RESUMO
Organophosphorus pesticides (OPPs) are widely used in agricultural production due to their chemical stability, high efficiency and low cost. It should be emphasized that OPPs can seriously harm aquatic organisms after entering the water environment through leaching and other ways. To this end, this review combines a new method to quantitatively visualize and summarize information on developments in this field to review the latest progress in OPPs toxicity, propose scientific trends and research hotspots. Among all countries, China and the United States have published a large number of articles and played a leading role. Based on the detection of co-occurrence keywords, it is emphasized that "OPPs cause oxidative stress in organisms", which reflects that the main factor of OPPs toxicity is the occurrence of oxidative stress. Researchers also focused on studies involving AchE activity, acute toxicity and mixed toxicity. This reveals that OPPs mainly affect the nervous system, and higher organisms are more resistant to the toxic effects of OPPs than lower organisms due to their strong metabolic capacity. As for the mixed toxicity of OPPs, most OPPs have synergistic toxic effects. Moreover, the analysis of keyword bursts revealed that the study of OPPs on the immune response of aquatic organisms and the effect of temperature on toxicity will become new research trends. In conclusion, this scientometric analysis can provide a scientific basis for improving the aquatic ecological environment and rationally using OPPs.