Legacy pollution or legacy pollutants are persistent materials in the environment that were created through a polluting industry or process that have polluting effects after the process has finished. Frequently these include persistent organic pollutants, heavy metals or other chemicals residual in the environment long after the industrial or extraction processes that produced them.[1][2][3][4] Often these are chemicals produced by industry and polluted before there was widespread awareness of the toxic effects of the pollutants, and subsequently regulated or banned.[3] Notable legacy pollutants include mercury, PCBs, Dioxins and other chemicals that are widespread health and environmental effects.[5][3] Sites for legacy pollutants include mining sites, industrial parks, waterways contaminated by industry, and other dump sites.
These chemicals often have outsized impact in countries jurisdictions with little or no environmental monitoring or regulation—because the chemical were often produced in new jurisdictions after they were banned in more heavily regulated jurisdictions.[4] Often in these countries, there is a lack of capacity in environmental regulatory, health and civic infrastructure to address the impact of the pollutants.[4]
The impact of legacy pollutants can be visible many years after the initial polluting process, and require environmental remediation.[6] Grassroots communities and environmental defender frequently advocate for responsibility of industry and states through environmental justice action and advocacy for recognition of human rights, such as the right to a healthy environment.[6][7][8]
^dksackett (2018-01-22). "Legacy pollution, an unfortunate inheritance". The Fisheries Blog. Retrieved 2023-03-10.
^Technology, International Environmental. "What Is Legacy Pollution?". Envirotech Online. Retrieved 2023-03-10.
^ abcKhwaja, Mahmood A. (2020-11-12). "Toxic Legacy Pollution: Safeguarding Public Health and Environment from Industrial Wastes". Sustainable Development Policy Institute – via Think-Asia.
^Environment, U. N. (2017-09-13). "PCBs a forgotten legacy?". UNEP - UN Environment Programme. Retrieved 2023-03-10.
^ abSanchez, Heather K.; Adams, Alison E.; Shriver, Thomas E. (2017-03-04). "Confronting Power and Environmental Injustice: Legacy Pollution and the Timber Industry in Southern Mississippi". Society & Natural Resources. 30 (3): 347–361. Bibcode:2017SNatR..30..347S. doi:10.1080/08941920.2016.1264034. ISSN 0894-1920. S2CID 151362873.
^D., Bullard, Robert (2008). The quest for environmental justice : human rights and the politics of pollution. Sierra Club Books. ISBN 978-1-57805-120-5. OCLC 780807668.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Dermatas, Dimitris (May 2017). "Waste management and research and the sustainable development goals: Focus on soil and groundwater pollution". Waste Management & Research: The Journal for a Sustainable Circular Economy. 35 (5): 453–455. Bibcode:2017WMR....35..453D. doi:10.1177/0734242x17706474. ISSN 0734-242X. PMID 28462675. S2CID 41048855.
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