Determination of Polycyclic Aromatic Hydrocarbons and Trace Metals in New Orleans Soils and Sediments

Wang, Guangdi; Mielke, Howard W.; Quach, Van; Gonzales, Chris; Zhang, Qiang

doi:10.1080/10588330490445349

Cited by 69 publications

(59 citation statements)

References 29 publications

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“…They are mainly formed during the incomplete combustion of organic matter (pyrolitic sources) (Eisler, 1987;Baek et al, 1991) and during the slow maturation of the organic matter accumulated in deep sedimentary environments (petrogenic sources) (Wang et al, 2004). These two sources have distinct formation mechanisms that are realized with different kinetics.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, PAHs from pyrolitic processes are more strongly associated to sediments and much more resistant to microbial degradation than PAHs of petrogenic origin. PAHs may also be formed by micro-organisms from biogenic precursors such as di-and tri-terpenes, steroids, pigments or quinones in sediments or recent soils (Wakeham et al, 1980); these precursors may come from terrestrial or aquatic biological tissues (plants, animals, bacteria, macro-and micro-algae) (Wang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in a tropical coastal lagoon (Grand-Lahou lagoon, Côte d’Ivoire)

Kouakou¹,

Kouassi²,

Kwa-Foffi³

et al. 2015

Int. J. Bio. Chem. Sci

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The distribution of 8 polycyclic aromatic hydrocarbons (PAHs) in the surface sediments of the GrandLahou lagoon (Côte d'Ivoire) was investigated using a high performance liquid chromatography (HPLC). The total concentrations of PAHs were between 1.55 and 437.52 µg/g in the dry season. Pyrene, benzo (b) fluoranthene and fluoranthene have the highest concentrations. In the rainy season, the total PAHs concentrations varied between 46.35 and 1222.73 µg/g. Pyrene, benzo (a) pyrene and benzo (a) anthracene were the most present in the sediments of the lagoon of Grand-Lahou during the wet season. Possible sources of PAHs in the lagoon of Grand-Lahou are oil and fuel spills from ships and fishing boats, combustion of waste, domestic waste disposal and especially the production of charcoal on the Grand-Lahou lagoon shores. A clear dominance of high molecular weight (HMW) PAHs (pyrene, Benzo (k) fluoranthene, Benzo (a) pyrene, indeno (1,2,3-cd) pyrilène, Benzo (g, h, i) pyrilene, Benzo (a) anthracene , Benzo (b) fluoranthene) was observed compared to low molecular weight (LMW) PAHs (fluoranthene).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in a tropical coastal lagoon (Grand-Lahou lagoon, Côte d’Ivoire)

Kouakou¹,

Kouassi²,

Kwa-Foffi³

et al. 2015

Int. J. Bio. Chem. Sci

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“…PAH that bear no alkyl side chain or only methylpredominate in this temperature range [12][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

<b>Polycyclic aromatic hydrocarbons in municipal waste ashes from three waste dumps in lagos, Nigeria</b>

Amuda

Adelowo-Imeokparia

2007

Bull. Chem. Soc. Eth.

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“…For example, PAHs have been found as co-contaminants with metal/metalloids due to similar sources of contamination or materials and facilities used on the site. For examples, a strong correlation between metals (Pb, Cu, Zn) and PAHs in urban soils was obtained in previous studies, which can be attributed to automobile exhaust (Hwang and Cutright, 2002;Wang et al, 2004;Hofman et al, 2008;Morillo et al, 2008). Former gasworks sites were shown to be subjected to not only PAHs but also heavy metal contamination (Thavamani et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…For example, both Cd and Zn were released to the environment during metal (Zn) mining and smelting process since Cd sulfide co-occurs with the important Zn ore (Zn sulfide) (Grøn, 2003). On some occasions, organic compounds, such as PAHs were reported to exist as co-contaminants with metal/metalloids due to similar sources of contamination or materials and facilities used on the site (Hwang and Cutright, 2002;Wang et al, 2004;Thavamani et al, 2011). Without site-specific data, additive effects are usually assumed which may overestimate or underestimate the risk associated with mixed contaminants.…”

Section: Site Contaminationmentioning

confidence: 99%

Assessing exposure risk of arsenic, cadmium and lead (or mixed with PAHs) in soils using in-vitro methods

Xia¹

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There are over 150,000 contaminated sites in Australia. In most cases, soils are polluted with mixtures of contaminants, including metal/metalloids. However, current human health assessment, particularly in relation to health investigation level guidelines is based on single contaminant. If no site-specific data are available, additive effect is assumed which may overestimate or underestimate the risk. Therefore, a more detailed study on the mixture of metal/metalloids is needed. The emphasis of this study is laid on the exposure risk of arsenic (As), cadmium (Cd), and lead (Pb) when they are ingested as mixtures. Two in-vitro models are adopted in this study. Model 1 is the Unified BARGE (Bioaccessibility Research Group of Europe) method (which is known as UBM) with the aim to measure the soluble fraction of soil contaminants in the human gastrointestinal tract (bioaccessibility) as well as the interaction effects of As, Cd and Pb on respective bioaccessibility. Model 2 is using human liver carcinoma cell line (HepG2) to study the subsequent uptake of contaminants into cells in target organ and possible interaction of As, Cd and Pb on their respective uptake after they are solubilised in the human digestive system. Considering at some contaminated sites polycyclic aromatic hydrocarbons (PAHs) may co-exist with As, Cd and Pb, effects of four selected PAHs (NAP for naphthalene, PHE for phenanthrene, PYR for pyrene, and B[a]P for benzo[a]pyrene) on the bioaccessibility and subsequent uptake of As, Cd and Pb into HepG2 cells are also preliminarily investigated. The focus of this PhD study is on mixtures of As, Cd and Pb.Seven chemically-variant top soils (0-20 cm) were collected in Australia. Soils were characterised for pH, total carbon, total nitrogen, total sulphur, total organic carbon, total inorganic carbon, cation exchange capacity, oxalate-extractable iron, aluminium and manganese, particle size distribution, electrical conductivity etc. A range of concentrations of As, Cd and Pb was spiked into these seven types of soils and aged for up to 12 months. UBM results show the bioaccessibility of As in the gastric phase was not significantly different from those in the intestinal phase whilst a pronounced difference was observed between Cd gastric bioaccessibility and intestinal bioaccessibility as well as between Pb gastric bioaccessibility and intestinal bioaccessibility. Organic carbon, iron oxide and aluminium oxide were key parameters influencing the bioaccessibility of As (gastric and intestinal phases), Cd (intestinal phase) and Pb (intestinal phase).For mixture studies, two exposure scenarios were investigated. Under the first scenario, As, Cd and Pb were spiked to individual soils to mimic independent ageing of mixed 3 contaminants, such as contaminants age at different spots or there has been a long time gap between different contaminants entering the same spot. The interaction between binary mixtures of As, Cd and Pb in simulated human digestive system was studied by mixing soils spiked with A...

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Determination of Polycyclic Aromatic Hydrocarbons and Trace Metals in New Orleans Soils and Sediments

Cited by 69 publications

References 29 publications

Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in a tropical coastal lagoon (Grand-Lahou lagoon, Côte d’Ivoire)

Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in a tropical coastal lagoon (Grand-Lahou lagoon, Côte d’Ivoire)

<b>Polycyclic aromatic hydrocarbons in municipal waste ashes from three waste dumps in lagos, Nigeria</b>

Assessing exposure risk of arsenic, cadmium and lead (or mixed with PAHs) in soils using in-vitro methods

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