|
Advances in Environmental Research Volume 13, Number 1, March 2024 , pages 1-13 DOI: https://doi.org/10.12989/aer.2024.13.1.001 |
||
|
Research on the characteristics and risk assessment of antibiotic pollution in Chongqing |
||
Zhang Wenbin, Wang Jian, Zhao Jin and Zhang Xiu
|
||
| Abstract | ||
| In order to understand the pollution characteristics and risk levels of typical antibiotics in the water environment of Chongqing, this paper selected several major water environments that more prominently affected by human activities and poultry breeding pollution as the research objects. Solid phase extraction/high-performance liquid chromatography tandem mass spectrometry was used to determine 20 types of antibiotic residues with high detection rate and high dosage in water, and the concentration and composition characteristics of antibiotics were analyzed, And ecological risk assessment was conducted on antibiotics using the Risk Quotient Method (RQ). The results showed that antibiotics were detected to varying degrees in the water environment of the city, with the detection rates ranging from high to low in order from hospital wastewater>sewage treatment plants> poultry breeding enterprises>surface water, ranging from 24.3% to 87.5%. Compared with its counterparts in other regions, the concentration of antibiotics in the water environment of Chongqing is at a medium level. Except that the RQ value of sulfamethoxazole in each water body is higher than 1.0, indicating a high risk. On the other hand, the RQ value of oxytetracycline, tetracycline, erythromycin and roxithromycin ranges from 0.1 to 1.0, showing a medium risk, and the rest is at a low risk level. Evaluate the health risks of antibiotics in different water sources based on their entropy of risk to human health. The results showed that except for tetracyclines, sulfonamides, and chloramphenicol, which have low human health risks, other antibiotics have no potential health risks to human health. | ||
| Key Words | ||
| antibiotics; ecological risk assessment; health risk; pollution characteristics; surface water | ||
| Address | ||
| Zhang Wenbin, Wang Jian, Zhao Jin and Zhang Xiu: Ecological and Environmental Monitoring Center, Chongqing 401147, China | ||
