Determination and distribution of pesticides and antibiotics in agricultural soils from northern China.
Determination and distribution of pesticides and antibiotics in agricultural soils from northern China.
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作者：
本文收集了中国北方典型农田不同类型的土壤样品，并对农药和抗生素的存在进行了评估。采用快速、简便、廉价、有效、坚固、安全（QuEChERS）的制备方法提取47种农药，用50 mg C18清洗；采用甲醇/ EDTA-McIlvaine缓冲液（v/v = 1/1）提取10种抗生素，并采用高效液相色谱-串联质谱（HPLC-MS/MS）进行分析。土壤样品中47种农药的总浓度从无法检测到（ND）到3.8 mg kg - 1不等。阿特拉津、毒死蜱、戊康唑、异虫康唑、吡虫嗪和噻虫嗪的生态风险较高，超过1.0%的样品浓度超过0.1 mg kg−1。10种抗生素残留水平均较低（ND-951.0 μ kg−1）。四环素类药物的检出率较高（20.9%），其中2.8%的土壤样品中四环素类药物的浓度超过100 μg kg−1，具有较高的生态风险。4种磺胺类和2种大环内酯类的检出率均在0.8%以下。农药和抗生素分布的空间变化似乎与土地利用模式，特别是果园和菜地有关。果园农药和抗生素超标率高于菜地，粮田农药和抗生素超标率最低。这些数据有助于了解这些农药和抗生素的污染情况，为土壤质量评价和风险评价提供有价值的信息。本文收集了中国北方典型农田不同类型的土壤样品，并对农药和抗生素的存在进行了评估。
Different types of soil samples from a typical farmland in northern China were collected and evaluated for the presence of the pesticides and antibiotics. 47 pesticides were extracted with a quick, easy, cheap, effective, rugged, and safe (QuEChERS) preparation method and cleanup with 50 mg C18, while 10 antibiotics were extracted with methanol/EDTA–McIlvaine buffer solution (v/v = 1/1), then both of them were analyzed with high performance liquid chromatography-tandem mass spectrometer (HPLC-MS/MS). Total concentrations of the 47 pesticides in the soil samples ranged from not detectable (ND) to 3.8 mg kg−1. The soil exhibited relatively high ecological risk for atrazine, chlorpyrifos, tebuconazole, difenoconazole, pymetrozine, and thiamethoxam, as over 1.0% of the sample concentrations exceeded 0.1 mg kg−1. The residual levels of the 10 antibiotics were relatively low (ND-951.0 μg kg−1). Tetracyclines exhibited a high detection rate (20.9%), with 2.8% of the soil samples exhibiting tetracyclines concentrations exceeding 100 μg kg−1, implying high ecological risk. The 4 sulfonamides and 2 macrolides analyzed showed detection rates below 0.8%. Spatial changes in the distribution of pesticides and antibiotics appear to be related to land use patterns, particularly orchards and vegetable plots. The over-standard rate of pesticides and antibiotics in orchards was greater than that of vegetable plots, and grain fields had the lowest over-standard rate. These data were helpful to figure out the pollution of these pesticides and antibiotics, and provided valuable information for soil quality assessment and risk assessment. Different types of soil samples from a typical farmland in northern China were collected and evaluated for the presence of the pesticides and antibiotics.
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影响因子：
--
作者：
Chen YongShan;Zhang HaiBo;Song Jing
通讯作者：
Song Jing
影响因子：
8.8
作者：
Blackwell, Paul A.;Kay, Paul;Boxall, Alistair B. A.
通讯作者：
Boxall, Alistair B. A.
影响因子：
4.1
作者：
Kiljanek, Tomasz;Niewiadowska, Alicja;Posyniak, Andrzej
通讯作者：
Posyniak, Andrzej
影响因子：
8.8
作者：
Chen, Guoqiang;Cao, Pengying;Liu, Renjiang
通讯作者：
Liu, Renjiang
DOI：
10.22034/gjesm.2017.03.03.006
发表时间：
2017-06-01
影响因子：
3.4
作者：
Atuanya, E. I.;Aborisade, W. T.
通讯作者：
Aborisade, W. T.