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The Fate and Effects of Emerging Pollutants in the Environment
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Everyday chemicals from medicines, personal care products, pesticides, and plastics—including microplastics and "forever chemicals" (PFAS)—are slipping through our wastewater systems and building up in water, soil, and even our food chain, largely unchecked by current regulations. This review of existing research shows these pollutants can disrupt hormones, help harmful bacteria become drug-resistant, and harm wildlife and ecosystems that humans ultimately depend on. The takeaway: better treatment technology and stronger environmental regulations are needed to keep these under-the-radar chemicals from continuing to accumulate in
Emerging pollutants (EPs), widely designated as Contaminants of Emerging Concern (CECs), encompass a diverse array of both anthropogenic and naturally occurring chemical substances that have historically remained outside the scope of formal environmental monitoring programs and regulatory classification. The group spans a broad chemical spectrum, ranging from antibiotics, synthetic hormones, and personal care products to agrochemicals, manufactured nanomaterials, microplastic particles, and recalcitrant industrial chemicals, including per- and polyfluoroalkyl substances (PFAS). EPs exhibit a pronounced resistance to elimination by standard wastewater treatment infrastructure, which contributes to their sustained presence in aquatic, soil, and atmospheric environments. Entry pathways into the environment encompass effluent discharges from both treated and untreated wastewater systems, runoff from cultivated lands, atmospheric deposition, and contamination leaching from solid waste facilities. Collectively, these routes have resulted in their detection in surface waters, groundwater, soil profiles, sediment beds, and the tissues of living organisms worldwide. The environmental and ecological ramifications of EPs’ presence are wide-ranging: these substances induce chronic sub lethal harm in non-target species, impair endocrine regulatory functions, accelerate the development of antibiotic-resistant bacterial populations, and alter the structural and functional properties of microbial assemblages. Terrestrial systems face diminished biodiversity and restricted plant productivity. Managing this multifaceted environmental challenge will require the combined application of cutting-edge treatment technologies, substantive reform of existing effluent regulations, and the construction of globally integrated and sustained monitoring frameworks.
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Systematic review of emerging environmental contaminants: sources, environmental fate, and impacts
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This review pulls together existing research on "emerging contaminants" — things like forever chemicals (PFAS), leftover medications, microplastics, and hormone-disrupting substances that build up in our water, soil, and food chains. The takeaway: these pollutants don't break down easily, accumulate in living things over time, and have been linked to hormone disruption, cell damage, and antibiotic resistance, yet current safety testing and regulations haven't caught up to the scale of the problem. For consumers, this underscores why reducing exposure to plastics and unnecessary chemical products matters, and why stronger monitoring and regulation are
Contaminants of emerging concern (CECs) in aquatic and terrestrial environments: Sources, impacts, and remediation strategies
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This review pulls together research on "emerging contaminants"—things like leftover medications, PFAS "forever chemicals," pesticides, and microplastics—that are increasingly showing up in our water and soil from everyday sources like factories, farms, and household waste. These pollutants build up over time and are linked to health risks, but current water treatment systems often aren't equipped to fully remove them, meaning we're likely getting low-level exposure through our water supply. The takeaway: stronger pollution controls and better treatment technology are needed to keep these chemicals out of the water we drink and the environment we live in.
Reactivity and environmental fate of emerging contaminants in wastewater treatment systems: A reactive continuum framework approach
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This review pulls together existing research showing that everyday wastewater treatment plants often can't fully break down "emerging contaminants" like drug residues, hormones, PFAS ("forever chemicals"), and microplastics—instead, these pollutants get partially transformed or shifted into sludge and water in ways that are hard to predict. This matters because incomplete treatment means these substances, including microplastics, can still make their way into rivers, drinking water, and eventually our bodies, where they may build up over time; the authors propose a new framework to better predict which chemicals slip through so treatment plants and regulations can be designed to catch them.
Emerging Industrial Pollutants in Wastewater: Occurrence, Environmental Fate, Toxicological Mechanisms and Treatment Strategies
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This review summarizes existing research on pollutants found in wastewater, including pharmaceuticals, PFAS, microplastics, and other industrial chemicals. It covers how these substances occur, spread, and affect microorganisms, wildlife, and humans, along with methods for detecting and treating them. The authors note gaps remain in understanding long-term risks and effects of mixtures.
Emerging Contaminants in Drinking Water: Implications for Public Health and Water Treatment
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Your tap water may contain low levels of drug residues, "forever chemicals" (PFAS), microplastics, and other modern pollutants that standard water treatment plants aren't fully designed to remove. This review of existing research finds that while we don't fully understand the long-term health effects, these contaminants have been linked to hormone disruption and antibiotic resistance—and newer filtering technologies that could remove them more effectively remain expensive and aren't widely used yet. The takeaway: better testing, updated regulations, and improved treatment methods are needed to make drinking water safer as science catches up.
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