Emerging and legacy organophosphate flame retardants in the tropical estuarine food web: Do they exhibit similar bioaccumulation patterns, trophic partitioning and dietary exposure?

IF 7.2 2区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Water Research X Pub Date : 2024-12-10 eCollection Date: 2025-05-01 DOI:10.1016/j.wroa.2024.100294

Qianyi Huang, Rui Hou, Yuchen Wang, Lang Lin, Hengxiang Li, Shan Liu, Xiangrong Xu, Kefu Yu, Xiaoping Huang

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引用次数: 0

Abstract

Emerging organophosphate flame retardants (E-OPFRs) are a new class of pollutants that have attracted increasing attention, but their bioaccumulation patterns and trophodynamic behaviors in aquatic food webs still need to be validated by comparison with legacy OPFRs (L-OPFRs). In this study, we simultaneously investigated the bioaccumulation, trophic transfer, and dietary exposure of 8 E-OPFRs and 10 L-OPFRs in a tropical estuarine food web from Hainan Island, China. Notably, the Σ₁₀L-OPFRs concentration (16.1-1.18 × 10⁵ lipid weight (lw)) was significantly greater than that of Σ₈E-OPFRs (nondetectable (nd) - 2.82 × 10³ ng/g lw) among the investigated organisms, and they both exhibited similar trends: fishK _M) confirmed the role of biotransformation in offsetting trophic transfer for both legacy and emerging OPFRs. Furthermore, the hazard quotients (HQs) were found to be <1 for South China residents for both the E- and L-OPFRs, but the health risks of these two kinds of OPFRs should be given sustained attention.

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来源期刊

Water Research X Environmental Science-Water Science and Technology

CiteScore

12.30

自引率

1.30%

发文量

期刊介绍： Water Research X is a sister journal of Water Research, which follows a Gold Open Access model. It focuses on publishing concise, letter-style research papers, visionary perspectives and editorials, as well as mini-reviews on emerging topics. The Journal invites contributions from researchers worldwide on various aspects of the science and technology related to the human impact on the water cycle, water quality, and its global management.