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| 1 | Screening-level exposure-based prioritization to identify potential POPs, vPvBs and planetary boundary threats among Arctic contaminants显示文摘A report that reviews Arctic contaminants that are not currently regulated as persistent organic pollutants(POPs)under international treaties was recently published by the Arctic Monitoring and Assessment Programme(AMAP).We evaluated 464 individual chemicals mentioned in the AMAP report according to hazard profiles for POPs,very persistent and very bioaccumulative(vPvB)chemicals,and two novel and distinct hazard profiles we derived from the planetary boundary threat framework.The two planetary boundary threat profiles assign high priority to chemicals that will be mobile and poorly reversible environmental contaminants.Utilizing persistence as a proxy for poor reversibility,we defined two exposure-based hazard profiles;airborne persistent contaminants(APCs)and waterborne persistent contaminants(WPCs)that are potential planetary boundary threats.We used in silico estimates of physicochemical properties and multimedia models to calculate hazard metrics for persistence,bioaccumulation and long-range transport potential,then we synthesized this information into four exposure-based hazard scores of the potential of each AMAP chemical to fit each of the POP,vPvB,APC and WPC exposure-based hazard profiles.As an alternative to adopting a“bright line”score that represented cause for concern,we scored the AMAP chemicals by benchmarking against a reference set of 148 known and relatively well-studied contaminants and expressed their exposure-based hazard scores as percentile ranks against the scores of the reference set chemicals.Our results show that scores in the four exposure-based hazard profiles provide complementary information about the potential environmental exposure-based hazards of the AMAP chemicals.Our POP,vPvB,APC and WPC exposure-based hazard scores identify high priority chemicals for further study from among the AMAP contaminants. | Efstathios Reppas-Chrysovitsinos Anna Sobek Matthew MacLeod | 2017 | Emerging Contaminants2017，3，2： | 3 |
| 2 | Estimation of cumulative aquatic exposure and risk due to silver: Contribution of nano-functionalized plastics and textiles显示文摘 | Sabine A. Blaser Martin Scheringer Matthew MacLeod Konrad Hungerbühler | 2007 | Science of the Total Environment2007，，2： | 1 |
| 3 | Anxiety and the allocation of attention to threat 显示文摘 | MacLeod C Matthews A | 1988 | Q J Exp Psychol1988，40，： | 1 |
| 4 | A regionally segmented national scale multimedia contaminant fate model for Canada with GIS data input and display 显示文摘 | David Woodfine Matthew Macleod Don Mackay | 2002 | Environmental Pollution2002，119，： | 1 |
| 5 | Mercury cycling and species mass balances in four North American lakes显示文摘 | Asif Qureshi Matthew MacLeod Martin Scheringer Konrad Hungerbühler | 2008 | Environmental Pollution2008，，2： | 1 |
| 6 | Sodium and chloride channelopathies with myositis:coincidence or connec-tion? 显示文摘 | Matthews E Miller JA MacLeod MR | 2011 | Muscle Nerve2011，44，： | 1 |
| 7 | Integration of production and use information into an exposure-based screening approach to rank chemicals of emerging Arctic concern for potential to be planetary boundary threats显示文摘Planetary boundaries delimit a‘safe operating space for humanity’that should not be overstepped to maintain stable Holocene-like conditions on Earth.Some chemical pollutants have the potential to pose a planetary boundary threat to the functioning of vital Earth system processes as so-called‘novel entities’.Recently,an exposure-based prioritization scheme was developed that uses model-estimated data on persistence and degree of mobility in air and water to identify and prioritise chemical substances that may be planetary boundary threats.As a case study,chemicals of emerging Arctic concern identified by the Arctic Monitoring and Assessment Programme(AMAP)were used to develop the scheme.The exposure-based prioritization scheme cannot address all scenarios for a chemical to pose an unknown planetary boundary threat,but it does allow for prioritization of chemicals according to environmental fate and exposure profiles.A key limitation of the scheme is that the quantity of chemical potentially released to the environment was not considered in the prioritization.Here,we use data on chemical production and use reported under the European chemicals regulation REACH,and an emission scoring system developed by the European Food Safety Authority(EFSA)to attempt to add information about estimated emissions to the exposure-based prioritization scheme.Using REACH data and the EFSA scoring system,we ranked the AMAP substances according to their potential for environmental release and combined that information with the previously reported exposure-based prioritization that considers persistence and long-range transport potential.Our method successfully assigned‘high priority’to known ozone-depleting substances(methyl chloride and dichloromethane)and identified chemicals of concern recently under consideration for nomination as persistent organic pollutants under the Stockholm Convention(octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane).The EFSA scoring system offers a useful starting point that provided useful additional information in the case study for chemicals of emerging Arctic concern,but lack of information to estimate potential releases of chemicals was a major limitation. | Marta Plaza-Hernandez Juliette Legler Matthew MacLeod | 2021 | Emerging Contaminants2021，7，1： | 0 |
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