What is the focus of "environmental toxicity"?

The focus of "environmental toxicity" centers on the study of the effects of chemical pollutants on ecosystems. This area of research examines how various chemicals, including heavy metals, pesticides, and industrial wastes, impact living organisms within different environments, such as soil, water, and air. Understanding these effects is crucial for assessing the health of ecosystems, determining the ecological balance, and implementing effective regulations to mitigate pollution.

For instance, environmental toxicity research can help identify how pollutants affect the reproduction, survival, and behavior of wildlife, as well as the overall health of habitats. This knowledge is important when considering the long-term implications of pollution not only for individual species but also for biodiversity and ecosystem services as a whole.

The other options, while related to the broader field of toxicology, do not specifically encapsulate the essence of environmental toxicity, which is fundamentally concerned with the interaction between pollutants and ecological systems.