Toxicity

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Microplastics: Small But Mighty | Dimitri Deheyn | TEDxEncinitas Blvd
TEDx Talks· 2025-07-21 16:15
Environmental Impact of Plastics - Millions of tons of plastic waste end up on land, with 15 million tons directly entering the ocean annually [3] - Plastic persists in the environment for extended periods, ranging from 20 years to 450-600 years for nylon [3][4] - Macroplastics break down into secondary microplastics, while microplastics are also directly created from cosmetics, clothing, and tires [7][8][9] - Over 90% of drinking water samples contain microplastics, impacting not only bottled water but also water fountains and other liquids like beer and wine [13] Toxicity and Health Concerns - Microplastics can mechanically impair biological systems by jamming veins and the bloodstream [17] - Microplastics accumulate chemicals and pathogens, leading to potential chemical impairment in the body [16][18] - Synthetic polymers, due to their slow disintegration, can cause chronic toxic effects, potentially leading to conditions like lung cancer, while natural polymers may cause acute, localized toxicity like bronchitis [23][24] Addressing the Problem - Fast fashion contributes significantly to textile waste and microplastic pollution, with each wash releasing approximately 2,000 plastic particles per item, totaling about 12 million tons per year that wastewater treatment plants cannot capture [26][28] - The industry needs to bridge the gaps between academia, industry, and education to address microplastic pollution effectively [32] - Priorities include reducing textile waste, studying textile weathering, and investigating microplastics in lungs and intestines to determine toxicity levels [35][36] - A global vision is essential, involving the collection of microplastics from various environments (atmosphere, water, food) worldwide to understand and mitigate the problem [37][38]
X @The Economist
The Economist· 2025-07-09 23:20
Health & Safety - Some natural substances in juice can be toxic in high quantities [1] - Fresh fruit is a cheaper alternative to juice [1] Consumer Behavior - Caution is advised when consuming juice due to potential toxicity [1]