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Ecotoxicology of Plastic Additives: Environmental and Health Perspectives
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This review pulls together existing research showing that chemicals added to plastics (like phthalates and flame retardants) can leach out over time and enter our food, air, and water. Once in our bodies, these additives have been linked to hormone disruption, reproductive problems, and even cancer. The authors call for stricter regulations and better recycling to reduce our exposure.
Abstract Plastic additives, such as plasticizers, flame retardants, and stabilizers, enhance the performance of plastic products but contribute to severe environmental and health-related issues. These additives can leach into ecosystems due to UV radiation, temperature fluctuations, and weathering, contaminating terrestrial and aquatic environments. This leaching disrupts food chains and harms organisms, causing effects like inhibited microalgae growth, reproductive damage in marine species, and increased fish mortality. Human exposure to plastic additives happens via consumption, inhalation, and skin absorption, leading to endocrine disruption, reproductive toxicity, neurodevelopmental disorders, and cancer. Hazardous additives, such as phthalates (PAEs) and brominated flame retardants (BFRs), are commonly detected in the environment and food chain, though comprehensive data on their full impacts remain limited. Existing waste management systems face challenges in managing the wide variety of plastic additives, highlighting the need for effective degradation and recycling methods. This chapter explores sustainable solutions like photodegradation and microbial degradation in reducing plastic additive pollution. Effective mitigation also requires comprehensive policy measures, such as enforcing stricter regulations on hazardous additives, promoting zero-waste goals, and investing in safer alternatives. Additionally, corporations must take responsibility by adopting transparent labeling and minimizing non-circular plastics. Efforts to improve end-of-life plastic treatment are essential for reducing environmental and health risks. By highlighting current knowledge gaps—particularly regarding human health risks and impacts on terrestrial ecosystems—this study advocates for improved research and policy measures to reduce plastic additives’ environmental and public health threats.
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Understanding the leaching of plastic additives and subsequent risks to ecosystems
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This review explains how chemical additives in plastics -- including plasticizers, flame retardants, and stabilizers -- can leach out of microplastics into the environment and potentially into the human body. Some of these additives, such as phthalates and brominated flame retardants, are persistent, build up in living tissue, and are linked to hormone disruption and other health effects. The authors note that our understanding of the full toxicity risk from leaching plastic additives is still limited.
Occurrence and effects of plastic additives on marine environments and organisms: A review
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This review examines chemical additives found in plastics, such as flame retardants, phthalates, and bisphenol A, and how they leach into the marine environment as plastics accumulate and fragment. Researchers summarize evidence showing that these additives have been detected in marine water, sediment, and organisms, and can transfer from ingested plastic into animal tissues. The findings highlight that the chemical risk from plastic additives deserves as much attention as the physical impacts of microplastic particles themselves.
Environmental occurrence and ecotoxicological risks of plastic leachates in aquatic and terrestrial environments
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This review examines how chemical additives that leach out of plastics -- including hormone disruptors like BPA and phthalates -- affect organisms in both water and land environments. The chemicals' harmful effects depend on environmental conditions like temperature and UV exposure, which influence how much leaches out and how easily organisms absorb it. The findings highlight that the danger of plastic pollution extends beyond the physical particles to the toxic chemicals they release.
Additives of Plastic: Entry Into the Environment and Potential Risks to Human and Ecological Health
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This review synthesizes evidence on plastic chemical additives—including plasticizers, bisphenols, flame retardants, and PFAS—showing they leach from polymers throughout the plastic lifecycle and accumulate in human tissues, soils, and water, where they drive endocrine disruption, genotoxicity, and carcinogenicity while regulatory frameworks remain fragmented and insufficient.
Environmental and health hazards of chemicals in plastic polymers and products
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Researchers reviewed the environmental and health hazards of chemicals in plastic polymers and products, examining the toxicological profiles of monomers, additives, and degradation products that can leach from plastics into food, water, and the environment. The study identifies numerous plastic-associated chemicals with endocrine-disrupting, carcinogenic, or developmental toxicity potential and calls for more comprehensive safety testing of plastic formulations.
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