How can lead-contaminated soil be addressed?

Addressing lead-contaminated soil effectively is crucial for minimizing health risks associated with lead exposure. The most reliable method involves removal or capping with clean fill material. This method not only ensures that the contaminated soil is either removed from the site or that it is effectively isolated, preventing direct contact with individuals and wildlife.

Capping with clean fill material creates a barrier that reduces the risk of exposure from lead particles. This approach is important in residential areas or where children may play, as it provides a safe surface and can also improve environmental aesthetics.

While planting trees may contribute to environmental benefit, it does not directly address the lead contamination. Covering with plastic sheets can offer temporary containment but is not a long-term solution, as it does not provide a permanent barrier and may lead to other issues such as water accumulation. Adding fertilizer does not mitigate lead contamination and could potentially complicate matters by introducing additional chemicals into the ground. Thus, the removal or capping method is recognized as the most effective strategy for managing lead-contaminated soil.