Which of the following qualifies as an unreasonable interference in nuisance law?

In nuisance law, unreasonable interference typically refers to actions that significantly affect another person's use and enjoyment of their property. The release of stored toxic waste on neighboring property is a clear example of unreasonable interference, as it poses a serious threat to both the environment and the health of the neighbors. This kind of action can lead to contamination and long-lasting harm to the nearby community, thereby disrupting their ability to enjoy their own properties safely.

The other choices illustrate activities that do not constitute an unreasonable interference. For instance, the absence of noise from a neighbor indicates a peaceful environment, which would not be deemed a nuisance. Similarly, regular maintenance of a public park serves the community and is generally seen as a positive activity, contributing to the enjoyment of public spaces rather than detracting from it. Planting hedges on one’s own property is typically a permissible action, as private landowners are generally allowed to landscape their properties as they see fit, provided it does not infringe on the rights of neighboring properties. Therefore, the release of toxic waste stands out as the only option that clearly qualifies as an unreasonable interference under nuisance law.