, we propose that there is no single chemical pollution planetary boundary, but rather that many planetary boundary issues governed by chemical pollution exist. We identify three conditions that must be simultaneously met for chemical pollution to pose a planetary boundary threat. We then discuss approaches to identify chemicals that could fulfill those conditions, and outline a proactive hazard identification strategy that considers long-range transport and the reversibility of chemical pollution.