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Effects of Treated and Untreated Sludge Applications on Human Health, the Environment and Other Ecological Factors
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Researchers reviewed how applying treated and untreated sewage sludge to agricultural land introduces a cocktail of contaminants — including microplastics, pharmaceuticals, and heavy metals — into soils, raising concerns about cumulative risks to human health and surrounding ecosystems.
The use of treated and untreated sewage sludge in agriculture has been a widespread practice due to its potential benefits. However, the presence of different contaminants in the composition of sludge such as microplastics, pharmaceutical active substances, heavy...
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Micro-Nano-Plastics in Sewage Sludge: Sources, Occurrence, and Potential Environmental Risks
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Researchers reviewed how microplastics accumulate in sewage sludge — the byproduct of wastewater treatment — posing a significant environmental risk when sludge is applied to agricultural land. Because sludge is commonly used as fertilizer, microplastics from many sources can end up in soils and eventually in the food supply.
Current Progress of Microplastics in Sewage Sludge
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Researchers reviewed the presence of microplastics in sewage sludge, finding that while wastewater treatment plants capture most microplastics from water, the resulting sludge becomes a concentrated reservoir that can spread microplastics to agricultural soils when applied as fertilizer.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.