{"title":"北冰洋塑料污染管理:综合定量通量估算和政策研究","authors":"Sarah Dewey, Sarah Mackie","doi":"10.1017/s0032247423000268","DOIUrl":null,"url":null,"abstract":"Abstract Plastic pollution in the Arctic marine system is sparsely quantified, and few enforceable policies are in place to ameliorate the issue. With an inflow-outflow budget for the Arctic Ocean, we identify gateways through which plastic enters and exits the Arctic marine system. While estimating the flux of plastic through rivers, sea ice, and ocean, we also quantify marine plastic pollution from Arctic shipping and fishing. Plastic fluxes are calculated using horizontal volume fluxes of water and ice and combining them with plastic waste concentration data; flux from fishing and shipping is generated through combining waste estimates with estimated ship traffic. We estimate that fishing and shipping contribute 10 5 tonnes of plastic flux per annum, compared to 10 −1 tonnes per annum from river inflow. The ocean has a far smaller net outflow, dwarfed by that of ice, at 10 −8 to 10 −7 and 10 −5 to 10 −3 tonnes per annum, respectively. We examine how a suite of proposed policy interventions would quantitatively change those concentrations, and how the current governance environment makes each feasible; we find interventions targeting vessel traffic most effective. These interventions include a prohibition on the use of certain plastics in fishing as well as a Polar Code permitting scheme.","PeriodicalId":49685,"journal":{"name":"Polar Record","volume":"12 1","pages":"0"},"PeriodicalIF":1.4000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Managing plastic pollution in the Arctic ocean: An integrated quantitative flux estimate and policy study\",\"authors\":\"Sarah Dewey, Sarah Mackie\",\"doi\":\"10.1017/s0032247423000268\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Plastic pollution in the Arctic marine system is sparsely quantified, and few enforceable policies are in place to ameliorate the issue. With an inflow-outflow budget for the Arctic Ocean, we identify gateways through which plastic enters and exits the Arctic marine system. While estimating the flux of plastic through rivers, sea ice, and ocean, we also quantify marine plastic pollution from Arctic shipping and fishing. Plastic fluxes are calculated using horizontal volume fluxes of water and ice and combining them with plastic waste concentration data; flux from fishing and shipping is generated through combining waste estimates with estimated ship traffic. We estimate that fishing and shipping contribute 10 5 tonnes of plastic flux per annum, compared to 10 −1 tonnes per annum from river inflow. The ocean has a far smaller net outflow, dwarfed by that of ice, at 10 −8 to 10 −7 and 10 −5 to 10 −3 tonnes per annum, respectively. We examine how a suite of proposed policy interventions would quantitatively change those concentrations, and how the current governance environment makes each feasible; we find interventions targeting vessel traffic most effective. These interventions include a prohibition on the use of certain plastics in fishing as well as a Polar Code permitting scheme.\",\"PeriodicalId\":49685,\"journal\":{\"name\":\"Polar Record\",\"volume\":\"12 1\",\"pages\":\"0\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polar Record\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1017/s0032247423000268\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polar Record","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/s0032247423000268","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECOLOGY","Score":null,"Total":0}
Managing plastic pollution in the Arctic ocean: An integrated quantitative flux estimate and policy study
Abstract Plastic pollution in the Arctic marine system is sparsely quantified, and few enforceable policies are in place to ameliorate the issue. With an inflow-outflow budget for the Arctic Ocean, we identify gateways through which plastic enters and exits the Arctic marine system. While estimating the flux of plastic through rivers, sea ice, and ocean, we also quantify marine plastic pollution from Arctic shipping and fishing. Plastic fluxes are calculated using horizontal volume fluxes of water and ice and combining them with plastic waste concentration data; flux from fishing and shipping is generated through combining waste estimates with estimated ship traffic. We estimate that fishing and shipping contribute 10 5 tonnes of plastic flux per annum, compared to 10 −1 tonnes per annum from river inflow. The ocean has a far smaller net outflow, dwarfed by that of ice, at 10 −8 to 10 −7 and 10 −5 to 10 −3 tonnes per annum, respectively. We examine how a suite of proposed policy interventions would quantitatively change those concentrations, and how the current governance environment makes each feasible; we find interventions targeting vessel traffic most effective. These interventions include a prohibition on the use of certain plastics in fishing as well as a Polar Code permitting scheme.
期刊介绍:
Polar Record is an international, peer-reviewed scholarly periodical publishing results from a wide range of polar research areas. The journal covers original primary research papers in the humanities, social sciences, physical sciences, life sciences, and polar technology, as well as papers concerning current political, economic, legal, and environmental issues in the Arctic or Antarctic. Polar Record endeavours to provide rapid publication, normally within nine months of initial submission.