Spatial variation and sources of polycyclic aromatic hydrocarbons (PAHs) in surface sediments from the Yangtze Estuary, China

Wang, Ying; Shen, Chanchan; Shen, Zhenyao; Zhang, Di; Crittenden, John C.

doi:10.1039/c5em00077g

Cited by 27 publications

(10 citation statements)

References 25 publications

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“…Principal component analysis–multiple linear regression (PCA–MLR) is a multivariate analytical tool used widely for receptor modeling in environmental source apportionment studies. ,− In this study, based on the determination of 15 priority PAHs from the SSW of the northern SCS and the ECS and YS, the sources of these PAHs in the spring, summer, autumn, and winter were quantitatively assessed by PCA–MLR. Each factor profile was then identified by comparing the source profiles from acknowledged references. ,− Detail discussion of the source identification of PCA were listed in the section 5 in the Supporting Information and Table S6. Contribution rates of different PAH sources by MLR in four seasons are listed in Table S7.…”

Section: Resultsmentioning

confidence: 99%

Seasonal Variation of Terrigenous Polycyclic Aromatic Hydrocarbons along the Marginal Seas of China: Input, Phase Partitioning, and Ocean-Current Transport

Wang

et al. 2017

Environ. Sci. Technol.

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To study the spatial distributions and seasonal differences of concentrations, source identification, and phase partitioning of polycyclic aromatic hydrocarbons (PAHs) in surface water, intensive sampling was carried out along the marginal seas of China in four seasons. In the northern South China Sea (SCS), the highest PAH levels occurred in the summer (July to August) and autumn (October to November). In the East China Sea (ECS) and the Yellow Sea, the highest occurred in the summer (August) and winter (December). In all areas, the lowest PAH levels were found in the spring (May to June). The estimated mass inventory of PAHs in the surface water (0-5 m) of the northern SCS and ECS accounted for less than 8% of PAHs outflow into the offshore environment. That showed the consistent seasonal variation with PAHs levels. Land- and ocean-based emissions, surface runoff, and the open seawater dilution were the most important environmental factors influencing the seasonal heterogeneity and the spatial distributions of PAH in the surface water. The decline of observed organic carbon normalized partition coefficients in the four seasons was probably affected by the presence of submicrometer-sized soot particles accompanying the PAH outflow from China.

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Section: Resultsmentioning

confidence: 99%

Seasonal Variation of Terrigenous Polycyclic Aromatic Hydrocarbons along the Marginal Seas of China: Input, Phase Partitioning, and Ocean-Current Transport

Wang

et al. 2017

Environ. Sci. Technol.

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“…With the extensive application of plastic products, PAEs are a significant emission and widespread in the air, water, soil, sediment, biological and other environmental media (Kranich et al, 2013;Kong et al, 2015;Paluselli et al, 2018). The study also found that coal combustion can also release PAEs (Wang et al, 2015a). Recent studies have indicated that PAEs are significant environmental pollutants with carcinogenic, teratogenic, and mutagenic effects.…”

Section: Introductionmentioning

confidence: 89%

“…Four seasons change in Xinjiang are obvious, the winter was very cold, and there was a heating period during the autumn, winter and spring, starting from October of the year to the end of next year April, for up to six months or more. The primary heating method in Changji relies on coal combustion and the coal-burning process can release PAEs to the environment (Wang et al, 2015a). During the winter, the low temperatures were not conducive to PAEs volatilizing from the soil.…”

Section: Seasonal Variation Of Paes and Its Influencing Factorsmentioning

confidence: 99%

Distribution characteristics and health risk assessment of PAEs in urban soils of Changji City, Xinjiang, China

2020

Global NEST: The International Journal

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<p>Recent studies have indicated that PAEs (phthalic acid esters) are significant environmental pollutants with carcinogenic, teratogenic, and mutagenic effects. Urban soils can act as both a source and sink for city contaminants. This paper takes Changji, Xinjiang in Northwest China as the study area and explores the pollution characteristics and health risks of PAEs in the urban soils of arid areas. The analysis results indicate average concentration occurrences of 13.77 mg/kg and ranges from 0.29 to 119.72 mg/kg in the study area. Dibutyl phthalate (DBP) and di-(2-ethylhexyl) phthalate (DEHP) were the predominant PAEs in the urban soil of Changji. The highest average PAEs concentration appeared in winter, followed by autumn and spring and the lowest in summer; the seasonal variation was significant. The climate characteristics of arid regions and seasonal variations of source emissions were the primary influencing factors. The theoretical values of the non-carcinogenic and carcinogenic risk of PAEs were relatively small, all within the acceptable range. Values of non-carcinogenic risk and carcinogenic risk to children were much higher than the risks to adults. Children were the vulnerable groups most at risk for harmful pollutants, and the safety of their living environment should be the focus of more attention.</p>

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“…BghiP and InP were considered to be derived from the emissions of gasoline and diesel engines combustion systems [52]. In general, Ana, Flua and Pyr could be designated as the important indicator of wood and coal combustion [53], which could be related to industrial emissions and local enterprise production activities. Based on the results, it was inferred that PC1 referred to the contribution of surrounding industrial pollution and traffic emissions to the import of PAHs.…”

Section: Principal Component Analysismentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons in Sediments from Typical Algae, Macrophyte Lake Bay and Adjoining River of Taihu Lake, China: Distribution, Sources, and Risk Assessment

Dong

Yan

et al. 2021

Water

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Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants in sediments and pose a serious risk for freshwater ecosystems. In this study, sediment samples from 24 sites were collected from the cyanobacterial bloom-occurring, macrophyte-growing lake bay and adjoining river of Taihu Lake. Here, the concentration levels, sources, and risk assessment of 16 priority PAHs in the surface sediments from typical algae, macrophyte lake bay and adjoining river of Taihu Lake, were investigated, and the results were compared with those of previous studies. The total PAH (ΣPAH) concentrations ranged from 4900 to 16,800 ng·g−1 in sediments of the Taihu Lake bay and from 5736.2 to 69,362.8 ng·g−1 in sediments of the adjoining river. The level of PAHs in riverine sediments was significantly higher than those of the Taihu Lake bay, and that of the Dongshan River was significantly higher than that of the Mashan River, while there was no significant difference in the concentrations of PAHs between the cyanobacterial bloom-occurring and macrophyte-growing lake zone. The results indicated petroleum contamination was dominated in the cyanobacterial bloom-occurring, macrophyte-growing lake bay, while PAHs of the riverine sediments derived from petroleum contamination and the combined combustion including wood, coal combustion, and petroleum combustion according to the identification by the molecular diagnostic ratio and principal component analysis (PCA). Sediment risk assessment based on sediment quality guidelines (SQGs) suggested that partial regions of the Taihu Lake bay were subjected to the potential ecological risk of the 3-ring and 5-ring PAHs, and there existed negative effects related to naphthalene pollutant in all survey regions. The adjoining riverine sediments showed a high ecological risk.

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Spatial variation and sources of polycyclic aromatic hydrocarbons (PAHs) in surface sediments from the Yangtze Estuary, China

Cited by 27 publications

References 25 publications

Seasonal Variation of Terrigenous Polycyclic Aromatic Hydrocarbons along the Marginal Seas of China: Input, Phase Partitioning, and Ocean-Current Transport

Seasonal Variation of Terrigenous Polycyclic Aromatic Hydrocarbons along the Marginal Seas of China: Input, Phase Partitioning, and Ocean-Current Transport

Distribution characteristics and health risk assessment of PAEs in urban soils of Changji City, Xinjiang, China

Polycyclic Aromatic Hydrocarbons in Sediments from Typical Algae, Macrophyte Lake Bay and Adjoining River of Taihu Lake, China: Distribution, Sources, and Risk Assessment

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