Which pesticide formulations are the most hazardous?

Fumigants are considered the most hazardous pesticide formulations primarily due to their ability to penetrate surfaces and disperse in gaseous form, which can present significant inhalation risks to humans and non-target organisms. They are designed to kill pests by vaporizing and evenly distributing within a confined area, making them highly effective but also considerably dangerous. The health risks associated with inhalation, including potential acute or chronic toxicity, underscore their classification as hazardous materials.

While other formulations may pose risks, fumigants are unique in their volatility and method of operation, which increase the potential for exposure. This characteristic requires strict handling protocols and safety measures to mitigate risks to applicators and bystanders.