Applicability from Earthworms to Live in the Soil with PAHs

Abstract:

This paper adopts a pot incubation test in greenhouse to study the enhancing applicability from earthworms (Pheretima sp.) live in the soil with PAHs.Pheretima (Pheretima sp.) had a certain level of tolerance towards PAHs polluted soils. Phenanthrene and pyrene were found to inhibit the growth of Pheretima to a certain extent. The inhibition rates were 7.09% ~ 25.19% and 6.79%~ 27.83% respectively. Furthermore, with increasing concentrations of PAHs in the soil, the inhibition effect on the growth of Pheretima became progressively stronger. In this experiment, the earthworms were found to have a certain role in promoting the degradation of phenanthrene and pyrene in the soil, but not to a significant extent, (n = 15, p> 0.05). Moreover, with the highering of the degradation ratio of pollutants, the rate of promotion of the earthworms on phenanthrene and pyrene degradation also decreased.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 2155-2161
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.2155
• Online since: June 2014
• Authors: Xin Yuan, Sheng Wang Pan, Guo Pu Ma, Qiu Lin He*
• Keywords: Earthworm (Pheretima sp.), Phytoremediation, Polycyclic Aromatic Hydrocarbons (PAHs), Soil

References

[1] Menzie C.A., Potoki B.B. et al. Exposure to carcinogenic PAHs in the environment. Environ. Sci. Technol., 1992, 26(7): 1278-1284.

DOI: 10.1021/es00031a002

[2] Binet P, Portal JM, Leyval C. Dissipation of 3–6-ring polycyclic aromatic hydrocarbons in the rhizosphere of ryegrass. Soil Biol Biochem 2000; 32: 2011 –(2017).

DOI: 10.1016/s0038-0717(00)00100-0

[3] Chen Y C, Katherinebanks M, Paulschwab A. Pyrene degradation in the rhizosphere of Tall Fescue (Festuca arundinacea) and Switchgrass (Panicum virgatum L). Environ Sci Technol 2003; 37: 5778–5782.

DOI: 10.1021/es030400x

[4] Kamath R, Schnoor JL, Alvarez PJJ. Effect of root-derived substrates on the expression of nah-lux genes in pseudomonas fluorescens HK44: Implications for PAH biodegradation in the rhizosphere. Environ Sci Technol 2004; 38: 1740–1745.

DOI: 10.1021/es0306258

[5] Lifeng Ping and Yongming Luo, Effect of Organic Matter on Environment Behaviors of Polycyclic Aromatic Hydrocarbons [J] Soil, 2005, 37(4): 362-369.

[6] Huixin Li, Feng Hu, Qirong Shen, Effect of Earthworms Inoculation on soil Carbon and Nitrogen Dynamics and Crop Yield with Application of Corn Residues [J]. Chinese Journal of Applied Ecology, 2002, 13(12): 1637-1641.

[7] Johnson, D.L., Jones, K.C., Langdon, C.J., Piearce, T.G., Semple, K.T.,. Temporal changes in earthworm availability and extractability of polycyclic aromatic hydrocarbons in soil. Soil Biology & Biochemistry . 2002. 34, 1363–1370.

DOI: 10.1016/s0038-0717(02)00081-0

[8] Yanzheng Gao, Lizhong Zhu, Wanting Ling, PAHs Analytical Method Research of Soil and Plant Samples [J]. Journal of Agro-environment Science, 2005, 24(5): 1003-1006.

[9] Edwards CA, Bohlen PJ. Biology and Ecology of Earthworm. London: Chapman Hall. 1996, 151-168.

[10] Kipoponlou A M, Manoli E, Samara C. Bioconcentration of polycyclic aromatic hydrocarbons in vegetables grown in an industrial area. Environmental Pollution, 1999, 106: 369~380.

DOI: 10.1016/s0269-7491(99)00107-4

[11] Reilley K A, Banks M K, Schwab A P. Dissipation of Polycyclic Aromatic Hydrocarbons in the rhizosphere. Journal of Environmental Quality, 1996, 25: 212-218.

DOI: 10.2134/jeq1996.00472425002500020002x

[12] Ke L, Wang W Q., et al. Removal of pyrene from contaminated sediments by mangrove microcosms. Chemosphere, 2003, 51: 25–34.

DOI: 10.1016/s0045-6535(02)00811-1