Evidence for in situ production of chlorinated polycyclic aromatic hydrocarbons on tidal flats: Environmental monitoring and laboratory scale experiment

Chemosphere ◽  
2012 ◽  
Vol 88 (5) ◽  
pp. 542-547 ◽  
Author(s):  
Kenshi Sankoda ◽  
Kei Nomiyama ◽  
Takayuki Yonehara ◽  
Tomonori Kuribayashi ◽  
Ryota Shinohara
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Environmental Monitoring ◽  
Aromatic Hydrocarbons ◽  
Tidal Flats ◽  
Laboratory Scale ◽  
Polycyclic Aromatic ◽  
Scale Experiment ◽  
In Situ Production

scholarly journals Multi-Stage Redox Systems Based on Dicationic P-Containing Polycyclic Aromatic Hydrocarbons

2019 ◽  
Author(s):  
Thomas Delouche ◽  
Antoine Vacher ◽  
Elsa Caytan ◽  
Thierry Roisnel ◽  
Boris Le Guennic ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Organic Radical ◽  
Electrochemical Studies ◽  
Redox Systems ◽  
Redox States ◽  
Multi Stage ◽  
Polycyclic Aromatic ◽  
The Impact

In this communication, we report the straightforward<br>synthesis of unprecedented electron-acceptors based on dicationic P-containing PAHs (Polycyclic Aromatic Hydrocarbons) where two phosphoniums are connected through various PAHs backbones. The impact of pi-extension on both the optical and redox properties is investigated using a joint experimental/theoretical approach.<br>Finally, (spectro)-electrochemical studies prove that these<br>compounds possess three redox states and EPR studies confirms the in situ formation of an organic radical.

Ceria and Gold/Ceria Catalysts for the Abatement of Polycyclic Aromatic Hydrocarbons: An In Situ DRIFTS Study

2009 ◽  
Vol 52 (5) ◽  
pp. 492-500 ◽  
Author(s):  
Benjamín Solsona ◽  
Tomás García ◽  
Ramón Murillo ◽  
Ana M. Mastral ◽  
Edwin Ntainjua Ndifor ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
In Situ Drifts ◽  
Polycyclic Aromatic ◽  
Ceria Catalysts

scholarly journals Effects of Neutralization, Decoloration, and Deodorization on Polycyclic Aromatic Hydrocarbons during Laboratory-Scale Oil Refining Process

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Yuxiang Ma ◽  
Longkai Shi ◽  
Yulan Liu ◽  
Qiyu Lu
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Refining Process ◽  
Laboratory Scale ◽  
Oil Refining ◽  
Security Risk ◽  
Experimental Conditions ◽  
Polycyclic Aromatic ◽  
Deodorized Oils

The influence of technological operations during oil refining process on polycyclic aromatic hydrocarbons (PAHs) in neutralized, bleached, and deodorized oils was investigated on the basis of laboratory-scale study. Under the best experimental conditions, benzo[a]pyrene decreased by 85.1%, 99.7%, and 40.8% in neutralized, bleached, and deodorized oils, respectively. Total of 16 analytes decreased by 55.7%, 87.5%, and 47.7%, respectively. Bleaching with activated charcoal was the most efficient procedure to reduce PAHs in crude oil. Neutralization had a modest influence on sixteen analytes; however, deodorization was only responsible for a slight decrease in the light PAHs and heavy PAHs contents. Data obtained in this study suggest that the use of activated carbon during oil refining process is highly recommended; moreover, these results provide a useful guidance for oil refining plant to reduce security risk and ensure the quality of the vegetable oil products.

scholarly journals In-Situ Assessment of PAHs in Contaminated Sea Sediments

2016 ◽  
Author(s):  
Emanuela Frapiccini ◽  
Evgeniya Prokofyeva ◽  
Antonina Bondarenko ◽  
Maria Letizia Ruello ◽  
Mauro Marini
Keyword(s):  
Risk Assessment ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase ◽  
Saturated Soils ◽  
New Materials ◽  
Pollution Risk ◽  
Polycyclic Aromatic ◽  
Water Saturated

The present study describes the activities performed to test a new method for measuring the mobility of polycyclic aromatic hydrocarbons (PAHs) in the solid phase of sediments within the context of environmental pollution risk assessment. The method is based on the design of a new configuration (new materials) of the commercial passive sampler Chemcatcher as probe for predicting the bioavailability of persistent organic pollutants in marine sediments (or in water saturated soils).

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