Potential Toxicity Risk Assessment and Priority Control Strategy for PAHs Metabolism and Transformation Behaviors in the Environment

Zhao, Lei; Zhou, Mengying; Zhao, Yuanyuan; Yang, Junru; Pu, Qikun; Yang, Hao; Yang, Wu; Lyu, Cong; Li, Yu

doi:10.3390/ijerph191710972

Cited by 10 publications

(4 citation statements)

References 135 publications

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“…These strategies were carried out by harnessing the ability of microorganisms, mainly bacteria. Those microorganisms will break down the organic pollutants into harmless metabolites or mineralise the pollutants into carbon dioxide and water (Zhao et al, 2022). This technique is the most preferred to remediate the environment as it rarely leaves harmful traces after cleaning up.…”

Section: The Clean-up Of Environmental Contaminantsmentioning

confidence: 99%

Environmental Approach for Securing Halalan Toyyiban Concept in Food Safety- A Mini Review

Ahmad¹,

Nordin²

2023

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The relationship between Halalan Toyyiban concept and food safety is well known and discussed among the scholars since the early years. Muslims are guided by the concept that is highlighted in the Quran to consume food. However, the widely occurred environmental pollution and contamination around the globe had threatened the status of the natural food resources. One of the major threats to global food safety is chemical contamination from environment. By harnessing the ability of the microorganism in the environment to restore the nature is one of the approaches used to ensure the concept of toyyiban is safely fulfilled. Using the Qur’an as primary sources and other published articles, this article connects the links between the wider halalan toyyiban concept and the environmental sciences related approaches and subsequently provides alternative perspective to the halalan toyyiban concept especially for the food safety issues.

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Section: The Clean-up Of Environmental Contaminantsmentioning

confidence: 99%

Environmental Approach for Securing Halalan Toyyiban Concept in Food Safety- A Mini Review

Ahmad¹,

Nordin²

2023

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“…Flu, Phe, and Ant are all highly dependent on coal combustion. Flua and Pyr have always been considered indicators of incomplete coal combustion [44,45], which is a significant feature of using coal-fired boilers for daily life, such as heating, bathing, and cooking. Moreover, Chr, BbF, BkF, and BaP are derived from natural gas combustion, while wood combustion will produce BaA and BPE [9,38,46,47].…”

Section: Health Risk Assessmentmentioning

confidence: 99%

Types and Source Apportionment of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil-Groundwater of a Closed Coking Plant in Shanxi Province, China

Li,

Feng,

Dang

et al. 2023

Water

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To clarify the impact of coking industry activities on the soil-groundwater Polycyclic aromatic hydrocarbon (PAH) occurrence, a typical coking site in Shanxi Province was taken as the study area, and soil and groundwater samples were collected to analyze the pollution level, composition, and distribution of PAHs in soil-groundwater. The sources of PAHs in the study area were identified based on the positive matrix decomposition model (PMF); the health risks of PAHs were calculated based on the carcinogenic and non-carcinogenic health risk model from the Technical Guidelines for Risk Assessment of Soil Pollution for Construction Land (HJ 25.3-2019) and toxicity equivalent quantity (TEQ). The results showed that ∑PAHs of soil ranged from 0 to 6077.7 mg/kg, with an average value of 198.02 mg/kg; ∑PAHs of groundwater ranged from 0 to 18.30 mg/L, with an average value of 9.39 mg/L. In horizontal distribution, ∑PAH content and types in the tar processing area were much higher than those in the surrounding area, and PAHs might migrate to the southwest through infiltration; in vertical distribution, ∑PAH content reached a peak at 5 m underground. According to the PMF model results, four primary sources of ∑PAHs were identified, which were the coking production source (55.0%), coal and petroleum combustion source (22.6%), atmospheric deposition source (13.1%) and residents living source (9.3%). The total average ∑PAH carcinogenic and non-carcinogenic health risks of soil in the study area were 7.05 × 10−6 and 0.695; the average TEQBaP−∑PAHs was 1.650 mg·TEQ/g; as for groundwater, they were 3.08 × 10−6 and 32.04; the average TEQBaP−∑PAHs was 9.390 μg·TEQ/L, indicating that PAHs both in soil and groundwater had potential health risks. This study provides a basis for the same coking site type for pollution control, secondary utilization, and data support for future site restoration.

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“…One of the biggest concerns is the occurrence of organic contaminants that are found to be highly persistent in the environment and have destructive biological effects on humans and animals (Baran et al, 2020;Baran et al, 2021;Eskenazi et al, 2018). Amongst the harmful organic contaminants are Chlorinated Hydrocarbons (CHs) found in the atmosphere and hydrosphere recently (Haedrich et al, 2020;Zhao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Dibenzofuran Degradation by Bacterial Community in Landfill Leachate

Ahmad,

Hadry Nordin,

Abdullah Sani

et al. 2023

JST

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The contamination of the environment has been a global issue, and bioremediation is proposed as an option to clean up the contamination sites with the promising utilization of bacterial community capabilities. The indigenous bacterial community in the landfill leachate is recognized to carry enzymes for the degradation of contaminants such as dioxin congeners, the dibenzofuran. Environmental factors have been known to influence the process to achieve successful biodegradation, and the optimized conditions may speed up the biodegradation process. Thus, this study was conducted to optimize the substrate availability, temperature, and pH factor for the degradation of dibenzofuran from landfill leachate by the native bacterial community in landfill leachate. This study uses the one-factor at-time (OFAT) approach to measure dibenzofuran degradation. The landfill leachate with enrichment of dibenzofuran (15 to 45 mg L-1) was incubated at temperatures (30°C to 42°C) and pH (5 to 9) for 24 hours before being extracted and analyzed. From the first part of the study, 15 mg L-1 of dibenzofuran, 30°C temperature, and pH 7 have shown the highest dibenzofuran degradation. Later, the optimum condition of dibenzofuran removal (74.40%) was achieved when the landfill leachate was spiked with 15 ppm dibenzofuran at 30°C and pH 7 for 24 hours. This study proposes optimized conditions that give a better result for dibenzofuran degradation, which may enhance bioremediation.

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Potential Toxicity Risk Assessment and Priority Control Strategy for PAHs Metabolism and Transformation Behaviors in the Environment

Cited by 10 publications

References 135 publications

Environmental Approach for Securing Halalan Toyyiban Concept in Food Safety- A Mini Review

Environmental Approach for Securing Halalan Toyyiban Concept in Food Safety- A Mini Review

Types and Source Apportionment of Polycyclic Aromatic Hydrocarbons (PAHs) in Soil-Groundwater of a Closed Coking Plant in Shanxi Province, China

Dibenzofuran Degradation by Bacterial Community in Landfill Leachate

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