Which measures ensure safe handling of hazardous gases on a site?

• A. Store gas cylinders near heat sources.
• B. Proper ventilation, gas analysis and storage, monitoring, no open flame; ensure compliance with TAG.
• C. Open flames allowed during checks.
• D. No monitoring or gas analysis.

Answer: (B)

The main idea is that safe handling of hazardous gases relies on controlling ignition sources and continuously aware management of the gas environment. Proper ventilation prevents buildup of flammable or toxic gases, reducing the risk of explosion or asphyxiation. Gas analysis tells you the actual concentrations of gases present, so you know when levels are safe or require action. Safe storage keeps cylinders secured, protected from heat and damage, and segregated to prevent reactions with other substances. Monitoring provides real-time detection and early warnings of leaks. Prohibiting open flames eliminates a common ignition source in areas where flammable gases might be present. Compliance with TAG ensures these procedures are followed consistently and meet established safety standards.

Storing cylinders near heat sources is dangerous because heat can raise cylinder pressure and increase ignition risk. Open flames during checks introduce an immediate ignition source in environments where flammable gases may be present. Lacking monitoring or gas analysis leaves you blind to actual gas levels, which can lead to undetected leaks or dangerous concentrations.