Speciation and source apportionment of polycyclic aromatic compounds (PACs) in sediments of the largest salt water lake of Australia

Idowu, Oluyoye; Carbery, Maddison; O’Connor, Wayne A.; Thavamani, Palanisami

doi:10.1016/j.chemosphere.2019.125779

Cited by 36 publications

(7 citation statements)

References 62 publications

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“…These tests were conducted to assess the PCA validity (shown in supporting information). The acceptable KMO value (> 0.5) and suitable significance of Bartlett's test ( p < 0.01) demonstrate that PCA results were valid (Idowu et al, 2020). Results of KMO and Bartlett's test were 0.66 and 0, respectively, indicating that the data were suitable for PCA analyses (Table S5) (shown in supporting information).…”

Section: Resultsmentioning

confidence: 99%

“…The results are unacceptable, sufficient, and good if the values found in the KMO test are below 0.5, between 0.5 and 0.7, and above 0.7, respectively. Briefly, the KMO tests (KMO > 0.5) and Bartlett sphericity tests ( p < 0.01) were performed to examine the validity of PCA outputs (Idowu et al, 2020). The PCA scree plot of the characteristics roots (eigen values) was used to illustrate the PC numbers to know structures of underlying data (Abayi et al, 2021; Thang et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

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Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Yao

Lin

et al. 2022

Water Environment Research

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The Feng‐Sang River is a metropolitan river in Kaohsiung City, Taiwan. In this study, Feng‐Sang River sediments were analyzed to investigate the distributions and sources of polycyclic aromatic hydrocarbons (PAHs). The Sediment Quality Guidelines (SQGs), potentially carcinogenic PAHs (TEQcarc), and toxic equivalence quotient (TEQ) were applied to evaluate influences of PAHs on ecosystems and microbial diversities. Results indicate that PAHs concentrations varied between seasons and locations. The concentrations of ∑16PAHs ranged from 73.6 to 603.8 ng/kg in dry seasons and from 2.3 to 199.3 ng/kg in wet seasons. This could be because of the flushing effect during wet seasons, which caused the movement and dilution of the PAH‐contaminated sediments. Diagnostic ratio analysis infers that high PAHs levels were generated by combustion processes and vehicle traffic, and results from multivariate descriptive statistical analysis also demonstrate that the vehicular traffic pollution could be the major emission source of PAHs contamination. Comparisons of PAHs with SQGs indicate that PAHs concentrations in sediment were below the effects range low (ERL) values, and thus, the immediate threat to organisms might not be significant. The diagnostic ratio analyses are effective methods for PAH source appointment. The metagenomic assay results imply that sediments contained essential microbial species with eminent diversity. The detected PAH‐degrading bacteria (Desulfatiglans, Dechloromonas, Sphingomonas, Methylobacterium, Rhodobacter, Clostridium, and Exiguobacterium) played a key role in PAHs biotransformation, and Dechloromonas and Rhodobacter had a higher relative abundance. Results of microbial diversity analyses indicate that the contaminated environment induced the changes of governing microbial groups in sediments. Practitioner Points Diagnostic ratio analyses are effective methods for PAHs source appointment. Microbial composition in sediments are highly affected by anthropogenic pollution. Combustion and vehicle traffic contribute to urban river sediments pollution by PAHs. Dechloromonas and Rhodobacter are dominant PAHs‐degrading bacteria in sediments.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Yao

Lin

et al. 2022

Water Environment Research

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“…For example, NPAHs and OH-PAHs in the Jiuxiang River in Nanjing at a concentration of 19.92 ng/g and 12.96 ng/g, respectively, while OPAHs had a concentration of 153.62 ng/g . NPAHs at concentrations of 58.7 ng/g in sediments from Australia’s largest Saline, compared to 518.9 ng/g in OPAHs . The concentration of OPAHs detected in the Taiwan Strait was 62.2 ng/g, and the most abundant of these is anthraquinone .…”

Section: Introductionmentioning

confidence: 98%

Influence of Exposure Pathways on Tissue Distribution and Health Impact of Polycyclic Aromatic Hydrocarbon Derivatives

et al. 2023

Environ. Health

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The oxygen (OPAHs), nitro (NPAHs), hydroxyl (OH-PAHs), and alkylated (APAHs) derivatives of polycyclic aromatic hydrocarbon (PAHs) are ubiquitous pollutants in the environment. The concentrations of NPAHs, OPAHs, OH-PAHs, and APAHs are lower than that of PAHs in the environment, but the carcinogenic abilities of the derivatives are usually 10 to 1,000-fold higher than that of parent PAHs. There are three main pathways for the exposure of polycyclic aromatic compounds to humans, including inhalation, direct contact, and ingestion. After exposure by inhalation, they are mainly distributed in the lungs, affecting lung function and causing inflammation, asthma, etc. Due to the digestive system’s strong capacity for metabolism, intake of PAHs and the derivatives is primarily distributed in the digestive system and metabolized there. And it may lead to dysplasia of these organs and even to cancer. The skin is the primary site of direct contact with PAH derivatives. PAH derivatives can enter the bloodstream through all three contact pathways, thereby accumulating in various organs. This study aimed to summarize the influence of exposure pathways on tissue distribution and the health impact of PAH derivatives to provide references for future research and evaluation on public health.

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“…These regulations include limits on the use and release of carcinogens, as well as guidelines for monitoring exposure levels in the workplace, in food and water, and in the environment. Polycyclic aromatic hydrocarbons (PAHs) are common carcinogens that are mainly generated by the incomplete combustion of fossil fuels, biosynthetic processes of plants, pyrolysis processes in crude oil refinement, plastic production, barbecuing, thermal power generation, and so on [ 1 , 2 , 3 ]. It has been demonstrated that PAHs and their derivatives have a strong link with various cancers and have teratogenic, mutagenic, and carcinogenic risks [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Detection of Acenaphthene and Naphthalene Using Functionalized Gold Nanoparticles

Chuang

Dong

Laishram

et al. 2023

IJMS

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Polycyclic aromatic hydrocarbons are a class of chemicals that occur naturally. They generally demonstrate a high degree of critical toxicity towards humans. Acenaphthene and naphthalene contain compounds that are commonly found in the environment as compared to other PAHs. Consequently, a reliable method of detecting PAHs is crucial for the monitoring of water quality. A colorimetric method based on sodium nitrite-functionalized gold nanoparticles was developed in this study for acenaphthene and naphthalene detection. Different functionalized parameters are determined for the optimization of assay conditions. A linear relationship was found in the analyte concentration range of 0.1–10 ppm with the limit of detection for acenaphthene and naphthalene being 0.046 ppm and 0.0015 ppm, respectively, under the optimized assay conditions. The method’s recovery rate for actual samples falls within the range of 98.4–103.0%. In selective and anti-interference tests, the presence of cations and anions has minimal impact on the detection of the analyte. The colorimetric detection method proposed in this study effectively determines the presence of the analyte in real water samples and has a high recovery rate.

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Speciation and source apportionment of polycyclic aromatic compounds (PACs) in sediments of the largest salt water lake of Australia

Cited by 36 publications

References 62 publications

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Influence of Exposure Pathways on Tissue Distribution and Health Impact of Polycyclic Aromatic Hydrocarbon Derivatives

Colorimetric Detection of Acenaphthene and Naphthalene Using Functionalized Gold Nanoparticles

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