land-sourced pollutant

例句：

1. 1. The city's air qualityhas been significantly improved since the implementation ofstricter land-sourced pollution controlmeasures.
   自从实施了更严格的土地来源污染控制措施以来，该城市的空气质量已经显著改善。
2. 2. The study found that the land-sourced pollutants in thesoil were mainly from agricultural runoff andindustrial wastewater.
   研究发现，土壤中的陆地来源污染物主要是农业径流和工业废水。
3. 3.To reduce the impact of land-sourced pollutants on the environment,it is essential to implement effective management strategies.
   为了减少陆地来源污染物对环境的影响，必须实施有效的管理策略。