Qinglin Jing’s research while affiliated with South China Agricultural University and other places

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Publications (2)


Spatiotemporal characterization of heavy metal and antibiotics in the Pearl River Basin and pollutants removal assessment using invasive species-derived biochars
  • Article

April 2023

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73 Reads

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29 Citations

Journal of Hazardous Materials

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Xuening Lu

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Qinglin Jing

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[...]

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Jiaen Zhang

Rivers play essential roles in human civilization, while anthropogenic activities have deteriorated their resilience and functionalities. Combating contamination is one of the priorities for building the river's resilience and providing safe water and habitats for livelihoods, wildlife preservation, and food production. We collected 174 water and sediment samples from the upstream to the estuary of the Pearl River (PR), characterized the heavy metal and antibiotics contamination levels, and analyzed the spatiotemporal distribution by compiling historical datasets extracted from published research papers and governmental documents. We also assessed the feasibility of removing PR water heavy metals and antibiotics using biochars derived from two invasive plants, Bidens pilosa L. and Lantana camara. According to our findings, heavy metals and antibiotics in water and sediment increased towards the downstream region of the Pearl River Delta (PRD). The water and sediment samples obtained from the Dongguan and Shenzhen regions exhibited the most elevated levels of heavy metals, whereas the samples from the Huizhou region demonstrated the highest levels of antibiotics. Compared with previously published PRD sediment heavy metals (1976–2011) and antibiotics contamination data (2006–2017), we found that some heavy metals and all measured antibiotics contents in sediment substantially reduced (80–100%). Cu, Zn, Cr, and As significantly polluted the sediment in PRD. Shenzhen had the highest Index of geo-accumulation (Igeo) for Cu, Zn, and Cr, while Zhaoqing had the highest Igeo for As. The dominant antibiotics were Ciprofloxacin, Doxycycline, Norfloxacin, Ofloxacin, Oxytetracycline, and Tetracycline. Invasive plant-derived biochars showed high antibiotic removal capacity but failed to reduce most PR water heavy metals since these invasive plants are potential heavy metal hyperaccumulators. The spatial distribution of heavy metal and antibiotics concentration/content in water and sediment samples is primarily affected by anthropogenic activities such as industrialization, aquaculture, pharmaceutical, and agricultural practice. Our study provides insights into the extensive freshwater watersheds' decontamination and green policymaking.


Citations (2)


... The application of solid waste to agricultural fields further intensifies the contamination of these antibiotics in runoff [8,9]. Seasonal fluctuations and urban development have a profound effect on the distribution of antibiotics in watersheds, as demonstrated by the different antibiotic resistance profiles of the local ecology [10][11][12]. The antibiotic resistance of aquatic microorganisms can reach malleable, sub-stable, or stable stages due to the continuous release of antibiotics from human activities in the watershed basin [13,14]. ...

Reference:

Ecological Response of Enzyme Activities in Watershed Sediments to the Reintroduction of Antibiotics
Spatiotemporal characterization of heavy metal and antibiotics in the Pearl River Basin and pollutants removal assessment using invasive species-derived biochars
  • Citing Article
  • April 2023

Journal of Hazardous Materials

... The number of snails was selected based on the optimal growth density of golden apple snails, which has also been a commonly used density in experiments [33]. The salinity levels mentioned above relied upon the environmental conditions previously documented in paddy soils [32], the tolerance of snails to salinity [35], and soil response to changes in salinity [28]. A salinity concentration of 2‰ was utilized in this research to mimic the present salinity levels of the soil, whereas a salinity concentration of 5‰ was selected to investigate the probable impacts of future increases in soil salinity. ...

Responses of survival, growth , and feeding of the invasive golden apple snail ( Pomacea canaliculata , Lamark 1822 ) to salinity stress
  • Citing Article
  • May 2022

Freshwater Science