Effects of the geophagous earthworm Metaphire guillelmi on sorption, mineralization, and bound-residue formation of 4-nonylphenol in an agricultural soil
Effects of the geophagous earthworm Metaphire guillelmi on sorption, mineralization, and bound-residue formation of 4-nonylphenol in an agricultural soil
复制标题
地食性蚯蚓 Metaphire guillelmi 对农业土壤中 4-壬基酚吸附、矿化和结合残留物形成的影响
DOI：
10.1016/j.envpol.2014.03.007
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发表时间：
2014
影响因子：
8.9
通讯作者：
Ji R
中科院分区：
文献类型：
--
作者：
Shan J;Wang YF;Wang LH;Yan XY;Ji R
蚯蚓对壬基酚（NP）归宿的影响尚不清楚。以14 C-4-NP 111为代表，研究了4-NP在有蚯蚓和无蚯蚓的农田土壤中以及在蚯蚓新鲜粪便中的去向。4-NP在铸型（Kd 1564）上的吸附量显著高于在母质（Kd 1474）上的吸附量。4-NP的矿化率在投喂蚯蚓和有蚯蚓的土壤中分别为13.2%和10.4%，显著低于无蚯蚓的土壤（16.0%）。在土壤和铸件中鉴定出4-NP 111的一种硝基代谢物（2-硝基-4-NP 111），并且该硝基代谢物的存在显著降低了其量。在土壤中的4-NP的结合残留物的形成也显着减少的存在下，ESTA。我们的研究结果表明，蚯蚓可以显着改变命运的4-NP，强调蚯蚓的影响，应考虑在评估行为和风险的4-NP在土壤中。
Effects of earthworms on fate of nonylphenol (NP) are obscure. Using14C-4-NP111as a representative, we studied the fate of 4-NP in an agricultural soil with or without the earthwormMetaphire guillelmiand in fresh cast of the earthworm. Sorption of 4-NP on the cast (Kd1564) was significantly higher than on the parent soil (Kd1474). Mineralization of 4-NP was significantly lower in the cast (13.2%) and the soil with earthworms (10.4%) than in the earthworm-free soil (16.0%). One nitro metabolite of 4-NP111(2-nitro-4-NP111) was identified in the soil and cast, and the presence of the earthworm significantly decreased its amounts. The presence of earthworm also significantly decreased formation of bound residues of 4-NP in the soil. Our results demonstrate that earthworms could significantly change the fate of 4-NP, underlining that earthworm effects should be considered when evaluating behavior and risk of 4-NP in soil.