Distribution, source apportionment and ecological risks of organophosphate esters in surface sediments from the Liao River, Northeast China

Luo, Qing; Gu, Leiyan; Wu, Zhongping; Shan, Yue; Hui, Wang; Sun, Lina

doi:10.1016/j.chemosphere.2020.126297

Cited by 61 publications

(23 citation statements)

References 60 publications

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“…For OPEs in the sediment, the concentration of total OPEs in surface sediments from the Liao River were relatively higher than the Taiwan Strait, the Bohai and Yellow Seas, and the Taihu lake [36,52,53]. For instance, the concentration of ∑ 13 OPEs ranged from 19.7 to 234 ng g −1 in the Liao River in northeast China, with a mean concentration of 64.2 ng g −1 [27]. Liao River was primarily polluted by TiBP, TBOEP, and TNBP.…”

Section: Water and Sedimentmentioning

confidence: 96%

“…To assess ecological risk, OPE concentrations in various environments have been evaluated in numerous studies. The risk quotient (RQ) method was used to assess the ecological risk of a chemical on aquatic organisms and ecotoxicological risks of residual OPEs in water, sediment, and soils [7,27,103]. The RQ was calculated using the following equation:…”

Section: Risk Assessmentmentioning

confidence: 99%

“…Nonchlorinated OPEs, including TMPP and TPHP, are used in hydraulic and engine oils as plasticizers [1,31]. TNBP, TiBP, TBOEP, and TEHP are added into antifoam agents, hydraulic fluids, and coatings [27]. 2-Ethylhexyl diphenyl phosphate (EHDPP) is used in food packaging and paints (Table 2) [27].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…TNBP, TiBP, TBOEP, and TEHP are added into antifoam agents, hydraulic fluids, and coatings [27]. 2-Ethylhexyl diphenyl phosphate (EHDPP) is used in food packaging and paints (Table 2) [27]. OPEs are extensively used in various commercial products, which leads to their release from plasticizers, materials, vehicles, and electronic waste (e-waste) recycling activities into the indoor and outdoor environments [20,32].…”

Section: Introductionmentioning

confidence: 99%

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Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Zhi-hui

Yin

Wen

et al. 2021

Toxics

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Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers. OPEs have been released into various environments (e.g., water, sediments, dust and air, and soil). To investigate the occurrence and distribution of OPEs in various environments in China, this review collects and discusses the published scientific studies in this field. Chlorinated OPEs, as flame retardants, are the predominant OPEs found in the environment. The analysis of data revealed large concentration variations among microenvironments, including inflowing river water (range: 0.69–10.62 µgL−1), sediments (range: 0.0197–0.234 µg/g), dust (range: 8.706–34.872 µg/g), and open recycling sites’ soil (range: 0.122–2.1 µg/g). Moreover, OPEs can be detected in the air and biota. We highlight the overall view regarding environmental levels of OPEs in different matrices as a starting point to monitor trends for China. The levels of OPEs in the water, sediment, dust, and air of China are still low. However, dust samples from electronic waste workshop sites were more contaminated. Human activities, pesticides, electronics, furniture, paint, plastics and textiles, and wastewater plants are the dominant sources of OPEs. Human exposure routes to OPEs mainly include dermal contact, dust ingestion, inhalation, and dietary intake. The low level of ecological risk and risk to human health indicated a limited threat from OPEs. Furthermore, current challenges and perspectives for future studies are prospected. A criteria inventory of OPEs reflecting the levels of OPEs contamination association among different microenvironments, emerging OPEs, and potential impact of OPEs on human health, particularly for children are needed in China for better investigation.

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Section: Water and Sedimentmentioning

confidence: 96%

Section: Risk Assessmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Zhi-hui

Yin

Wen

et al. 2021

Toxics

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Potentially Toxic Metals in Sediments from Liao River Estuary Wetland: Concentration, Source, and Risk Assessment

Wei

Luo

Gao

et al. 2022

CLEAN Soil Air Water

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In this study, a total of 26 surface sediments samples are collected from the Liao River estuary wetland, China. The concentration, potential ecological risk, and source apportionment of potentially toxic metals including Sr, Zn, Cr, Ni, Pb, Cu, and As in different seasons are analyzed. The average concentrations of potentially toxic metals are below the first class of Chinese marine sediment quality standard. There is no significant difference in the concentrations of potentially toxic metals in the sediments collected in June and November. The concentrations of potentially toxic metals in the periphery of the nature reserve are higher than those in the core area of the nature reserve. The average enrichment factors of As, Pb, Cu, Ni, Zn, and Cr are about 1, classified as minimal enrichment. The average enrichment factor of Sr is >2, which corresponds to moderate enrichment. The individual (E r ) and total potential ecological risks (RI) of potentially toxic metals are low. The positive matrix factorization model suggested that the potentially toxic metals in surface sediments in June are dominantly from atmospheric deposition, industrial discharges, natural sources, and traffic emission. However, the traffic emission source is replaced by agricultural production and metal smelting activities in November.

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Distribution Pattern of Organophosphate Esters in Particle-Size Fractions of Urban Topsoils Under Different Land-Use Types and Its Relationship to Organic Carbon Content

Luo

2020

Arch Environ Contam Toxicol

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Distribution, source apportionment and ecological risks of organophosphate esters in surface sediments from the Liao River, Northeast China

Cited by 61 publications

References 60 publications

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Organophosphate Esters in China: Fate, Occurrence, and Human Exposure

Potentially Toxic Metals in Sediments from Liao River Estuary Wetland: Concentration, Source, and Risk Assessment

Distribution Pattern of Organophosphate Esters in Particle-Size Fractions of Urban Topsoils Under Different Land-Use Types and Its Relationship to Organic Carbon Content

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