General description of the topic: Microplastics are tiny plastic particles measuring less than 5mm in size that pollute water sources worldwide. They can originate from various sources such as plastic bags, bottles, and microbeads from personal care products.

Cause of the problem or issue: Microplastics enter water bodies through various pathways including runoff from land, wastewater discharge, and fragmentation of larger plastic debris.

Location of where the problem or issue is occurring: Microplastics have been found in oceans, rivers, lakes, and even groundwater, affecting water bodies globally.

Effects on the environment, ecosystems, and/or water resources: Microplastics can harm aquatic life by being ingested or absorbed, leading to physical harm, bioaccumulation, and disruption of ecosystems.

Effects on humans: There are concerns about the potential health impacts of consuming microplastics through contaminated water or seafood, although research is ongoing to fully understand these effects.