3 天之前 · Microplastics -- plastic fragments up to 5 millimeters long -- are inescapable. An estimated 10 to 40 million metric tons of these particles are released into the environment every year, and if current trends continue, that number could double by 2040.

The term microplastics is used to differentiate from larger, non-microscopic plastic waste. Two classifications of microplastics are currently recognized. Primary microplastics include any plastic fragments or particles that are already 5.0 mm in size or less before entering the environment.

2025年1月2日 · Q: Why are microplastics a pressing public health issue? For a long time, oceanographers and marine biologists have focused on the threat to oceanic life for good reason.

2024年12月18日 · A review of the data published Wednesday concludes that microplastics are "suspected" to harm human reproductive, digestive and respiratory health, with a possible link to colon and lung cancer.

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 surround us in modern life make us sick, like those in microplastics.

2015年12月28日 · Microplastics are small plastic pieces less than five millimeters long which can be harmful to our ocean and aquatic life.

2025年1月22日 · microplastics, small pieces of plastic, less than 5 mm (0.2 inch) in length, that occur in the environment as a consequence of plastic pollution. Microplastics are present in a variety of products, from cosmetics to synthetic clothing to plastic bags and bottles.

2024年4月19日 · Plastics find their way into the human body in the form of tiny particles called microplastics (less than 5 mm in diameter) and nanoplastics (less than 1 μm in diameter).

2024年9月19日 · Twenty years after the first publication that used the term microplastic, we review current understanding, refine definitions, and consider future prospects. Microplastics arise from multiple sources, including tires, textiles, cosmetics, …

Microplastic pollution is becoming a major issue for human health due to the recent discovery of microplastics in most ecosystems. Here, we review the sources, formation, occurrence, toxicity and remediation methods of microplastics.