There are also two types of microplastics: primary and secondary. Primary microplastics are those produced directly as microparticles, such as microbeads – the little plasticky balls you used to ...

Scientists map microplastics across ocean depths, revealing their deep spread, persistence, and potential climate impact.

Three million tonnes of primary microplastics are released into the environment every year, with a further 5.3 million tonnes of larger plastic items that can degrade into secondary microplastics ...

the release of intentionally manufactured microplastics (primary microplastics) and (2) the degradation of larger plastic products (secondary microplastics). Primary microplastics may include ...

Microplastics are tiny plastic fragments with a diameter of 5 millimeters or less. Primary microplastics, which are used as scrubbing agents in facial cleansers and toothpaste, can enter water ...

Marine plastic pollution is a global crisis, with 9 to 14 million metric tons of plastic entering the ocean every year. Tiny ...