What is the recommended method to contain liquid spills of dangerous chemicals?

The recommended method to contain liquid spills of dangerous chemicals is to dike the liquid spills. Diking involves creating a physical barrier, often from materials such as earth, sand, or specially designed spill containment products, to prevent the spread of hazardous materials. This method is effective for isolating and containing the spill, limiting environmental contamination and reducing the risk of exposure to personnel. By containing the spill in a confined area, emergency response teams can manage the situation more effectively, ensuring that the spill does not migrate to drains or other sensitive areas, which could lead to further environmental impact.

Other methods, such as using absorbent materials, can be effective in cleaning up spills after they are contained, but diking is the primary step to preventing the immediate risk associated with the spill. Rinsing with water is not advisable since it can spread the hazardous substance, and leaving spills to evaporate is dangerous as it poses inhalation risks and increases the possibility of environmental contamination.