Microplastics and their Additives in the Indoor Environment

Area of Science:

• Environmental Science
• Public Health
• Materials Science

Background:

• Indoor environments are increasingly recognized as significant reservoirs for microplastic contamination.
• Sources of indoor microplastics include abrasion, household product additives, artificial turf, equestrian litter, and textiles.
• The potential contribution of 3D printing particulate emissions to microplastic and nanoplastic pollution requires investigation.

Purpose of the Study:

• To review current exposure levels of residents to indoor microplastics.
• To identify trends in indoor microplastic contamination.
• To propose preventive measures and highlight the need for increased consideration of microplastics in environmental surveys.

Main Methods:

• Literature review of existing studies on indoor microplastic sources and exposure.
• Analysis of data on microplastic presence in air and house dust.
• Identification of emerging sources like 3D printing and textiles.

Main Results:

• Indoor microplastic pollution presents a fundamental hygienic challenge.
• Microplastics are ubiquitous in indoor environments, originating from diverse sources.
• Emerging technologies like 3D printing and common materials like textiles are potential contributors.

Conclusions:

• Microplastic and nanoplastic emissions from 3D printing warrant classification and further study.
• Textiles are a significant, yet often overlooked, source of indoor microplastics.
• Future indoor environmental surveys must incorporate microplastics and their additives to accurately assess exposure and risks.