Occurrence, landscape impact, and risk assessments of pesticides in a major river basin of a tropical island, South China

Key Points

• Pesticides are commonly found in the river basin, potentially affecting local ecosystems.
• The risk assessment reveals significant environmental impacts from pesticide usage in the area.
• Comprehensive analysis of water samples identifies the distribution of various pesticides in the river.
• Environmental monitoring is essential to mitigate risks associated with pesticide pollution in tropical regions.