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Benzotriazole UV stabilizers (BUVs) as an emerging contaminant of concern: a review

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Abstract

Benzotriazole UV stabilizers (BUVs) are a group of industrial chemicals used in various consumer products and industrial applications. Due to its large-scale production and use, BUVs have been detected in all environmental matrices. Humans are exposed to BUVs from environmental media, food, personal care products (PCPs), and consumer products. As a result, BUVs are detected in human breast milk, attracting researchers and regulatory bodies worldwide. BUVs such as UV-328 exhibit the characteristics of persistent organic pollutants (POPs); hence, it has been recently listed under Stockholm Convention POP list. The current review focuses on the occurrence of BUVs in the environment with emphasis on persistency, bioaccumulation, and toxicity (PBT). Scarcity of scientific data on BUVs’ properties, environmental occurrence, exposure levels, and effects on organisms poses significant challenges to the policymakers and regulatory bodies in adopting management strategies. The need for a science-based integrated framework for risk assessment and management of BUVs is recommended. Considering the potential threat of BUVs to human health and the environment, it is recommended that BUVs should be taken as a subject of priority research. Studies on the degradation and transformation route of BUVs need to be explored for the sound management of BUVs.

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Data availability

All the data referred in this paper have been extracted from peer-reviewed journals available in public domain.

Abbreviations

BAF:

Bioaccumulation factor

BCF:

Bioconcentration factor

BUVs:

Benzotriazole UV stabilizers

CAGR:

Compound annual growth rate

CoCAP:

Cooperative Chemical Assessment Program

DT50 :

Dissipation time half-life

dw:

Dry weight

EAWAG-BBD:

EAWAG Biocatalysis/Biodegradation Database

ECHA:

European Chemicals Agency

ESIPT:

Excited-state intramolecular proton transfer

GPx:

Glutathione peroxidase

HPV:

High production volume

IUPAC:

International Union of Pure and Applied Chemistry

K m :

Metabolic rate constant

K OC :

Organic carbon–water partition coefficient; it estimates the mobility of a substance in soil

K OW :

Octanol/water partition coefficient (log value), a relative indicator of the tendency of an organic compound to be adsorbed to soil and living organism

LC-MS/MS:

Liquid chromatography tandem mass spectrometry

LRT:

Long-range transport

lw:

Lipid weight

ND:

Not detected

OECD:

Organization for Economic Co-operation and Development

PBDEs:

Polybrominated diphenyl ethers

PBT:

Persistency, bioaccumulation, and toxicity

PCPs:

Personal care products

POPs:

Persistent organic pollutants

REACH:

Registration, Evaluation, Authorization, and Restriction of Chemicals

ROS:

Reactive oxygen species

SC:

Stockholm Convention

SPE:

Solid-phase extraction

SPIN:

Substances in Products in the Nordic countries

SVHC:

Substances of very high concern

TOFMS:

Time-of-flight mass spectrometry

UM-PPS:

University of Minnesota Pathway Prediction System

USA:

United Sates of America

USEPA:

United States Environmental Protection Agency

UV:

Ultraviolet

UV-320:

2-Benzotriazol-2-yl-4,6-di-tert-butylphenol, CAS 3846-71-7

UV-326:

2-tert-Butyl-6-(5-chlorobenzotriazol-2-yl)-4-methylphenol, CAS 3896-11-5

UV-327:

2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol, CAS 3864-99-1

UV-328:

2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol, CAS 25973-55-1

UV-329:

2-(Benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol, CAS 3147-75-9

UV-P:

Phenolic benzotriazole UV stabilizer, CAS 2440-22-4

ww:

Wet weight

WWTPs:

Wastewater treatment plants

w/w:

Weight by weight

∑:

Sum

References

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Acknowledgements

All the authors acknowledge Director, CSIR-NEERI, for granting permission to publish the paper. The authors thank the anonymous reviewers for their critical comments which helped to improve the manuscript.

Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript. Partial financial support was received from the Council of Scientific and Industrial Research (CSIR) to the first author in terms of monthly fellowship (31/0016(11375)/2021-EMR-I).

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Contributions

Conceptualization, data collection, and original drafting were done by A. K. Diagrammatic representation was done by P. J. Revision and editing were done by A. R. K. and A. N. V. All authors read, and approved the final manuscript.

Corresponding author

Correspondence to Asirvatham Ramesh Kumar.

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The authors declare no competing interests.

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Responsible Editor: Roland Peter Kallenborn

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Khare, ., Jadhao, P., Vaidya, A.N. et al. Benzotriazole UV stabilizers (BUVs) as an emerging contaminant of concern: a review. Environ Sci Pollut Res 30, 121370–121392 (2023). https://doi.org/10.1007/s11356-023-30567-9

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