Atıf İçin Kopyala
Sushkova S. N., Minkina T. M., Mandzhieva S. S., Vasilyeva G. K., Borisenko N. I., Turina I. G., ...Daha Fazla
JOURNAL OF SOILS AND SEDIMENTS, cilt.16, sa.4, ss.1323-1329, 2016 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
16
Sayı:
4
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Basım Tarihi:
2016
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Doi Numarası:
10.1007/s11368-015-1104-8
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Dergi Adı:
JOURNAL OF SOILS AND SEDIMENTS
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus
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Sayfa Sayıları:
ss.1323-1329
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Anahtar Kelimeler:
Benzo[a]pyrene, Extraction, Monitoring, Soil, Subcritical water, POLYCYCLIC AROMATIC-HYDROCARBONS, SUPERCRITICAL-FLUID EXTRACTION, WATER EXTRACTION, PAHS, STATE
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Ondokuz Mayıs Üniversitesi Adresli:
Evet
Özet
Purpose
The optimization of benzo[a]pyrene extraction conditions by subcritical water extraction method from soils is the purpose of the research. The optimal conditions for benzo[a]pyrene recovery are 30-min extraction by water in a special steel cartridge at 250 °C and 100 atm.
Materials and methods
Studies were conducted on the soils of monitoring plots subjected to Novocherkassk Power Station emissions. Monitoring plots were established at different distances from the Novocherkassk Power Station (NPS; 1.0–20.0 km).
Results and discussion
It was shown that the use of water in subcritical state as a solvent for benzo[a]pyrene extraction from soil allows to avoid large volumes of organic solvents and to decrease the time of sample preparation. It is shown that the maximum benzo[a]pyrene maintenance was observed in soils of the monitoring plots located most close (to 5 km) to a pollution source in the area of the prevailing direction of a wind rose. Dynamics of pollutant accumulation in soils depend on number of Novocherkassk state district power station emissions.
Conclusions
The method of benzo[a]pyrene subcritical water extraction from soil was developed and approbated during long-term monitoring researches of technogenic polluted territories. The optimum conditions for benzo[a]pyrene extraction from soil have been determined: the soil is treating by subcritical water at 250 °C and 100 atmof pressure for 30 min. Trends in the accumulation of benzo[a]pyrene in soil zones of the thermal power plant influence have been researched over a 5-year period of monitoring observations by subcritical water extraction method. Benzo[a]pyrene accumulation in soils depends on the technogenic emissions to the atmosphere from Novocherkassk power station and on the soil physical and chemical properties.