@misc{MykhailovaFischerIurchenko, author = {Mykhailova, Larysa and Fischer, Thomas and Iurchenko, Valentina}, title = {Distribution and fractional composition of petroleum hydrocarbons in roadside soils}, series = {Applied and Environmental Soil Science}, volume = {2013}, journal = {Applied and Environmental Soil Science}, number = {ID 938703}, doi = {10.1155/2013/938703}, pages = {1 -- 6}, language = {en} } @inproceedings{MykhailovaFischerIurchenko, author = {Mykhailova, Larysa and Fischer, Thomas and Iurchenko, Valentina}, title = {Microbial activity and soil organic matter decay in roadside soils polluted with petroleum hydrocarbons}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{MykhailovaFischerIurchenko, author = {Mykhailova, Larysa and Fischer, Thomas and Iurchenko, Valentina}, title = {Microbial activity and decomposition of soil organic matter in roadside soils contaminated with petroleum hydrocarbons}, series = {CLEAN - Soil Air Water}, journal = {CLEAN - Soil Air Water}, issn = {1863-0669}, doi = {10.1002/clen.201800132}, pages = {8}, abstract = {Petroleum hydrocarbons (PHs) are the most widespread organic pollutants of roadside soils, the reclamation of which is costly due to large areas affected, and natural PHs biodegradation is the only way of mitigating negative ecological consequences. This study aimed to investigate the microbial response to PHs in roadside soils and to identify soil organic matter (SOM) and PHs involved in biodegradation processes. To address this aim, soil respiration is related to light (chain-length ≤C14) medium (C15-C27), and heavy fractions (≥C28) of total PHs, and to SOM components: carbohydrates, proteins, lignin, aliphates, carbonyl/carboxyl, and char amounts of soils sampled at distances of up to 100 m from three roads in Kharkiv, Ukraine. A close relation between soil respiration and ratio of the light fraction to the sum of medium and heavy alkane fractions indicate the preferential mineralization of more biodegradable light PHs fractions. A positive relation between soil respiration and carbohydrate C, as well as negative correlation with aliphatic C, indicate preferred degradation of carbohydrates compared to more recalcitrant aliphates. Carbohydrate content increased and aliphatic C decreased with distance from the roads, and carbohydrates decreased with PHs concentration, indicating increased degradation of carbohydrates at high PHs concentrations (positive priming). It is concluded that microorganisms generate the energy required for PHs degradation by enhanced oxidation of native SOM where carbohydrates were of paramount importance.}, language = {en} } @inproceedings{IurchenkoMykhailovaFischer, author = {Iurchenko, Valentina and Mykhailova, Larysa and Fischer, Thomas}, title = {Kinetic Characteristics of Petrochemicals Transposition and Accumulation in Soils of Roadside Area}, series = {Transbaltica 2013 Conference Proceedings, 09.-10. May 2013, Vilnius, Lithuania}, booktitle = {Transbaltica 2013 Conference Proceedings, 09.-10. May 2013, Vilnius, Lithuania}, doi = {10.3846/transbaltica2013.016}, pages = {4}, language = {en} } @misc{MykhailovaFischerIurchenko, author = {Mykhailova, Larysa and Fischer, Thomas and Iurchenko, Valentina}, title = {Deposition of petroleum hydrocarbons with sediment trapped in snow in roadside areas}, series = {Journal of Environmental Engineering and Landscape Management}, volume = {22}, journal = {Journal of Environmental Engineering and Landscape Management}, number = {3}, issn = {1822-4199}, doi = {10.3846/16486897.2014.889698}, pages = {237 -- 244}, abstract = {Total petroleum hydrocarbon (TPH) deposition rates were determined along various roads using the natural snow cover as deposition trap. Daily deposition rates decreased with distance from the roads, which coincided with long-term TPH accumulation in roadside soils. Scanning electron microscopy (SEM-EDX) of the snow meltwater sediment revealed occurrence of carbon-rich plaques, which were identified as hydrocarbons using FTIR-microscopy. GC-MS revealed that the compounds extracted from the sediment consisted of an unresolved complex hydrocarbon mixture (UCM). Individual n-alkanes could not be resolved in the sediment extract, whereas TPHs extracted from soils contained a series of n-alkanes peaking at C25-C27. The proportion of UCM compounds from TPHs decreased with distance from road. We conclude that high-boiling hydrocarbons bind to coarse mineral dust and/or to splash water and vehicle spray, which preferentially deposit within a 10 m roadside strip.}, language = {en} }