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1.广东省广州生态环境监测中心站,广东 广州 510006
2.生态环境部华南环境科学研究所, 广东 广州 510655
区 晖,高级工程师,研究方向:环境新污染物监测与风险评估,E-mail:40406223@qq.com
收稿日期:2025-03-31,
修回日期:2025-05-09,
录用日期:2025-05-12,
纸质出版日期:2025-08-15
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区晖,刘永杰,黄雅阳,周志敏,刘鹤,谢丹平,贾成俊,刘威奇.珠三角纺织印染废水中新污染物的识别与环境风险评估[J].分析测试学报,2025,44(08):1568-1576.
OU Hui,LIU Yong-jie,HUANG Ya-yang,ZHOU Zhi-min,LIU He,XIE Dan-ping,JIA Cheng-jun,LIU Wei-qi.Identification and Environmental Risk Assessment of Emerging Contaminants in Textile Dyeing Wastewater from the Pearl River Delta Region[J].Journal of Instrumental Analysis,2025,44(08):1568-1576.
区晖,刘永杰,黄雅阳,周志敏,刘鹤,谢丹平,贾成俊,刘威奇.珠三角纺织印染废水中新污染物的识别与环境风险评估[J].分析测试学报,2025,44(08):1568-1576. DOI: 10.12452/j.fxcsxb.250331249.
OU Hui,LIU Yong-jie,HUANG Ya-yang,ZHOU Zhi-min,LIU He,XIE Dan-ping,JIA Cheng-jun,LIU Wei-qi.Identification and Environmental Risk Assessment of Emerging Contaminants in Textile Dyeing Wastewater from the Pearl River Delta Region[J].Journal of Instrumental Analysis,2025,44(08):1568-1576. DOI: 10.12452/j.fxcsxb.250331249.
为调查重点行业新污染物产生状况与评估水环境风险,采用基于固相萃取、高效液相色谱-四极杆飞行时间质谱技术非靶向快速筛查法和高效液相色谱-三重四极杆质谱技术靶向精准定量法,对纺织印染行业废水中新污染物进行筛查识别,考察其在排放废水中的赋存特征,并采用风险商值法评估行业特征新污染物的环境风险。结果表明,6家纺织印染工业园区/企业共筛查出88种印染行业类和60种工业化学品类特征新污染物,其中1级置信度化合物6种,2级置信度化合物128种,3级置信度14种。基于非靶向筛查结果,选取关注度较高的全氟化合物、双酚A及烷基酚类和苯胺类化合物开展靶向精准定量,全氟化合物的质量浓度为19.8~68.1 ng/L,双酚A及烷基酚为31.5~532 ng/L,苯胺类为9~186 ng/L。废水中全氟辛烷磺酸、4-支链壬基酚、4-硝基苯胺和苯胺的浓度水平较高,其中4-支链壬基酚的浓度显著高于其它新污染物单体,最高为369 ng/L。基于风险商值,全氟化合物和苯胺类化合物处于低风险和无风险水平,而双酚A及烷基酚处于中、低风险,值得关注。研究结果可为纺织印染行业废水中新污染物的风险管控与精准治理提供技术支持。
To investigate the generation status of emerging contaminants in key industries and evaluate water environment risks,this paper employed a non-targeted identification method utilizing solid-phase extraction/high performance liquid chromatography-quadrupole time-of-flight mass spectrometry(SPE/HPLC-QTOF MS) technology and a targeted quantification method based on solid-phase extraction/high performance liquid chromatography triple quadrupole mass spectrometry(SPE/HPLC-MS/MS) technology. These methods were used to screen and identify emerging contaminants in wastewater from the textile printing and dyeing industry,examine their presence characteristics in discharged wastewater,and assessed the ecological and environmental risks of these priority emerging contaminants using risk quotient analysis. Results revealed that a total of 88 types of emerging contaminants specific to the textile dyeing industry and 60 types of industrial chemicals were identified across six textile dyeing industrial parks/enterprises. These contaminants comprised 6 compounds with confidence level 1,128 compounds with a confidence level 2,and 14 compounds with a confidence level 3. Based on the results of non-targeted identification,we selected perfluorinated compounds,bisphenol A,alkylphenols,and anilines,which garnered significant attention,for targeted and precise quantification as well as ecological risk assessment. The results indicated that the concentration levels ranged from 19.8 to 68.1 ng/L for perfluorinated compounds,31.5 to 532 ng/L for bisphenol A and alkylphenols,and 9 to 186 ng/L for anilines. The exposure levels of perfluorooctane sulfonic acid,4-branched nonylphenol,4-nitroaniline and aniline in wastewater were relatively high,and the concentration of 4-branched nonylphenol was significantly higher than that of other emerging contaminants monomers,with the highest concentration of 369 ng/L. Based on the risk quotient(RQ),perfluorinated compounds and anilines were at low ecological risk even no risk levels. Conversely,the bisphenol A and alkylphenols fall into the medium and low risk categories,meriting attention. This research can provide technical supports for the risk control and precise treatment of emerging contaminants in textile dyeing industry wastewater.
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