Overburdens can be toxic.Logical formLearned from2 sentences. A medium can be toxic.Logical formLearned from2 sentences. Software can be toxic.Logical formLearned from2 sentences. A radioactive dust can be toxic.Logical formLearned from2 sentences. Conditions can be toxic to ecosystems.Logical formLearned from2 sentences. And/or can be toxic.Logical formLearned from2 sentences. Toxic substances may be labelled.Logical formLearned from2 sentences. Chemicals can be toxic to forms of life.Logical formLearned from2 sentences. A legacy can be constituted-of-or-filled-with toxic waste.Logical formLearned from2 sentences. Toxic metals may undergo a mobilization.Logical formLearned from2 sentences. Some toxic substances may persist in an environment.Logical formLearned from2 sentences. Risks may be posed by toxic substances.Logical formLearned from2 sentences. (Health threats) may be posed by toxic substances.Logical formLearned from2 sentences. Plans can be for toxic substances.Logical formLearned from2 sentences. Toxic substances may be found in effluents.Logical formLearned from2 sentences.