Multistep thermodesorption coupled with molecular analyses as a quick, easy and environmentally friendly way to measure PAH availability in contaminated soils

Biache, Coralie; Lorgeoux, Catherine; Colombano, Stéfan; Saada, Alain; Faure, Pierre

doi:10.1016/j.talanta.2021.122235

Cited by 4 publications

(1 citation statement)

References 41 publications

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“…The whole sample was finally evaporated under a gentle nitrogen flow and derivatised by adding 100 µL of a mix of N,O-Bis (trimethylsilyl)trifluoroacetamide and dichloromethane (1:1; vol/ vol) before heating to 60°C for 30 min. PAC quantification was performed by gas chromatography-mass spectrometry (Abuhelou et al, 2017;Biache et al, 2021).…”

Section: Laboratory Analysismentioning

confidence: 99%

‘Paleoenvironmental study of modern charcoal making activity on forest soils in the Northern Vosges Mountains (Bitche, France): A multidisciplinary study of two remaining charcoal platforms and associated soils sequences’

Gebhardt,

Poszwa,

Mansuy‐Huault

et al. 2023

Geoarchaeology

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This multidisciplinary study aims to decipher the impact of ancient charcoal production on past and present‐day soils in the northern Vosges Mountains. Soil observations in the field and laboratory were complemented by charcoal and phytolith studies on large thin sections, molecular analyses of organic pollutants, and phytolith analysis on bulk samples. The complex technosol platform records an ancient natural soil sequence buried by a human‐made platform on which charcoal accumulated. The current upslope soil is an entic Podzol. Palaeoecological data collected in the buried soil are reliable owing to low bioactivity due to soil acidity. Podzolisation predated the platform construction. The presence of ashes induced low soil alkalisation developed in the charcoal hearth remains and appears to have generated the migration of subsequent iron/clay/organic bands throughout the platform sediment and the buried soil. Charcoal studied in thin sections revealed mainly Quercus and Fagus taxa. Phytolith studies suggest that a less dense or degraded forest preceded platform construction, probably due to former woodland coppicing or earlier disorganised wood gathering. The specific distribution of polycyclic aromatic hydrocarbons sorbed on charcoal has persisted in soils throughout centuries, but we have no evidence that charcoal‐making activities contributed to diffuse global pollution.

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Section: Laboratory Analysismentioning

confidence: 99%