What is the maximum amount of lead that replacement soil can test for according to the EPA?

The maximum amount of lead that replacement soil can test for according to the EPA is 400 parts per million. This standard is critical to ensure that the soil being used is safe and does not pose a health risk, particularly in residential areas where children may play and be more susceptible to lead exposure.

Understanding the appropriate limits for lead content in soil is essential for environmental safety and public health. The EPA guidelines are established based on extensive research into the harmful effects of lead ingestion, particularly for young children, and aim to minimize potential health risks. By setting the maximum concentration at 400 parts per million, the guidelines help ensure that the soil is suitable for use in various settings, including gardens, playgrounds, and other areas where human contact is frequent.

The other options do not reflect the EPA's established criteria, which emphasizes the necessity of adhering to the 400 parts per million standard to protect public health and the environment effectively.