Halogenated organic compounds in mangrove sediments from Bintan Island, Indonesia: Occurrence, profiles, sources, and potential ecological risk

IF 7.6 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Pollution Pub Date : 2025-01-09 DOI:10.1016/j.envpol.2025.125667

Dede Falahudin, Zainal Arifin, Deny Yogaswara, Edward Edward, Ita Wulandari, I Wayan Eka Dharmawan, Agus Sudaryanto, Anh Quoc Hoang, Shin Takahashi

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Abstract

The first comprehensive analysis of halogenated organic compounds (HOCs), including 209 full congeners of polychlorinated biphenyls (PCBs), 26 organochlorinated pesticides (OCPs), 41 polybrominated diphenyl ethers (PBDEs), and four other brominated flame retardants (BFRs), was performed on surface mangrove sediments from Bintan Island, Province of the Riau Archipelago, Indonesia. Among the measured HOC contaminants, the mean concentration of ∑₂₀₉PCBs (2.3±0.96 ng g⁻¹ dw) was higher than that of p,p’-DDE (1.8±0.70 ng g⁻¹ dw), ∑₄₁PBDEs (1.8±1.1 ng g⁻¹ dw), trans-nonachlor (0.42±0.13 ng g⁻¹ dw), and other BFRs (0.20±0.29 ng g⁻¹ dw), while other OCP related compounds less than 0.2 ng g⁻¹ dw. In addition, concentrations of unintentionally produced PCBs such as PCB-11 and PCB-47/48/75 ranged from 0.57−1.5 ng g⁻¹ dw. Variations in HOCs accumulation and profiles among mangrove habitats and species indicate different anthropogenic stressors and species-specific accumulations. The ecological risk estimation from HOCs exposure on dwelling sediment biota in mangrove sediments varied from no risk to potentially causing adverse effects in several locations. Overall, this study provides fundamental information on the function of mangrove ecosystems as an accumulation zone for HOCs in tropical regions.

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印尼民丹岛红树林沉积物中的卤化有机化合物：出现、分布、来源和潜在生态风险

对印度尼西亚廖内省民丹岛红树林表层沉积物进行了首次卤化有机化合物（HOCs）的综合分析，包括209种多氯联苯（PCBs）全同源物、26种有机氯农药（OCPs）、41种多溴联苯醚（PBDEs）和4种其他溴化阻燃剂（BFRs）。在实测的HOC污染物中，∑209pbbs的平均浓度（2.3±0.96 ng g−1 dw）高于p、p′-DDE（1.8±0.70 ng g−1 dw）、∑41PBDEs（1.8±1.1 ng g−1 dw）、反式壬胺（0.42±0.13 ng g−1 dw）和其他BFRs(0.20±0.29 ng g−1 dw)，而其他OCP相关化合物的平均浓度均小于0.2 ng g−1 dw。此外，无意中产生的多氯联苯如PCB-11和PCB-47/48/75的浓度范围为0.57−1.5 ng g−1 dw。红树林生境和物种间HOCs积累和分布的变化表明不同的人为压力源和物种特异性积累。对红树林沉积物中居住沉积物生物群的生态风险评估从无风险到可能造成不利影响不等。总的来说，本研究提供了热带地区红树林生态系统作为HOCs积累带功能的基本信息。

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来源期刊

Environmental Pollution 环境科学-环境科学

CiteScore

16.00

自引率

6.70%

发文量

2082

审稿时长

2.9 months

期刊介绍： Environmental Pollution is an international peer-reviewed journal that publishes high-quality research papers and review articles covering all aspects of environmental pollution and its impacts on ecosystems and human health. Subject areas include, but are not limited to: • Sources and occurrences of pollutants that are clearly defined and measured in environmental compartments, food and food-related items, and human bodies; • Interlinks between contaminant exposure and biological, ecological, and human health effects, including those of climate change; • Contaminants of emerging concerns (including but not limited to antibiotic resistant microorganisms or genes, microplastics/nanoplastics, electronic wastes, light, and noise) and/or their biological, ecological, or human health effects; • Laboratory and field studies on the remediation/mitigation of environmental pollution via new techniques and with clear links to biological, ecological, or human health effects; • Modeling of pollution processes, patterns, or trends that is of clear environmental and/or human health interest; • New techniques that measure and examine environmental occurrences, transport, behavior, and effects of pollutants within the environment or the laboratory, provided that they can be clearly used to address problems within regional or global environmental compartments.