Microplastic Contamination in Riverine Macroinvertebrates: A Widespread Ecological Concern
Microplastic particles are prevalent in riverine macroinvertebrates across various sites, indicating a significant pathway for these pollutants to enter freshwater food webs.
The Science of The Total Environment · 2018
Key Findings
- 01Microplastic particles were found in approximately 50% of macroinvertebrate samples.
- 02Microplastic ingestion occurred at all sampled sites, regardless of proximity to wastewater treatment works.
- 03Microplastic abundance correlated with macroinvertebrate biomass and taxonomic family but not with feeding guild or biological traits.
- 04Microplastic ingestion showed a marginal increase with higher effluent discharge contributions to total runoff and a decrease with increasing river discharge.
Application
Design takeaway
Prioritize the development and use of materials and products that minimize microplastic shedding into aquatic environments, as these pollutants are already widespread and entering food webs.
How to apply
When designing products that may interact with water systems (e.g., textiles, personal care products, outdoor equipment), conduct a lifecycle assessment to identify potential microplastic shedding points and explore alternative materials or design features to mitigate this.
Project actions
- 01When researching materials, consider their potential to break down into microplastics.
- 02Investigate how product use and disposal might contribute to microplastic pollution in aquatic environments.
- 03Think about how to design products that are less likely to shed microplastics.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Investigated a less-studied aspect of microplastic pollution (freshwater ecosystems).
- +Quantified microplastic presence across multiple sites and linked it to biological and environmental factors.
Limitations
The study focused on specific types of river organisms and may not represent all freshwater ecosystems. The long-term effects of microplastic ingestion on these organisms were not detailed.
Reliability & validity
The study's reliability is supported by the quantification of microplastics and statistical analysis of influencing factors. Validity is enhanced by sampling across multiple sites and considering various biological and environmental variables.
Think critically
Given that microplastics are found upstream of wastewater treatment works, what are the primary sources of these pollutants in river systems, and how can design interventions address these upstream sources?
Design Principles
"Design for minimal environmental pollutant release."
Understanding the widespread presence of microplastics in aquatic organisms is crucial for assessing ecological health and the potential for bioaccumulation. This knowledge informs strategies for pollution control and the design of more sustainable material lifecycles.
What This Means for Your Design
Tiny plastic bits are getting into river bugs, showing that pollution from plastic isn't just in the oceans, but also in our rivers, and these bugs are eating them.
How to use in your project
- 1.Use this study to justify the importance of investigating microplastic pollution as a design problem.
- 2.Cite this research when discussing the environmental impact of materials or product lifecycles.
Add to My Project
Quick Cite
(2018). Microplastic ingestion by riverine macroinvertebrates. The Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2018.07.271 Retrieved from https://designdex.org/study/b658a878-fee2-4cef-a8fe-073f53c9d873/microplastic-contamination-in-riverine-macroinvertebrates-a-widespread-ecological-concern
Paragraph starter
Research indicates that microplastic particles are a pervasive pollutant in freshwater ecosystems, with studies showing their presence in riverine macroinvertebrates across multiple sites. This widespread contamination highlights a significant pathway for microplastics to enter aquatic food webs, necessitating design considerations that minimize microplastic shedding throughout a product's lifecycle.
Source
The Science of The Total Environment
Microplastic ingestion by riverine macroinvertebrates
journal · 2018
View sourceQuestions about this research
- What does the research say about microplastic contamination in riverine macroinvertebrates: a widespread ecological concern?
- Prioritize the development and use of materials and products that minimize microplastic shedding into aquatic environments, as these pollutants are already widespread and entering food webs. Evidence: The Science of The Total Environment (2018).
- Why does "Microplastic Contamination in Riverine Macroinvertebrates: A Widespread Ecological Concern" matter for design?
- Understanding the widespread presence of microplastics in aquatic organisms is crucial for assessing ecological health and the potential for bioaccumulation. This knowledge informs strategies for pollution control and the design of more sustainable material lifecycles.
- How can designers apply this research?
- Prioritize the development and use of materials and products that minimize microplastic shedding into aquatic environments, as these pollutants are already widespread and entering food webs.
- What were the main findings?
- Microplastic particles were found in approximately 50% of macroinvertebrate samples.. Microplastic ingestion occurred at all sampled sites, regardless of proximity to wastewater treatment works.. Microplastic abundance correlated with macroinvertebrate biomass and taxonomic family but not with feeding guild or biological traits.. Microplastic ingestion showed a marginal increase with higher effluent discharge contributions to total runoff and a decrease with increasing river discharge.
- What research method was used?
- Field sampling and laboratory analysis with Not explicitly stated, but samples were collected from five UK Wastewater Treatment Works and included multiple macroinvertebrate families..
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2018 journal from The Science of The Total Environment.
- What should I do differently in my next project?
- When designing products that may interact with water systems (e.g., textiles, personal care products, outdoor equipment), conduct a lifecycle assessment to identify potential microplastic shedding points and explore alternative materials or design features to mitigate this.
- What are the limitations?
- The study focused on specific macroinvertebrate families and did not investigate all potential pathways of microplastic entry into the food web. The direct impact of microplastic ingestion on the health of these organisms was not assessed.
- Is there evidence that riverine macroinvertebrates affects design outcomes?
- Microplastics are a common contaminant in river insects, entering the food web through detritivores and filter feeders, with ingestion levels influenced by water flow and the proportion of wastewater in the river. Understanding the widespread presence of microplastics in aquatic organisms is crucial for assessing ecolo Source: The Science of The Total Environment (2018).
- Where does this entering food research apply?
- Freshwater river ecosystems, specifically in the UK, focusing on macroinvertebrates as indicators of pollution. It sits within resource management research on designdex.org.
Related research topics
riverine macroinvertebrates design research · evidence on riverine macroinvertebrates · does riverine macroinvertebrates improve design outcomes · entering food studies for designers · riverine macroinvertebrates and entering food findings · resource management research evidence