Page 33 - 《环境工程技术学报》2022年第5期
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Vol.12,No.5 环 境 工 程 技 术 学 报 第 12 卷,第 5 期
Sep.,2022 Journal of Environmental Engineering Technology 2022 年 9 月
孟甜,王晓伟,汪素芳,等.北京市典型湖泊中对羟基苯甲酸酯类化合物污染特 征 [J].环境工程技术学报,2022,12(5):1389-1394.
MENG T,WANG X W,WANG S F,et al.Pollution characteristic analysis of parabens compounds in typical lakes in Beijing[J].Journal of Environmental
Engineering Technology,2022,12(5):1389-1394.
北京市典型湖泊中对羟基苯甲酸酯类化合物污染特征
孟甜,王晓伟 ,汪素芳,董淮晋,冯学良,何连生
*
中国环境科学研究院
摘要 通过在冬季和春季分别采集北京市某典型湖 泊 1 个点位的湖水样品,采用固相萃取-液相色谱-三重四极杆串接质谱法
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测定样品 中 1 种对羟基苯甲酸酯类化合物(PBs),进而对该湖 泊 PB 的污染水平和分布特征进行分析。结果表明:湖水中共检
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出 1 种 PBs,其中对羟基苯甲酸甲酯(MeP)和对羟基苯甲酸丙酯( PrP)浓度较高,分别 为 24.8、44.8 ng/L;同一采样点检出的
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PB 浓度随季节性变化而变化,与冬季相比,氯代对羟基苯甲酸酯(氯代-PBs)在春季浓度偏低,冬季靠近污水处理厂排污口水样
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中,氯代-PB 浓度高于其他采样点;外来污水是湖水 中 PB 的主要来源,春季电厂排水 口 Me 浓度(24.8 ng/L)高于冬季(1.30
P
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ng/L)。调查结果显示,该湖泊 中 PB 种类和浓度水平与其他国家地表水相比,属中等浓度水平,湖泊 中 PB 主要来源于周边污
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水排放,不同季 节 PB 浓度变化较大。
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关键词 对羟基苯甲酸酯类化合 物 (PBs);湖泊;季节变化;氯代对羟基苯甲酸 酯 (氯代-PBs);污染水平
中图分类号:X524 文章编号:1674-991X(2022)05-1389-06 doi:10.12153/j.issn.1674-991X.20210383
Pollution characteristic analysis of parabens compounds in typical lakes in Beijing
*
MENG Tian, WANG Xiaowei , WANG Sufang, DONG Huaijin, FENG Xueliang, HE Liansheng
Chinese Research Academy of Environmental Sciences
Abstract In order to study the pollution level and distribution characteristics of parabens (PBs) in lakes, the
pollution status of 14 PBs in typical lakes in Beijing was investigated and analyzed. The water samples of a lake in
Beijing were collected in both winter and summer, and detected by solid-phase extraction and liquid
chromatography-triple quadrupole tandem mass spectrometry. The results showed that ten kinds of PBs were
detected with high level in the lake, among which methylparaben (MeP, 24.8 ng/L) and propylparaben (PrP, 44.8
ng/L) were the dominant compounds. The concentrations of the target compounds detected at the same sampling site
changed seasonally, and the concentrations of chlorinated parabens in spring were lower than those in winter.
However, in the winter near the outlet of the wastewater treatment plant, the concentrations of chlorinated parabens
were higher than those at other sampling sites. The external sewage was the main source of PBs in the lake water,
and the concentration of MeP at the sampling site of the outlet of the power plant in spring (24.8 ng/L) was higher
than that in winter (1.30 ng/L). The survey results showed that the species and concentration level of PBs in the lake
were medium comparing with those reported in the researches of other nations. The pollution of PBs in the lake
mainly came from the surrounding sewage discharge, and the concentration of PBs varied greatly in different
seasons.
Key words parabens (PBs); lake; seasonal variation; chlorinated parabens; pollution level
对羟基苯甲酸酯类化合物(parabens,PBs),又称 性,水溶液抗菌性好, 在 p H 为 4.5~7. 时有良好的
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尼泊金酯,无色无味,结构如 图 1 所示。PB 主要包 化学稳定性,故其在酸、碱性溶液中均有防腐效果;
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括对羟基苯甲酸甲酯(MeP)、对羟基苯甲酸乙酯 又因其具有价格低廉等优点,被广泛应用于医药、食
(EtP)、对羟基苯甲酸丙酯(PrP)、对羟基苯甲酸丁酯 品、日化、纺织、饲料、食品及各种工业防腐中 。
[1]
(BuP)等正烷基链酯类,对羟基苯甲酸苄基酯及一些 仅以化妆品而言,目前大 约 22 00 种产品中使用
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[2]
氯代的对羟基苯甲酸酯。由 于 PB 具有广谱抗菌 PB 类化合物作为防腐剂, 且 PB 含量高 达 0.8% 。
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收稿日期:2021-08-05
基金项目:国家重点研发计划项 目 (2020YFC1807903)
作者简介:孟 甜 (1993—),女,硕士研究生,主要从事环境污染物检测分析,mengtian@craes.org.cn
* 责任作者:王晓 伟 (1978—),男,高级工程师,主要从事环境污染物研究,wang.xiaowei@craes.org.cn