What document explains the hazards associated with toxic chemicals or substances on the job site?

The Material Safety Data Sheets (MSDS) is the correct choice because it provides comprehensive details about specific chemicals, including their hazards, handling instructions, safe use, and emergency measures in case of exposure or accidents. Each MSDS is designed to communicate the potential dangers of chemicals, such as toxicity, flammability, and environmental risks. This document is essential for ensuring that workers are informed about the risks associated with substances they may encounter on the job site, thus enabling them to take appropriate safety precautions to protect themselves and others.

In contrast, while a Workplace Safety Manual may contain general safety procedures and guidelines for various situations, it may not specifically address the intricate details of every hazardous material present. An Environmental Impact Report outlines the potential effects of a construction project on the environment but does not focus on the specifics of toxic substances at the job site. A Construction Safety Plan is more about overarching safety protocols for a construction project and does not typically delve into the specifics of chemical hazards as detailed in MSDS.