Microplastics in water: Occurrence, fate and removal

Area of Science:

• Environmental Science
• Toxicology
• Public Health

Background:

• Microplastics are pervasive environmental pollutants originating from synthetic textiles, plastic bottles, and packaging.
• These particles are globally distributed via air and water, entering ecosystems and potentially human bodies.
• Previous studies link ingested microplastics to adverse health effects in animals, prompting concern for human health.

Purpose of the Study:

• To review current statistics on microplastic abundance and environmental occurrence.
• To examine the pathways of human exposure to microplastics.
• To explore methods for reducing microplastic exposure and effective removal strategies.

Main Methods:

• Comprehensive literature review of recent microplastics research.
• Analysis of global tap water sample data for microplastic fiber contamination.
• Assessment of environmental fate and transport mechanisms of microplastics.

Main Results:

• Up to 83% of global tap water samples analyzed contained microplastic fibers.
• Microplastics are found in diverse environments, including remote locations like Antarctic snow, indicating widespread dispersal.
• Physicochemical properties, particularly surface characteristics, significantly influence microplastic behavior and pollutant adsorption.

Conclusions:

• Widespread microplastic contamination in tap water necessitates urgent attention to potential human health risks.
• Effective remediation methods, including novel technologies and sustainable green approaches, are crucial for large-scale microplastic removal from water bodies.
• Future research should focus on developing and implementing advanced, eco-friendly solutions for microplastic mitigation.