5 天之前 · The durability of plastic molecules contributes to their staying power -- scientists believe that all the plastic ever made, besides that which has been incinerated, is still around in a form that can't degrade naturally (burning plastic releases toxic chemicals and heavy metals). To date, microplastics have been found in 1,300 species ...

2023年11月1日 · Plastic is not only polluting our bodies and our oceans but contributing to the devastating impacts of climate change. Peril & Promise spoke with experts at Oceana, a nonprofit ocean conservation...

Our study highlights the need for better experimental studies under well-defined reaction conditions, standardized reporting of rates, and methods to simulate polymer degradation using. Reported degradation rates of common plastics were harmonized using the specific surface degradation rate (SSDR), which was then used to estimate half-lives.

Plastic and microplastic pollution has caused a great deal of ecological problems because of its persistence and potential adverse effects on human health. The degradation of plastics through biological processes is of great significance for ...

2021年9月1日 · The present review describes plastic classification, plastic types, degradation types, biodegradation and mechanism of biodegradation. This review focuses on microbial degradation of plastic/microplastics which has received less attention as compared to the toxicity of plastic/microplastics in terrestrial and marine environments to eradicate ...

2025年1月21日 · Plastic pollution is in soil and streams, drinking water and wildlife—and even inside of us. A staggering amount of plastic trash ends up in the ocean, and it is increasing at an alarming rate. Foregoing drinking straws at restaurants and bringing reusable bags to the market are good steps to take—but a problem of this enormity requires ...

2024年2月27日 · An invisible invasion by land, air and sea: Microscopic plastic pieces are in the food we eat, the air we breathe and the water we drink – bottled or not. For more than three decades, UC San Francisco Professor of Obstetrics and Gynecology and Reproductive Sciences Tracey Woodruff , PhD, MPH, has researched how the toxic chemicals that ...

4 天之前 · Their "crosslinked polymer" chemical structure guarantees longevity but also makes these petrochemical-based materials—which comprise 15%–20% of all polymers produced—impossible to recycle. ...

6 天之前 · Turns out that the black plastic lid atop your coffee cup has a superpower. And the Stache Lab, which uncovered it, is exploiting that property to recycle at least two major types of plastic.. Their startling mechanism for promoting depolymerization relies on an additive that many plastics already contain: a pigment called carbon black that gives plastic its black color.

2024年1月31日 · Different pathways that maximize recirculation of carbon (dioxide) between plastics waste and feedstocks are outlined, including mechanical, chemical and biological recycling, and those involving...