What is the maximum allowable concentration of benzene?

The maximum allowable concentration of benzene in various contexts, such as occupational exposure, environmental health standards, and guidelines set by agencies like the Occupational Safety and Health Administration (OSHA) or the Environmental Protection Agency (EPA), is crucial for ensuring safety and minimizing health risks. The correct choice of 0.1 parts per million (ppm) aligns with widely accepted regulatory limits regarding exposure to benzene.

Benzene is a known carcinogen, and prolonged exposure to even low concentrations can pose significant health risks, including blood disorders and increased cancer risk. Thus, regulatory bodies have established strict thresholds to protect public health, leading to the determination that 0.1 ppm is the benchmark for permissible levels in many scenarios. Following these guidelines helps to prevent adverse health effects in workers and the general population.