The microplastic pollution of freshwater systems has been a global environmental concern, yet there is a lack of knowledge on tropical rivers. This paper examined the relationships between spatiotemporal microplastic abundance and river water physicochemical and hydrological parameters in the surface water of four rivers of Sarawak in Malaysia (Baram, Miri, Sibuti, and Niah), followed by ecological risk assessment using PLI, P...

Mangroves, also called blue carbon ecosystems, are crucial as carbon sinks and in climate change mitigation. However, these ecosystems become vulnerable due to plastic pollution, particularly microplastics. A synthesis of studies across Asia, South America, and North America demonstrates that the microplastic contamination in surface waters and sediments is widespread. Fibres and fragments originating from polypropylene (PP) a...