Modeling and evaluating spatial variation of polycyclic aromatic hydrocarbons in urban lake surface sediments in Shanghai

Yang, Jing; Yang, Yi; Chen, Ruishan; Meng, Xiang−Zhou; Xu, Jie; Qadeer, Abdul; Liu, Min

doi:10.1016/j.envpol.2017.12.032

Cited by 47 publications

(23 citation statements)

References 58 publications

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“…This point was demonstrated using mass fractions analysis and is further supported by simply comparing PAH concentrations from the present study with concentrations in areas where coal‐tar sealants are not used (i.e., outside of the eastern and central United States and Canada). Compared with a ΣPAH 16 mean of 13 300 µg/kg and maximum of 196 000 µg/kg for the present study, studies of urban streams, canals, drains, and lakes in Portland (OR, USA; Yanagida et al 2012), Sydney (Australia; Nguyen et al 2014), Delhi (India; Kumar et al 2016), Beijing (China; Shen et al 2009), Shanghai (China; Yang et al 2018), and Bangkok (Thailand; Boonyatumanond et al 2006) reported mean ΣPAH 16+ concentrations of 663 to 5570 µg/kg (Figure 9). The maximum ΣPAH 16+ concentrations in these studies were all <9000 µg/kg, with the exception of Delhi storm drain sediments, which had a maximum of 19 300 µg/kg.…”

Section: Discussionmentioning

confidence: 65%

Primary Sources of Polycyclic Aromatic Hydrocarbons to Streambed Sediment in Great Lakes Tributaries Using Multiple Lines of Evidence

Baldwin

Corsi

Oliver

et al. 2020

Enviro Toxic and Chemistry

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Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread and potentially toxic contaminants in Great Lakes (USA/Canada) tributaries. The sources of PAHs are numerous and diverse, and identifying the primary source(s) can be difficult. The present study used multiple lines of evidence to determine the likely sources of PAHs to surficial streambed sediments at 71 locations across 26 Great Lakes Basin watersheds. Profile correlations, principal component analysis, positive matrix factorization source‐receptor modeling, and mass fractions analysis were used to identify potential PAH sources, and land‐use analysis was used to relate streambed sediment PAH concentrations to different land uses. Based on the common conclusion of these analyses, coal‐tar–sealed pavement was the most likely source of PAHs to the majority of the locations sampled. The potential PAH‐related toxicity of streambed sediments to aquatic organisms was assessed by comparison of concentrations with sediment quality guidelines. The sum concentration of 16 US Environmental Protection Agency priority pollutant PAHs was 7.4–196 000 µg/kg, and the median was 2600 µg/kg. The threshold effect concentration was exceeded at 62% of sampling locations, and the probable effect concentration or the equilibrium partitioning sediment benchmark was exceeded at 41% of sampling locations. These results have important implications for watershed managers tasked with protecting and remediating aquatic habitats in the Great Lakes Basin. Environ Toxicol Chem 2020;39:1392–1408. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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Section: Discussionmentioning

confidence: 65%

Primary Sources of Polycyclic Aromatic Hydrocarbons to Streambed Sediment in Great Lakes Tributaries Using Multiple Lines of Evidence

Baldwin

Corsi

Oliver

et al. 2020

Enviro Toxic and Chemistry

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“…; Yang et al . ). However, dietary intake of PAHs is the major route of human exposure for nonsmokers and nonoccupational individuals.…”

Section: Introductionmentioning

confidence: 97%

“…More than 100 different PAHs have been identified, however, among these, 16 PAHs have been listed by the US Environmental Protection Agency (EPA) as the major pollutants of food sources (Wenzl et al 2006). Human can be exposed to PAHs through ingestion, inhalation and skin contact (Purcaro et al 2013;Yang et al 2018). However, dietary intake of PAHs is the major route of human exposure for nonsmokers and nonoccupational individuals.…”

Section: Introductionmentioning

confidence: 99%

In vitroremoval of polycyclic aromatic hydrocarbons by lactic acid bacteria

et al. 2019

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Aims The current study aimed to investigate the ability of lactic acid bacteria (LABs) in removing four polycyclic aromatic hydrocarbons (PAHs) namely, benzo(a)pyrene (BaP), benz(a)anthracene (BaA), chrysene (Chr) and benzo(b)fluoranthene (BbF) from contaminated phosphate buffer saline (PBS). Method and Results The effect of initial PAH concentrations (5, 10, 15, 20 μg ml−1), bacterial population (107, 108, 109, 1010 CFU per ml) and pH (3, 5, 7) was studied to evaluate bacterial binding ability. All the tested bacteria could remove BaA, Chr, BbF and BaP from phosphate buffer solution and in almost all assays, removing of PAHs was as follows: BaP>Chr>BaA>BaF. Bifidobacterium lactis BB‐12 had the lowest binding rate for all four PAHs, while the highest binding ability was related to Lactobacillus acidophilus LA‐5. Moreover, cell viability was not required for the binding ability and even acid‐treated, heat‐treated and ultrasonic‐treated bacterial cells showed more binding ability. The results showed that the bacteria–PAH complex was irreversible after washing with PBS. Conclusions The removal of PAHs was significantly related to pH of media, strains of bacteria, type and concentration of PAHs Significance and Impact of the Study This study has been focused on the reduction of polycyclic aromatic hydrocarbons using LABs and probiotics. Our results showed that not only live strains but also inactivated tested strains are able to remove PAHs from aqueous media, presenting new methods to diminish the amount of these contaminants in foods. Furthermore, the results of this study can be used in future research on evaluating the effects of oral administration of probiotic supplements and even dead probiotic strains on reducing PAHs in humans.

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“…4), there are four peaks in the grain-size standard deviation curve, which are sensitively influenced by the sedimentary environments. The three boundaries for the sub-populations of Bosten Lake sediments were Factor analysis is generally used to determine source apportionments and to identify environmental influencing factors in limnological studies [43][44][45] . As shown in Table 1, four factors explain 94.6% of the total variance.…”

Section: Resultsmentioning

confidence: 99%

Environmentally sensitive grain-size component records and its response to climatic and anthropogenic influences in Bosten Lake region, China

Abuduwaili

2020

Sci Rep

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Using 137 cs and 210 Pb dating and multi-proxy evidence from a 41-cm sediment core from Bosten Lake in China, the responses of sediment grain size to environmental changes were reconstructed over the past 150 years. After the end of the Little Ice Age, the climate of the Bosten Lake region became warmer and drier, and the lake water level decreased. The results indicated that the lowest water storage periods occurred at approximately 1920-1930 AD. Decreases in the Siberian High intensity and water vapour transport from the Indian Ocean during this period led to a reduction in the water vapour supply, which resulted in reduced lake levels in the period 1920-1930 AD. Then, the lake was at a high level until the 1960s. The water storage then declined in the 1960s. Since the 1960s, the contents of total organic carbon and total nitrogen have significantly decreased, which is closely related to the significant decline in water level and increased water salinity caused by enhanced water demands. Increased irrigation water demand as a result of expanding cultivated areas and climate change, coupled with a reduced input of water vapour, resulted in the worst water environment in approximately 1980-1990 AD. Since the late 1980s, the water level of the lake has risen, and the lake primary productivity of Bosten Lake has improved. Through the application of statistical methods to grain size data from Bosten Lake combined with the abovementioned data on climate change and human activities, two major potential factors influencing the grain size of terrigenous clastic material were revealed. The first factor, consistent with a grain size of 3.31 μm, is related to the recent increase in agricultural acreage in the Bosten Lake watershed and may reflect increases in atmospheric dust. The second factor, correlated with grain sizes of 11.48 μm and 69.18 μm, can be used to reflect changes in the lake hydrological state. It is suggested that the grain sizes of these lake sediments sensitively reflect changes in the hydrological characteristics of the basin and can be used to reconstruct the history of climate change and human activities. Lake sediments record the history of human-environment interactions 1 and have been used to reconstruct the environmental evolution on different time scales and to assess the impacts of human activities 2. Among the multiple proxies derived from lake sediments, the grain-size distribution has been widely used to reconstruct environmental histories 3-7. Variations in sedimentary environments are reflected by polymodal grain-size distributions, which represent changes in transport and depositional processes 8,9. Weibull 8 and unimodal lognormal distributions 10 , end-member mixing analysis 11,12 , and standard deviation variations 13 have been used to obtain environmental grain-size compositions and to distinguish sediment sources. Lakes in arid regions play significant roles in maintaining regional ecosystems. Deteriorations in water quality and quantity can threaten the livelihoods of local people an...

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Modeling and evaluating spatial variation of polycyclic aromatic hydrocarbons in urban lake surface sediments in Shanghai

Cited by 47 publications

References 58 publications

Primary Sources of Polycyclic Aromatic Hydrocarbons to Streambed Sediment in Great Lakes Tributaries Using Multiple Lines of Evidence

Primary Sources of Polycyclic Aromatic Hydrocarbons to Streambed Sediment in Great Lakes Tributaries Using Multiple Lines of Evidence

In vitroremoval of polycyclic aromatic hydrocarbons by lactic acid bacteria

Environmentally sensitive grain-size component records and its response to climatic and anthropogenic influences in Bosten Lake region, China

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