生态环境学报 ›› 2024, Vol. 33 ›› Issue (2): 249-260.DOI: 10.16258/j.cnki.1674-5906.2024.02.009
梁贝竹1(), 陈建耀1,*, 杨再智1, 张鹏程1, 任坤1, 梁作兵1, 杨晨晨1, 吴洁珊2
收稿日期:
2023-08-31
出版日期:
2024-02-18
发布日期:
2024-04-03
通讯作者:
*陈建耀。作者简介:
梁贝竹(2001年生),女,硕士研究生,研究方向为流域水环境。E-mail: liangbzh3@mail2.sysu.edu.cn
基金资助:
LIANG Beizhu1(), CHEN Jianyao1,*, YANG Zaizhi1, ZHANG Pengcheng1, REN Kun1, LIANG Zuobing1, YANG Chenchen1, WU Jieshan2
Received:
2023-08-31
Online:
2024-02-18
Published:
2024-04-03
摘要:
药物和个人护理用品(Pharmaceutical and Personal Care Products,PPCPs)是在环境中长期存在并对人类乃至整个生态系统的健康造成威胁的两类化学消费品。珠江三角洲流域PPCPs的检出水平总体较高,沿海地区地下水中的PPCPs污染有待进一步探究。于2021年9月在珠海市唐家湾镇采集了16个地下水样本,使用LC-MS/MS分析技术对21种PPCPs进行检测,使用数理统计方法和相关性分析对研究区地下水中PPCPs浓度特征和污染来源进行解析,并结合地下水化学特征及统计分析对其影响因素进行探究,旨在为滨海地区地下水的PPCPs特征分析提供案例依据。研究发现,1)研究区地下水呈弱酸至弱碱性,水化学类型多属于HCO3-Ca型,沿地下水流方向受人为污染的影响越来越显著。2)研究区地下水中检测到6种PPCPs,平均质量浓度和检出率分别为:磺胺甲恶唑(5.51 ng∙L−1,81%)、磺胺甲基嘧啶(1.18 ng∙L−1,100%)、磺胺二甲基嘧啶(0.168 ng∙L−1,25%)、卡马西平(35.7 ng∙L−1,94%)、咖啡因(110 ng∙L−1,100%)、西马特罗(0.100 ng∙L−1,6%);磺胺类化合物和卡马西平从补给区到排泄区整体污染情况加重,存在一定累积效应,而咖啡因无明显的空间分布规律;可以将卡马西平视作研究区内PPCPs总体污染的潜在标志物。3)研究区地下水PPCPs属于农业和城镇活动的混合来源;磺胺二甲基嘧啶与水温呈显著正相关(P<0.05),与代谢菌群的繁殖和吸附过程有关;磺胺甲基嘧啶和咖啡因均与溶解氧呈显著负相关(P <0.05),与化粪池污水输入有关。综上所述,研究区地下水受到人类活动污染的程度较高,农业和城镇活动将大量PPCPs引入到地下水当中。
中图分类号:
梁贝竹, 陈建耀, 杨再智, 张鹏程, 任坤, 梁作兵, 杨晨晨, 吴洁珊. 华南滨海小流域地下水中PPCPs的分布、来源及影响因素——以珠海市唐家湾镇为例[J]. 生态环境学报, 2024, 33(2): 249-260.
LIANG Beizhu, CHEN Jianyao, YANG Zaizhi, ZHANG Pengcheng, REN Kun, LIANG Zuobing, YANG Chenchen, WU Jieshan. Spatial Pattern and Sources of PPCPs in Groundwater and Relevant Influencing Factors in a Coastal Watershed in South China: A Case Study in Tangjiawan Town of Zhuhai, Guangdong Province[J]. Ecology and Environment, 2024, 33(2): 249-260.
图2 珠海市唐家湾镇采样井分布(土地利用背景来自 (Li et al., 2023)) 基于自然资源部标准地图服务网站GS (2016) 1600号标准地图制作,底图边界无修改
Figure 2 Distribution of sampling wells in Tangjiawan Town, Zhuhai City (Land use background from (Li et al., 2023) )
采样井 | 纬度 | 经度 |
---|---|---|
TJ01 | 22.3644°N | 113.5877°E |
TJ02 | 22.3638°N | 113.5878°E |
TJ03 | 22.3636°N | 113.5881°E |
TJ04 | 22.3636°N | 113.5889°E |
TJ05 | 22.3636°N | 113.5883°E |
TJ06 | 22.3636°N | 113.5898°E |
TJ07 | 22.3631°N | 113.5897°E |
TJ08 | 22.3626°N | 113.5889°E |
TJ09 | 22.3622°N | 113.5883°E |
TJ10 | 22.3625°N | 113.5878°E |
TJ11 | 22.3628°N | 113.5881°E |
TJ12 | 22.3622°N | 113.5897°E |
TJ13 | 22.3625°N | 113.5906°E |
TJ14 | 22.3628°N | 113.5903°E |
TJ15 | 22.3631°N | 113.5922°E |
TJSQS | 22.3608°N | 113.5818°E |
表1 珠海市唐家湾镇采样井概况
Table 1 Characteristics of sampling wells in Tangjiawan Town, Zhuhai City
采样井 | 纬度 | 经度 |
---|---|---|
TJ01 | 22.3644°N | 113.5877°E |
TJ02 | 22.3638°N | 113.5878°E |
TJ03 | 22.3636°N | 113.5881°E |
TJ04 | 22.3636°N | 113.5889°E |
TJ05 | 22.3636°N | 113.5883°E |
TJ06 | 22.3636°N | 113.5898°E |
TJ07 | 22.3631°N | 113.5897°E |
TJ08 | 22.3626°N | 113.5889°E |
TJ09 | 22.3622°N | 113.5883°E |
TJ10 | 22.3625°N | 113.5878°E |
TJ11 | 22.3628°N | 113.5881°E |
TJ12 | 22.3622°N | 113.5897°E |
TJ13 | 22.3625°N | 113.5906°E |
TJ14 | 22.3628°N | 113.5903°E |
TJ15 | 22.3631°N | 113.5922°E |
TJSQS | 22.3608°N | 113.5818°E |
统计指标 | 电导率/ (μS∙cm−1) | 溶解性总固体/ (mg∙L−1) | 盐度/ (mg∙L−1) | 溶解氧/ (mg∙L−1) | pH |
---|---|---|---|---|---|
最小值 | 54.1 | 40.1 | 23.8 | 0.850 | 5.79 |
最大值 | 600 | 462 | 272 | 7.04 | 8.43 |
平均值 | 386 | 291 | 174 | 3.29 | 7.01 |
标准差 | 154 | 126 | 70.6 | 1.96 | 0.710 |
变异系数/% | 40.0 | 43.4 | 40.5 | 59.5 | 10.1 |
表2 珠海市唐家湾镇地下水基本理化参数统计特征值
Table 2 Statistical characteristic of physicochemical parameters of groundwater in Tangjiawan Town, Zhuhai City
统计指标 | 电导率/ (μS∙cm−1) | 溶解性总固体/ (mg∙L−1) | 盐度/ (mg∙L−1) | 溶解氧/ (mg∙L−1) | pH |
---|---|---|---|---|---|
最小值 | 54.1 | 40.1 | 23.8 | 0.850 | 5.79 |
最大值 | 600 | 462 | 272 | 7.04 | 8.43 |
平均值 | 386 | 291 | 174 | 3.29 | 7.01 |
标准差 | 154 | 126 | 70.6 | 1.96 | 0.710 |
变异系数/% | 40.0 | 43.4 | 40.5 | 59.5 | 10.1 |
统计指标 | ρ(K+) | ρ(Na+) | ρ(Ca2+) | ρ(Mg2+) | ρ(Cl−) | ρ(SO42−) | ρ(HCO3−) |
---|---|---|---|---|---|---|---|
最小值/ (mg∙L−1) | 3.93 | 7.27 | 1.26 | 0.520 | 5.65 | 1.06 | 30.5 |
最大值/ (mg∙L−1) | 64.8 | 51.3 | 96.4 | 7.27 | 87.7 | 69.7 | 317 |
平均值/ (mg∙L−1) | 36.4 | 31.6 | 55.9 | 4.69 | 42.1 | 41.2 | 157 |
标准差/ (mg∙L−1) | 17.3 | 13.4 | 27.3 | 1.96 | 20.7 | 19.7 | 84.3 |
变异系数/% | 47.6 | 42.6 | 48.9 | 41.8 | 49.2 | 47.7 | 53.8 |
表3 珠海市唐家湾镇地下水离子质量浓度统计特征值
Table 3 Statistical characteristic of ionic concentration in groundwater in Tangjiawan Town, Zhuhai City
统计指标 | ρ(K+) | ρ(Na+) | ρ(Ca2+) | ρ(Mg2+) | ρ(Cl−) | ρ(SO42−) | ρ(HCO3−) |
---|---|---|---|---|---|---|---|
最小值/ (mg∙L−1) | 3.93 | 7.27 | 1.26 | 0.520 | 5.65 | 1.06 | 30.5 |
最大值/ (mg∙L−1) | 64.8 | 51.3 | 96.4 | 7.27 | 87.7 | 69.7 | 317 |
平均值/ (mg∙L−1) | 36.4 | 31.6 | 55.9 | 4.69 | 42.1 | 41.2 | 157 |
标准差/ (mg∙L−1) | 17.3 | 13.4 | 27.3 | 1.96 | 20.7 | 19.7 | 84.3 |
变异系数/% | 47.6 | 42.6 | 48.9 | 41.8 | 49.2 | 47.7 | 53.8 |
图5 珠海市唐家湾镇地下水Cl?质量浓度与NO3?/Cl?摩尔比值的关系
Figure 5 Relationship between Cl? mass concentration and NO3?/Cl? molar ratio of groundwater in Tangjiawan Town, Zhuhai City
PPCPs种类 | 质量浓度范围/ (ng∙L−1) | 中间值/ (ng∙L−1) | 均值/ (ng∙L−1) | 检出率/ % |
---|---|---|---|---|
Sulfadimethoxine 磺胺间二甲氧嘧啶 | ND | 0 | 0 | 0 |
Sulfamethoxazole 磺胺甲恶唑 | ND‒58.6 | 29.3 | 5.51 | 81.0 |
Sulfamonomethoxine 磺胺间甲氧嘧啶 | ND | 0 | 0 | 0 |
Sulfamerazine 磺胺甲基嘧啶 | 0.919‒1.60 | 1.26 | 1.18 | 100 |
Sulfamethazine 磺胺二甲基嘧啶 | ND‒0.883 | 0.442 | 0.168 | 25.0 |
Sulfachinoxalin 磺胺喹恶啉 | ND | 0 | 0 | 0 |
Tracycline 四环素 | ND | 0 | 0 | 0 |
Oxytetracycline 土霉素 | ND | 0 | 0 | 0 |
Chlorotetracycline 金霉素 | ND | 0 | 0 | 0 |
Doxycycline 强力霉素 | ND | 0 | 0 | 0 |
Enrofloxacin 恩诺沙星 | ND | 0 | 0 | 0 |
Ciprofloxacin 环丙沙星 | ND | 0 | 0 | 0 |
Clenbuterol 克伦特罗 | ND | 0 | 0 | 0 |
Salbutamol 沙丁氨醇 | ND | 0 | 0 | 0 |
Cimaterol 西马特罗 | ND‒1.54 | 0.770 | 0.100 | 6.25 |
Ractopamine 莱克多巴胺 | ND | 0 | 0 | 0 |
Carbamazepine 卡马西平 | ND‒334 | 167 | 35.7 | 93.8 |
Caffeine 咖啡因 | 6.49‒214 | 110 | 110 | 100 |
Atrazine 阿特拉津 | ND | 0 | 0 | 0 |
Chloramphenicol 氯霉素 | ND | 0 | 0 | 0 |
Florfenicol 氟苯尼考 | ND | 0 | 0 | 0 |
表4 珠海市唐家湾镇地下水PPCPs检出情况
Table 4 Detection condition of PPCPs in groundwater in Tangjiawan Town, Zhuhai City
PPCPs种类 | 质量浓度范围/ (ng∙L−1) | 中间值/ (ng∙L−1) | 均值/ (ng∙L−1) | 检出率/ % |
---|---|---|---|---|
Sulfadimethoxine 磺胺间二甲氧嘧啶 | ND | 0 | 0 | 0 |
Sulfamethoxazole 磺胺甲恶唑 | ND‒58.6 | 29.3 | 5.51 | 81.0 |
Sulfamonomethoxine 磺胺间甲氧嘧啶 | ND | 0 | 0 | 0 |
Sulfamerazine 磺胺甲基嘧啶 | 0.919‒1.60 | 1.26 | 1.18 | 100 |
Sulfamethazine 磺胺二甲基嘧啶 | ND‒0.883 | 0.442 | 0.168 | 25.0 |
Sulfachinoxalin 磺胺喹恶啉 | ND | 0 | 0 | 0 |
Tracycline 四环素 | ND | 0 | 0 | 0 |
Oxytetracycline 土霉素 | ND | 0 | 0 | 0 |
Chlorotetracycline 金霉素 | ND | 0 | 0 | 0 |
Doxycycline 强力霉素 | ND | 0 | 0 | 0 |
Enrofloxacin 恩诺沙星 | ND | 0 | 0 | 0 |
Ciprofloxacin 环丙沙星 | ND | 0 | 0 | 0 |
Clenbuterol 克伦特罗 | ND | 0 | 0 | 0 |
Salbutamol 沙丁氨醇 | ND | 0 | 0 | 0 |
Cimaterol 西马特罗 | ND‒1.54 | 0.770 | 0.100 | 6.25 |
Ractopamine 莱克多巴胺 | ND | 0 | 0 | 0 |
Carbamazepine 卡马西平 | ND‒334 | 167 | 35.7 | 93.8 |
Caffeine 咖啡因 | 6.49‒214 | 110 | 110 | 100 |
Atrazine 阿特拉津 | ND | 0 | 0 | 0 |
Chloramphenicol 氯霉素 | ND | 0 | 0 | 0 |
Florfenicol 氟苯尼考 | ND | 0 | 0 | 0 |
PPCPs | Pearson相关性 | P值 (双侧显著性) |
---|---|---|
磺胺甲恶唑 | −0.140 | 0.518 |
磺胺甲基嘧啶 | 0.452 | 0.083 |
磺胺二甲基嘧啶 | 0.394 | 0.878 |
西马特罗 | −0.165 | ‒ |
卡马西平 | 0.839 | 0.000* |
咖啡因 | 0.540 | 0.061 |
表5 珠海市唐家湾镇地下水PPCPs总量与单个PPCPs的关系
Table 5 The relationship between total PPCPs and individual PPCPs of groundwater in Tangjiawan Town, Zhuhai City
PPCPs | Pearson相关性 | P值 (双侧显著性) |
---|---|---|
磺胺甲恶唑 | −0.140 | 0.518 |
磺胺甲基嘧啶 | 0.452 | 0.083 |
磺胺二甲基嘧啶 | 0.394 | 0.878 |
西马特罗 | −0.165 | ‒ |
卡马西平 | 0.839 | 0.000* |
咖啡因 | 0.540 | 0.061 |
图8 珠海市唐家湾镇地下水PPCPs聚类热图 SMX磺胺甲恶唑,SMR磺胺甲基嘧啶,SMZ磺胺二甲基嘧啶,CBZ卡马西平,CAF咖啡因
Figure 8 Clustering heat map of PPCPs in groundwater in Tangjiawan Town, Zhuhai City
图10 珠海市唐家湾镇地下水PPCPs与基本理化参数的相关性热图 SMX磺胺甲恶唑,SMR磺胺甲基嘧啶,SMZ磺胺二甲基嘧啶,CL西马特罗,CBZ卡马西平,CAF咖啡因;***表示P<0.001,**表示P<0.01,*表示P<0.05;n=16
Figure 10 Correlation heat map of PPCPs and physicochemical parameters of groundwater in Tangjiawan Town, Zhuhai City
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