%0 conference lecture
%@ 
%A Bento, C., Naumann, T., Wittmann, A., Tang, J., Zhen, X., Liu, L., Ebinghaus, R.

%D 2021
%J EGU General Assembly 2021

 
%R doi:10.5194/egusphere-egu21-13296
%T River-Sea Systems: Spatial and temporal occurrence of Neonicotinoids, Glyphosate and related transformation products in the Chinese Bohai Sea and 36 surrounding Rivers
%U https://doi.org/10.5194/egusphere-egu21-13296
 
%X In conclusion, the ubiquitous presence of acetamiprid and the high concentrations and detection frequencies of AMPA in the sampled waters suggest a high persistence and stability of these compounds in surface waters. Therefore, these compounds may accumulate in aquatic/marine environments and may pose a risk to aquatic/marine organisms. The Bohai and Laizhou Bays presented the highest contamination status, to where most contaminated rivers were flowing, indicating that riverine discharges are important contributors to the pollution status of the marine environment. The higher detection frequencies and concentrations of the transformation products of imidacloprid, fipronil and glyphosate in the marine environment indicate the rapid degradation of their parent compounds during their “journey” from the contaminated rivers to the Bohai Sea. Since evidence shows that these transformation products have similar or even higher persistence and toxicity to non-target organisms, it is important to further monitor these compounds in the marine environment.