Repositorio
Institucional

Bai, Junhong

Zhang, Ling

Zhang, Kegang

Wang, Yaqi

Xiao, Rong

Campos, Marco

Acuna, Jacquelinne

Jorquera, Milko A.

Occurrence, bioaccumulation and ecological risks of antibiotics in the water- plant-sediment systems in different functional areas of the largest shallow lake in North China: Impacts of river input and historical agricultural activities

ELSEVIER

SCIENCE OF THE TOTAL ENVIRONMENT

en

Antibiotics are widely used and ubiquitous in the environment, which in turn poses potential threat to human health. However, the effects of agricultural activities and river input on the fate and ecological risks of antibiotics in shallow lake are still poorly understood. Surface water, overlying water and pore water, sediments and aquatic plant samples in the historical planting subarea (PA), historical aquaculture subarea (AU), inflow subarea (IW), discharge subarea (DC), and conservation subarea (CK) of Baiyangdian Lake were collected and analyzed. Our results revealed that the total antibiotic concentrations ranged from 85.33 ng/L to 1631.47 ng/L in waters and from 66.90 ng/g to 177.03 ng/g in sediments. Generally, the total antibiotic concentrations introduced by planting activity in surface water, overlying water and sediments were higher and the levels of total antibiotics in pore water were more affected by river input. In addition, three quinolones (QNs) and two tetracyclines (TCs) were dominant antibiotics in almost five subareas. The pseudo-partitioning coefficient kd(pw) and bioaccumulation factor (BAF) of antibiotics varied according to the ef-fects of river input and historical agricultural activities. The ecological risk (RQ) of antibiotics from agricultural activ-ities was higher than that from river input. The norfloxacin (NOR) in pore water showed high RQ, which contributed to a large proportion (>50 %) of the combined ecological risks ( n-ary sumation RQs) except for surface water. Therefore, NOR should be used as the primary ecological risk control index for antibiotic contamination management in the BYD. n-ary sumation RQs showed high risk in water in the five subareas. This study can act as a reference for governments to formulate effective man-agement strategies for protecting the ecological health of lakes.

artículo original

Acknowledgments This study was financially supported by Projects of International Coop-eration and Exchanges NSFC-ANID Fund (number 51961125201 in China and code NSFC190012 in Chile) . Partial support was also provided by the Fundamental Research Funds for the Central Universities and the Interdis-ciplinary Research Funds of Beijing Normal University.

Agradecimientos Este estudio contó con el apoyo financiero del Fondo de Proyectos de Cooperación e Intercambios Internacionales NSFC-ANID (número 51961125201 en China y código NSFC190012 en Chile). También proporcionaron apoyo parcial los Fondos de Investigación Fundamental para las Universidades Centrales y los Fondos de Investigación Interdisciplinarios de la Universidad Normal de Beijing.

10.1016/j.scitotenv.2022.159260

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Antibiotics

Historical agricultural activities

River input

Shallow lake

Ecological risks

HUMAN HEALTH-RISK

VETERINARY ANTIBIOTICS

RESISTANCE GENES

WASTE-WATER

SOILS

OXYTETRACYCLINE

IRRIGATION

TRANSPORT

RESIDUES

Ciencias Ambientales

Antibióticos

Actividades agrícolas históricas

Aportes fluviales

Lago poco profundo

Riesgos ecológicos

RIESGO PARA LA SALUD HUMANA

ANTBIÓTICOS VETERINARIOS

GENES DE RESISTENCIA

AGUAS RESIDUALES

SUELOS

OXITETRACICLINA

RIEGO

TRANSPORTE

RESIDUOS

Occurrence, bioaccumulation and ecological risks of antibiotics in the water- plant-sediment systems in different functional areas of the largest shallow lake in North China: Impacts of river input and historical agricultural activities

artículo original

version publicada

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metadata

metadata

ANID NSFC190012

NFSC 51961125201

WOS:000874765700004