This text is missing some spaces, please add them: Theythoughttheyweresafe.
They thought they were safe.

This text is missing some spaces, please add them: Exposuretoconcentrationsashighas5mgl-1resultedinnotoxicityinfivespeciesevenafter14days.
Exposure to concentrations as high as 5 mg l-1 resulted in no toxicity in five species even after 14 days.

This text is missing some spaces, please add them: SteelRunnercanbereplacedwithSoilRunneronbothnewerandolderTopDownmodels.
SteelRunner can be replaced with SoilRunner on both newer and older TopDown models.