Permanent scarring and other long-term effects can occur just seconds after chemical exposure.

The statement is true because certain chemicals can cause immediate and severe effects upon exposure, resulting in permanent scarring or long-term health complications. For example, highly corrosive substances, strong acids, and some alkalis can inflict damage on skin or eyes very rapidly. The initial contact may lead to burns or other injury that does not heal properly, potentially resulting in scarring or even loss of function. In addition, specific chemicals can initiate allergic reactions or other health issues that manifest soon after exposure. Therefore, it's important for workers in hazardous environments to understand the potential for immediate, lasting harm from chemical exposures and to follow safety protocols to minimize risks.