Citation: | Yi Huang, Xuan Dong, Zhi-yuan Ma, Xi-zhao Tian, Zhu Rao, 2025. Characteristics and ecological risk assessment of antibiotics and hormones in landfill waters, China Geology, 8, 598-606. doi: 10.31035/cg20250076 |
Antibiotics, as emerging pollutants, pose significant risks to aquatic ecosystems and human health by disrupting the endocrine systems of aquatic organisms and affecting ecosystem stability through food chain enrichment. In a study conducted in Hebei Province, China, liquid chromatography-triple quadrupole-linear ion trap mass spectrometry (LC-TQ-LIT-MS) was used to analyze 90 different antibiotics in 31 water samples, including surface water, groundwater, and waste leachate from three urban landfills. This analysis included hormones, broad-spectrum antimicrobials, macrolides, tetracyclines, β-lactams, sulfonamides, and quinolones. The study’s results indicated that quinolones, β-lactams, and macrolides were the most frequently detected substances in the landfills. It is noteworthy that the concentrations of these antibiotics varied significantly among different cities, reflecting local production and living characteristics. The results of the tests showed that the concentration of amoxicillin was 1171 ng/L in surface water, 811 ng/L in groundwater, and 1926 ng/L of ciprofloxacin in waste leachate. Furthermore, a consistent pattern was observed between the compounds present in the leachate, groundwater, and surface water at the three sites. Risk assessments revealed that the ecological risk was higher for surface water and lower for groundwater.
This study is the first to systematically analyze the pollution status of antibiotics and hormones in the water around the landfill in Hebei Province, which not only fills the blank of groundwater-related research in Hebei Province but also provides key data support and theoretical basis for local groundwater hydrological and environmental detection and pollution prevention.
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Map of sampling sites in the three cities.
Total ion current diagram (TIC) of 90 antibiotics at 50 ng/L.
Comparison of the distribution of antibiotics and hormones in surface water of three cities.
Comparison of the distribution of antibiotics and hormones in groundwater of three cities.
Risk assessment cluster diagram.