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Date
Topic
4/30/2024
PFAS Drinking Water Regulation and Treatment Methods
The EPA has issued the first-ever national, legally enforceable drinking water standard to protect communities from exposure to harmful per-and polyfluoroalkyl substances (PFAS), also known as ‘forever chemicals.’ Exposure to PFAS has been linked to deadly cancers, impacts to the liver and heart, and immune and developmental damage to infants and children. This final rule represents the most significant step to protect public health under EPA’s PFAS Strategic Roadmap. The final rule will reduce PFAS exposure for approximately 100 million people, prevent thousands of deaths, and reduce tens of thousands of serious illnesses. The announcement complements the government-wide action plan to combat PFAS pollution.
This discussion article builds upon existing data to ask whether environmental remediation and treatment is an economically viable solution to manage global environmental stocks of per- and polyfluoroalkyl substances (PFAS) without extensive use restrictions. Their environmental persistence means that PFAS released into the environment will remain there until actively removed and destroyed. Thus, removing and destroying PFAS from the global environment at the same rate they are currently being added reflects a theoretical steady-state condition where global PFAS stocks remain constant. Current costs to remove perfluoroalkyl acids (PFAAs), a subclass of PFAS, from the environment at the same rate they are being added were estimated here at 20 to 7000 trillion USD per year. If the ratio of total PFAS emissions to PFAAs emissions matches current production ratios, total PFAS release rates and associated treatment costs could be 10 to 10,000 higher than presented above for PFAAs only. Thus, current costs to remove and destroy the total PFAS mass released annually into the environment would likely exceed the global GDP of 106 trillion USD. While this level of treatment is not technically or economically achievable, it highlights the unaffordability of using environmental remediation alone to manage environmental PFAS stocks. Without significant reductions in production and emissions, the mass of PFAS present in the global environment will continue to rise. Treating targeted environmental media will be needed to manage human and environmental health impacts, but we are limited to the level of treatment that is practical and affordable
Ao completar dezessete edições realizadas na última década, a iniciativa de aproximação bilateral Benchmarking Internacional Resíduos Sólidos Portugal, promovida pela LAVORO, se consolida no mercado internacional de realização de eventos ambientais como uma experiência única, intensa, exclusiva e reveladora.
Com o objetivo de proporcionar o melhor networking e troca de conhecimento para profissionais do setor, empresas e órgãos públicos brasileiros. Durante uma semana o evento promoverá uma imersão na evolução do setor do ambiente em Portugal, especialmente na área dos resíduos sólidos, ao mesmo tempo em que os participantes desfrutam da enogastronomia e das belezas locais. Serão exploradas as inovações na área de saneamento e gerenciamento de resíduos, desde
o planejamento, a organização, o modelo de negócios, a estruturação de concessões e PPP, os consórcios públicos, o controle, monitoramento e licenciamento ambiental, até as infraestruturas operacionais, a gestão de fluxos específicos de resíduos, coleta seletiva, a logística reversa, reciclagem, a regulação
dos contratos de concessão, modelagem tarifária e tecnologias consolidadas.
Tudo isso levando em conta as particularidades de cada caso e o contexto político, econômico e geográfico de cada arranjo territorial, cultural e populacional. Esta décima sétima edição do Benchmarking Portugal terá início em Lisboa, passará pelos municípios da Chamusca, Leiria, Viseu, Tondela e terminará na cidade do Porto.
A nova fonte de energia elétrica foi desenvolvida a partir de um experimento feito por alunos nos EUA e promete revolucionar o setor de energia renovável
Ciência avança na pesquisa sobre enzimas capazes de decompor plástico, abrindo caminho para nova forma de reciclar esse vilão do meio ambiente. Mas com o planeta produzindo-o cada vez mais, seria uma solução realista?
When we die, one of few things may occur: we’ll be cremated, placed in a casket and buried, or donated for research. There are other options — like being shot into space or put in a casket and pushed into the ocean — but some states are hoping to legalize another option: human composting.
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