PAHs and metals in the soils of inner-city and suburban New Orleans, Louisiana, USA

Mielke, Howard W.; Wang, Guangdi; Gonzales, Christopher R.; Powell, Eric T.; Le, B.; Quach, Van

doi:10.1016/j.etap.2003.11.011

Cited by 144 publications

(79 citation statements)

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“…This was higher than that in some developed regions in China (Fig. 2c), such as in the Shantou economic development zone (317 ng/g) (Hao et al, 2004), Hong Kong (443 ng/g) (Chung et al, 2007), and the Xuzhou urban area (27 ng/g) (Ge et al, 2008), while lower than that in Beijing urban soils (1637 ng/g) (Li et al, 2006), Dalian surface soils (1738 ng/g) (Wang et al, 2007), France surface soils (2510 ng/g) (Motelay-Massei et al, 2004), and the soils of a suburban district in the USA (527-3753 ng/g) (Mielke et al, 2004). Furthermore, according to the standard proposed by Maliszewska-Kordybach (1996), only 7.6% of the soil samples can be considered unpolluted (< 200 ng/g), 45.7% as slightly polluted (200-600 ng/g), 22.9% as moderately polluted (600-1000 ng/g), and 23.8% as severely polluted by PAHs (> 1000 ng/g).…”

Section: Concentrations Of Ocps and Pahs In The Bhnamentioning

confidence: 99%

Environmental pollution by persistent toxic substances and health risk in an industrial area of China

Lü

Shi

et al. 2011

Journal of Environmental Sciences

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Soil is an important environmental medium that is closely associated with humans and their health. Despite this, very few studies have measured toxicants in soils, and associated them with health risks in humans. An assessment of health effects from exposure to contaminants in soils surrounding industrial areas of chemical production and storage is important. This article aims at determining pollution characteristics of persistent toxic substances (PTS) in an industrial area in China to unravel the relationship between soil pollution by PTS and human health. One hundred and five soil samples were collected and 742 questionnaires were handed out to residents living in and around an industrial area around Bohai Bay, Tianjin in Northern China. Concentrations of organochlorine pesticides and polycyclic aromatic hydrocarbons (PAHs) were determined in soil. Mann-Whitney U and binary multivariate nonconditional logistic regression models were employed to analyze the relationship between health indicators of local residents and contaminant levels. Odds ratio (OR) and a 95% confidence interval (CI) for health incidences were also calculated. The average concentrations of DDT (73.9 ng/g), HCH (654 ng/g) and PAHs (1225 ng/g) were relatively high in the industrial area. Residents living in the chemical industry parks were exposed to a higher levels of PTS than those living outside the chemical industry parks. This exposure was associated with a higher risk of breast cancer (OR 1.87, 95% CI 0.12-30.06), stomach cancer (OR 1.87, 95% CI 0.26-13.41), dermatitis (OR 1.72, 95% CI 1.05-2.80), gastroenteritis (OR 1.59, 95% CI 0.94-2.68), and pneumonia (OR 1.05, 95% CI 0.58-1.89).

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Section: Concentrations Of Ocps and Pahs In The Bhnamentioning

confidence: 99%

Environmental pollution by persistent toxic substances and health risk in an industrial area of China

Lü

Shi

et al. 2011

Journal of Environmental Sciences

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“…In the present study, consortium culture (CC) with metal-resistant characteristic (Sannasi et al 2009) will be tested under different salinity, artificial seawater and seawater to degrade crude oil hydrocarbon since crude oil contamination sites are frequently co-contaminated by heavy metals as well (Mielke et al 2004). Of the nine isolates identified using Biolog system, Pseudomonas, Flavobacterium (Ko and Lebeault 1999), Serratia (Fellie et al 2012) and Brevundimonas have been reported to successfully degrade hydrocarbon compounds such as benzene, toluene, naphthalene, decalin and phenol (Tumaǐkina et al 2008), and Alcaligenes (Wentzel et al 2007) was shown to degrade hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Self-immobilised bacterial consortium culture as ready-to-use seed for crude oil bioremediation under various saline conditions and seawater

Kee

Hazaimeh

Mutalib

et al. 2014

Int. J. Environ. Sci. Technol.

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Biodegradation of crude oil hydrocarbon by microorganisms in seawater is generally slow because of the harsh environmental condition due to high salinity. The aim of this study was to compare sawdust (SD) and oil palm empty fruit bunch wastes as suitable carrier material to immobilise hydrocarbon-degrading bacterial consortium culture to accelerate and improve crude oil degradation in seawater. The consortium culture was found able to tolerate salinity up to 3 %, where the degradation of crude oil was not inhibited (p [ 0.05). In artificial seawater, suspension of bacterial consortium culture was able to degrade 83.3 ± 3.00 % of crude oil within 8 weeks, which indicated the possibility of using consortium culture in seawater. When tested in seawater, suspension of consortium culture managed to degrade 47.7 ± 1.53 % of crude oil in 8 weeks. In order to improve the performance of consortium culture, immobilisation of consortium culture onto SD and oil palm empty fruit bunch was successfully undertaken when formation of biofilm layers was observed under scanning electron microscope. Immobilising consortium culture onto oil palm empty fruit bunch and SD was shown to increase crude oil biodegradation to 68.7 ± 4.04 and 62.3 ± 5.51 % in 8 weeks, respectively. This study demonstrated immobilisation of consortium culture onto SD and oil palm empty fruit bunch can be utilised as ready-touse seeds to improve and accelerate crude oil biodegradation in seawater.

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“…Frequent exploration of natural resources, industrial activities, transport, energy demand and increase in population results in persistent release of organic contaminants into the soil environment [2][3][4]. In particular, PAHs gain contact with soils and are subject to volatilisation, biodegradation, photodegradation and physical transport [10,19].…”

Section: Discussionmentioning

confidence: 99%

“…Contaminated land tends to contain complex mixtures of both organic and/or inorganic contaminants [2,3,125,126]. The presence of co-contaminants may affect the sorption, desorption, bioaccessibility and biodegradation of the target compound.…”

Section: Sorption Of Organic Contaminantsmentioning

confidence: 99%

“…Furthermore, it supports populations of microorganisms and other biota that are involved in the cycling of essential elements and nutrients; it also encourages the processing and sequestration of organic carbon. However, the persistent OPEN ACCESS exploration and exploitation of mineral and hydrocarbon resources, inappropriate agrochemical use, uncontrolled combustion, as well as increases in population and urbanisation have led to the introduction or displacement of chemicals into the soil environment [2][3][4]. The environment can become polluted with organic and inorganic chemicals as a result of intended, accidental or naturally occurring events such as manufacturing processes, mineral extraction, poor environmental management and waste disposal activities, application of fertilizer, illegal dumping of wastes, leaking underground storage tanks, abandonment of mines and other industrial activities [1].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Ogbonnaya

Semple

2013

Agronomy

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Abstract:The presence of biochar in soils through natural processes (forest fires, bush burning) or through application to soil (agriculture, carbon storage, remediation, waste management) has received a significant amount of scientific and regulatory attention. Biochar alters soil properties, encourages microbial activity and enhances sorption of inorganic and organic compounds, but this strongly depends on the feedstock and production process of biochar. This review considers biochar sources, the production process and result of pyrolysis, interactions of biochar with soil, and associated biota. Furthermore, the paper focuses on the interactions between biochar and common anthropogenic organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), pesticides, and dioxins, which are often deposited in the soil environment. It then considers the feasibility of applying biochar in remediation technologies in addition to other perspective areas yet to be explored.

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PAHs and metals in the soils of inner-city and suburban New Orleans, Louisiana, USA

Cited by 144 publications

References 10 publications

Environmental pollution by persistent toxic substances and health risk in an industrial area of China

Environmental pollution by persistent toxic substances and health risk in an industrial area of China

Self-immobilised bacterial consortium culture as ready-to-use seed for crude oil bioremediation under various saline conditions and seawater

Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

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