Which of the following actions can help mitigate lead contamination in waste?

Recycling lead acid batteries is an effective action for mitigating lead contamination in waste. Lead acid batteries contain significant amounts of lead, which can pose serious environmental and health risks if not properly managed. By recycling these batteries, the lead is recovered and reused in the manufacturing of new batteries or other products, significantly reducing the amount of lead that could otherwise leach into the environment from discarded batteries. This process not only helps prevent lead pollution but also supports sustainable practices by conserving resources and reducing the need for new lead mining.

In contrast, the other options do not have the same beneficial impact on lead contamination. Burning municipal waste can release harmful toxins into the air, and while it may reduce the volume of waste, it does not specifically address lead contamination. Landfilling plastic waste does not prevent lead contamination and can contribute to soil and groundwater pollution. Lastly, incinerating organic materials may reduce waste volume as well, but it also does not specifically mitigate lead contamination and can produce additional waste products that require management.