Distributions, temporal trends and ecological risks of polyethylene terephthalate (PET) and di-(2-ethylhexyl) phthalate (DEHP) in sediments of Jiaozhou Bay, China

Xue, Likun; Han, Xue; Vogt, Rolf D.; Zhou, Jianyi; Zheng, Boyang; Song, Yutong; Lu, Xueqiang

doi:10.1016/j.marpolbul.2021.112176

Cited by 17 publications

(4 citation statements)

References 53 publications

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“…Important pollution changes between 1990 and 2020 were reported across different chronological studies in JZB. During this period, the last and highest increase of vanadium also correlated with significant changes in the bay, including accelerated heavy metal pollution and red tides, 19,20 TOC, TN, TP, 27 PCDD/Fs, PCBs, and PCNs, 44 plastic polymers, 46 and a reduction in diatoms and biogenic silica 47 (Table S4). Furthermore, the site of core Q23 has been under minor disturbance over time, with drastic land reclamation by 1986 owing to the attachment of Huang Island to the mainland and the establishment of chemical shipbuilding and oil industries.…”

Section: Temporal Changes Under Anthropogenic Impactsmentioning

confidence: 92%

Sediment Flux, Coastal Development, and Industrial Pressure Drive the Historical Vanadium Concentrations in the East China Sea and Two Bays of Shandong

Supe Tulcan,

Ouyang,

Guo

et al. 2023

ACS EST Water

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Vanadium is a versatile element gaining significant interest due to its distribution, concentrations, accumulation, and risks. Its historical evolution in bays with substantial human populations and industrial development that use vanadium-related products is essential to evaluate environmental pollution events and the pressure on natural ecosystems. Vanadium concentrations in four sediment cores from Jiaozhou Bay (JZB), Laizhou Bay (LZB), and the East China Sea (ECS) were analyzed using inductively coupled plasma optical emission spectrometry. Vanadium was higher in the open sea than in a semienclosed bay; the highest concentrations were found in the ECS (98.01–131.70 μg g–1), followed by LZB (66.35–104.33 μg g–1) and JZB (34.95–75.58 μg g–1). Vanadium concentrations in LZB and ECS showed drastic fluctuations and followed trends similar to those of sediment fluxes caused by anthropogenic activities and the natural courses of the two largest rivers in China, the Yangtze River and the Yellow River. Despite higher concentrations of vanadium in the ECS and LZB, the pollution indices indicated uncontaminated to low-contaminated habitats. Conversely, vanadium concentrations in the JZB illustrate the significant impacts of industries and coastal development, principally after the 1980s. Likewise, the high enrichment and pollution indices suggest that vanadium emission, migration, and circulation of JZB occur at concentrations beyond its natural threshold..

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Section: Temporal Changes Under Anthropogenic Impactsmentioning

confidence: 92%

Sediment Flux, Coastal Development, and Industrial Pressure Drive the Historical Vanadium Concentrations in the East China Sea and Two Bays of Shandong

Supe Tulcan,

Ouyang,

Guo

et al. 2023

ACS EST Water

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“…Di(2‐ethylhexyl) phthalate (DEHP) is a component of plastics and pollutes the environment with the degradation of plastics, and it is also an endocrine disruptor. Concentrations of DEHP in surface and core sediments from the Jiaozhou Bay are studied to range 0–591.2 μg/kg and are increasing over time 4 . The pollution of DEHP is very serious in the offshore and lagoon waters in the Bizerte area, based on this pollution, DEHP have changed phytoplankton biomass and structures 5 .…”

Section: Introductionmentioning

confidence: 99%

“…Concentrations of DEHP in surface and core sediments from the Jiaozhou Bay are studied to range 0-591.2 μg/kg and are increasing over time. 4 The pollution of DEHP is very serious in the offshore and lagoon waters in the Bizerte area, based on this pollution, DEHP have changed phytoplankton biomass and structures. 5 Study has calculated retrospective and prospective scenarios of past and future emissions of DEHP in the environment (water, soil, air) in Europe, showing that DEHP remains a major cause of environmental pollution even decades after its use has ceased.…”

Section: Introductionmentioning

confidence: 99%

Di(2‐ethylhexyl) phthalate and microplastics cause necroptosis and apoptosis in hepatocytes of mice by inducing oxidative stress

Chen

Zhang

et al. 2023

Environmental Toxicology

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Di(2‐ethylhexyl) phthalate (DEHP) is a plasticizer and an endocrine disruptor. Microplastics (MPs) are pathogenic small plastic particles and abundant in the aqueous environment. The problem of residual hazards of plastic products is worthy of study, especially the joint exposure of a variety of plastic‐related products to the toxic effect. We used 200 mg/kg DEHP and 10 mg/L MPs to establish exposure model in vivo and 2 mM DEHP and 200 μg/L MPs to establish AML12 cell exposure model in vitro. In vivo study results showed that compared with the control group (NC) group, DEHP and MPs significantly increased the contents of malondialdehyde and hydrogen peroxide, and significantly decreased the contents of glutathione and the activity of superoxide dismutase, total antioxidant capacity, catalase and glutathione peroxidase. The level of oxidative stress was further aggravated after combined exposure. The reactive oxygen species level of AML12 exposed to DEHP and MPs in vitro was significantly higher than NC group, and the combined exposure was significantly higher than the single exposure. The in vivo and in vitro also confirmed that DEHP and MPs could significantly increase the mRNA and protein levels of apoptosis markers and necroptosis markers and there was an additive effect. After N‐acetylcysteine treatment in vitro, the above‐mentioned oxidative stress level and cell damage decreased significantly. This study provided a reference for advocating the reduction of the mixed use of plastic products, and provided a basis for preventing the harm of plastic products residues.

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“…As a plasticizer, di-(2-ethylhexyl)phthalate (DEHP) is frequently used in plastic products to make them more flexible, and a billion tons of plastic products are used annually in the food, clothing, housing, and transportation industries. − DEHP, a fat-soluble compound, could be released easily into the environment due to its noncovalent connections with plastics. , DEHP exists ubiquitously in soil, water, and air. , The detected concentrations of DEHP in the Yangtze River, Yellow River, Hai River, Huai River, Songhua River, Liao River, and Pearl River ranged from 0.1 to 13050.8 μg/L . The observed indoor concentrations of DEHP in Xi’an and Hangzhou, China, were 1510 and 1125 ng/m 3 , respectively .…”

Section: Introductionmentioning

confidence: 99%

MicroRNA-375 Mediated Regulation on Pre-mRNA Processing Factor 3 in Zebrafish Embryos Exposed to Di-(2-ethylhexyl)phthalate at Low Concentrations

Huang

Gong

et al. 2022

Chem. Res. Toxicol.

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phthalate (DEHP) is an endocrinedisrupting chemical (EDC) that induces epigenetic alterations, apoptosis, and oxidative stress after biological exposure. MicroRNAs (miRNAs) are a class of small noncoding RNAs with many regulatory functions and play a role in organisms exposed to environmental chemicals. miRNA-mRNA prediction indicated that pre-mRNA processing factor 3 (PRPF3) is a likely target mRNA for miR-375 whose expression is altered by DEHP exposure. However, the interrelation between miR-375 and PRPF3 has not yet been confirmed experimentally. This study aimed to investigate the effects of DEHP on miR-375 and PRPF3 in zebrafish. The expression of miR-375 was downregulated, whereas PRPF3 was upregulated at both transcriptional and post-transcriptional levels upon stimulation with DEHP. The interaction between miR-375 and the 3′-untranslated region (3′-UTR) of PRPF3 was confirmed by a dual fluorescent protein assay and a dual luciferase reporter gene assay. The expression of PRPF3 at both transcriptional and post-transcriptional levels was reduced in ZF4 cells when transfected with a miR-375 mimic but increased when transfected with a miR-375 inhibitor. The results improved our understanding of molecular mechanisms of toxicity upon DEHP exposure and presented miR-375 as a potential novel toxicological biomarker for chemical exposure.

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Distributions, temporal trends and ecological risks of polyethylene terephthalate (PET) and di-(2-ethylhexyl) phthalate (DEHP) in sediments of Jiaozhou Bay, China

Cited by 17 publications

References 53 publications

Sediment Flux, Coastal Development, and Industrial Pressure Drive the Historical Vanadium Concentrations in the East China Sea and Two Bays of Shandong

Sediment Flux, Coastal Development, and Industrial Pressure Drive the Historical Vanadium Concentrations in the East China Sea and Two Bays of Shandong

Di(2‐ethylhexyl) phthalate and microplastics cause necroptosis and apoptosis in hepatocytes of mice by inducing oxidative stress

MicroRNA-375 Mediated Regulation on Pre-mRNA Processing Factor 3 in Zebrafish Embryos Exposed to Di-(2-ethylhexyl)phthalate at Low Concentrations

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