Related Experiment Video

Updated: Aug 31, 2025

Separation and Identification of Conventional Microplastics from Farmland Soils
14:10

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

1.9K

Indoor microplastics and bacteria in the atmospheric fallout in urban homes

Jiawen Cui1, Chen Chen1, Quan Gan1

  • 1College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China.

The Science of the Total Environment
|August 25, 2022
PubMed

Insights

Indoor microplastics (MPs) and bacteria vary by room usage and occupant age. MP levels correlate with bacterial communities, influenced by household factors like cleanliness and activities.

Area of Science:

  • Environmental Science
  • Microbiology
  • Materials Science

Background:

  • Humans are exposed to microplastics (MPs) via food, drink, and air.
  • Indoor environments are significant reservoirs for MPs, but atmospheric deposition and bacterial interactions within homes remain understudied.

Purpose of the Study:

  • To compare atmospheric microplastic and bacterial deposition characteristics across different rooms in homes.
  • To investigate the influence of room usage duration, household occupants, and cleanliness on MP and bacterial presence.

Main Methods:

  • Atmospheric deposition of microplastics and bacteria was collected from five room types in 20 homes.
  • Microplastics were identified by polymer type, and bacterial communities were analyzed by genus and phylum.
  • Data were correlated with room usage, human activities, household goods, cleanliness, and occupant demographics (age).

Main Results:

  • A total of 23,889 microplastic particles (21 types) and 383 bacterial genera were identified.
  • Microplastic abundance and composition were linked to room usage duration, human activities, goods, cleanliness, and occupant composition.
  • Homes with elderly occupants exhibited higher bacterial concentrations compared to younger families.
  • A significant correlation was observed between microplastic concentration and bacterial community structure, with specific polymers (polyamide, polyurethane, polyethylene) positively correlating with bacterial phyla.

Conclusions:

  • Different rooms within homes display distinct microplastic abundances and bacterial community structures.
  • Household factors such as age, cleanliness, and human activities significantly influence indoor airborne microplastic and bacterial profiles.
  • Microplastics and indoor microbiota are interconnected, suggesting potential implications for human health and indoor environmental quality.
Keywords:
AgeAirborne MPHealth riskHomeMicrobiota

More Related Videos

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris05:31

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

16.1K
Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis10:16

Protocol for Microplastics Sampling on the Sea Surface and Sample Analysis

Published on: December 16, 2016

49.9K

Related Concept Videos

Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
1.9K
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
191
Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
206