Non-essential use of benzotriazole ultraviolet stabilizers in single-use plastics manufactured in India: An avoidable class of plastic additives
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View abstract on PubMed
Summary
This summary is machine-generated.Benzotriazole UV stabilizers (BUVs) were found in Indian plastic debris, with highest levels in food contact materials. These plastics can leach BUVs, posing ecological risks and raising human health concerns.
Area Of Science
- Environmental Chemistry
- Polymer Science
- Ecotoxicology
Background
- Benzotriazole UV stabilizers (BUVs) are crucial additives in plastics for UV protection.
- BUVs are classified as persistent, mobile, and toxic, necessitating research into their environmental presence.
- Limited data exists on BUV concentrations within diverse plastic types.
Purpose Of The Study
- To quantify six major BUVs in plastic debris from Indian water bodies.
- To categorize plastic debris by usage: food contact materials (FCMs), personal care products (PCPs), and household items.
- To assess the leaching potential and ecological risk of BUVs from plastic debris.
Main Methods
- Collection and categorization of plastic debris from Indian water bodies.
- Analysis of six major BUVs (UV-P, UV-327, UV-326, UV-328, UV-329, UV-320) using appropriate analytical techniques.
- Leaching experiments to determine BUV migration into surrounding water.
- Ecological risk assessment based on BUV concentrations and ecotoxicity data.
Main Results
- BUVs were detected in various plastic debris types, with UV-P, UV-327, UV-326, and UV-328 prevalent in high-density polyethylene.
- UV-329 was dominant in PCPs, while UV-320 was not detected.
- FCMs exhibited the highest BUV concentrations (27787.98 ± 2304.14 ng/g), followed by PCPs (9115.49 ± 2891.18 ng/g) and household items (3215.03 ± 521.92 ng/g).
- Leaching experiments confirmed plastic debris as a mobile BUV source, indicating low to moderate ecological risk to planktons (RQ ≥ 0.1).
Conclusions
- Plastic debris, particularly FCMs and PCPs, acts as a significant source of BUVs in aquatic environments.
- The presence of BUVs in short-lived plastic products like FCMs and PCPs raises concerns about potential human health impacts.
- The widespread use of BUVs in everyday plastic items warrants re-evaluation due to environmental persistence and toxicity concerns.
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