We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Comparing environmental fate and ecotoxicity of conventional and biodegradable plastics: A critical review
AI summary Read the abstract
This review compares biodegradable and conventional plastics and finds that biodegradable plastics do not always fully break down under natural conditions -- instead they often fragment into microplastics and release chemical additives, similar to conventional plastics. Both types can absorb pollutants from the environment and cause toxic effects in living organisms, challenging the assumption that biodegradable plastics are a safe alternative.
Plastic pollution is a consequential problem worldwide, prompting the widespread use of biodegradable plastics (BPs). However, not all BPs are completely degradable under natural conditions, but instead produce biodegradable microplastics (BMPs), release chemical additives, and absorb micropollutants, thus causing toxicity to living organisms in similar manners to conventional plastics (CPs). The new problems caused by biodegradable plastics cannot be ignored and requires a thorough comparison of the differences between conventional and biodegradable plastics and microplastics. This review comprehensively compares their environmental fates, such as biodegradation and micropollutant sorption, and ecotoxicity in soil and water environments. The results showed that it is difficult to determine the natural conditions required for the complete biodegradation of BPs. Some chemical additives in BPs differ from those in CPs and may pose new threats to ecosystems. Because of functional group differences, most BMPs had higher micropollutant sorption capacities than conventional microplastics (CMPs). The ecotoxicity comparison showed that BMPs had similar or even greater adverse effects than CMPs. This review highlights several knowledge gaps in this new field and suggests directions for future studies.
More Papers Like This
Research advances on the toxicity of biodegradable plastics derived micro/nanoplastics in the environment: A review
AI summary Read the abstract
This review finds that so-called biodegradable plastics may actually be more harmful than conventional plastics in some ways, since they break down into micro- and nanoplastics faster and can release toxic additives more readily. The findings challenge the assumption that biodegradable plastics are a safe alternative and suggest they may pose similar or even greater risks to ecosystems and, potentially, human health.
Biodegradable Microplastics: A Review on the Interaction with Pollutants and Influence to Organisms
AI summary Read the abstract
This review examines the environmental behavior and toxicity of biodegradable microplastics, noting that natural conditions rarely allow complete degradation and that biodegradable plastics may fragment into microplastics more rapidly than conventional plastics. Under some conditions biodegradable microplastics may pose greater risks to organisms than conventional microplastics, particularly in combination with adsorbed pollutants.
Biodegradable Microplastics: Environmental Fate and Persistence in Comparison to Micro- and Nanoplastics from Traditional, Non-Degradable Polymers
AI summary Read the abstract
This review compares biodegradable microplastics with traditional microplastics and finds that while biodegradable versions break down much faster, they still release microplastic-sized particles that can persist in the environment for varying periods. How quickly biodegradable microplastics actually disappear depends heavily on environmental conditions like temperature, moisture, and microbial activity, and lab results often overestimate real-world degradation. The takeaway is that switching to biodegradable plastics helps but does not fully solve the microplastic pollution problem.
Microbial degradation and the persistence paradox of conventional and biodegradable microplastics
AI summary Read the abstract
"Biodegradable" plastics are often marketed as an eco-friendly alternative to regular plastic, but this review of existing research finds that in real-world conditions, many of them don't actually fully break down—they just crumble into smaller microplastic pieces, just like conventional plastic does. This matters because these lingering microplastic fragments (regardless of what type of plastic they came from) can end up in soil, water, food, and ultimately our bodies, meaning switching to "biodegradable" products may not reduce microplastic exposure as much as people assume.
A state-of-the-art review of environmental behavior and potential risks of biodegradable microplastics in soil ecosystems: Comparison with conventional microplastics
AI summary Read the abstract
This review compares the environmental behavior and risks of biodegradable microplastics with conventional microplastics in soil ecosystems. Researchers found that biodegradable microplastics fragment more readily and their abundant functional groups significantly affect how they transport and interact with other contaminants like heavy metals. The study suggests that biodegradable plastics may pose distinct and potentially underestimated risks to soil health compared to their conventional counterparts.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.