申立娜,张璐璐,秦珊,姚波,崔建升.白洋淀喹诺酮类抗生素污染特征及其与环境因子相关性研究[J].环境科学学报,2019,39(11):3888-3897
白洋淀喹诺酮类抗生素污染特征及其与环境因子相关性研究
- The occurrence and distribution of quinolones (QNs) and correlation analysis between QNs and physical-chemical parameters in Baiyangdian Lake, North China
- 基金项目：国家自然科学基金（No.41601547）；国家重点基础研究发展计划（No.2015CB458900）；河北省自然科学基金（No.D2017208003，D2019208152）；河北省高等学校青年拔尖人才项目（No.BJ2017013）；河北省社会科学基金（No.HB19YJ023）
- 申立娜
- 河北科技大学环境科学与工程学院, 石家庄 050018
- 张璐璐
- 1. 河北科技大学环境科学与工程学院, 石家庄 050018;2. 河北省污染防治生物技术实验室, 石家庄 050018
- 秦珊
- 河北科技大学环境科学与工程学院, 石家庄 050018
- 姚波
- 河北科技大学环境科学与工程学院, 石家庄 050018
- 崔建升
- 1. 河北科技大学环境科学与工程学院, 石家庄 050018;2. 河北省污染防治生物技术实验室, 石家庄 050018
- 摘要：利用超高效液相色谱串联质谱法（HPLC-MS）对白洋淀水体和沉积物中喹诺酮类（Quinolones，QNs）抗生素进行检测，并研究其生态风险空间分异特征，探究其与环境因子的相关性.结果表明：①白洋淀氧氟沙星（Ofloxacin，OFL）和氟甲喹（Flumequine，FLU）的检出率最高（100%），其次为马波沙星（Marbofloxacin，MAR）和氟罗沙星（Fleroxacin，FLE）（≥ 60%），其余QNs的检出率较低（≤ 35%）；②白洋淀水体和沉积物中QNs抗生素浓度范围分别为153.39~1550.07 ng·L-1和10.22~381.85 ng·g-1，水体中QNs在S1处浓度最高，S4处最低，沉积物中QNs在S2处浓度最高；③相关性分析结果表明，水体透明度（Secchi depth，SD）、总氮（Total nitrogen，TN）、总磷（Total phosphorus，TP）、硝氮（Nitrate nitrogen，NO3--N）、沉积物氨氮（Ammonia nitrogen，NH3-Ns）和沉积物总氮（TNs）与QNs相关性显著，其中，SD、TP和NH3-Ns与部分QNs（MAR、恩诺沙星（Enrofloxacin，ENR）和FLE）显著相关（p<0.01），表明生活污水和养殖废水对QNs的贡献较大；④生态风险评价结果表明，白洋淀QNs总体处于中低风险水平，其中，ENR处于中高风险水平，其余QNs处于低风险水平；就空间分布而言，除S1和S9为高风险区外，其余各点为中低风险区.
- Abstract：The concentrations of quinolones (QNs) in Baiyangdian Lake were detected by high performance liquid chromatography tandem mass spectrometry (HPLC-MS). Correlation analysis was conducted between the concentrations of QNs and physical-chemical parameters in water and sediment, and ecological risk was assessed by risk quotient method. The results showed that:①the detection frequency of ofloxacin (OFL) and flumequine (FLU) in Baiyangdian Lake was the highest (Freq=100%), followed by marbofloxacin (MAR) and fleroxacin (FLE) (Freq ≥ 60%), and the detection rate of other QNs was low (Freq ≤ 35%); ②the concentration of QNs in Baiyangdian Lake ranged from 153.39 ng·L-1 to 1550.07 ng·L-1 in water and from 10.22 ng·g-1 to 381.85 ng·g-1 in sediment. Thereinto, the highest concentration of QNs in water appeared at S1, while at S2 in sediment; ③through correlation analysis, the results showed that secchi depth (SD), total nitrogen (TN), total phosphorus (TP), nitrate nitrogen (NO3--N), NO2--N, ammonia nitrogen (NH3-Ns) and TNs were significantly correlated with QNs, which indicated that domestic sewage and aquaculture wastewater were the main sources for QNs; ④the ecological risk of QNs in Baiyangdian Lake was at medium-low risk level. Thereinto, enrofloxacin (ENR) was at medium-high risk level, while the other QNs were at low-risk level. According to the variation of spatial distribution, S1 and S9 were at high-risk level, while the other sites were at medium-low risk level.
