What is the first step in controlling lead in exterior dust?

The correct approach to controlling lead in exterior dust involves using a HEPA vacuum to effectively remove lead-contaminated dust from surfaces. HEPA (High Efficiency Particulate Air) vacuums are specifically designed to trap very small particles, including lead dust, ensuring that they are not released back into the environment during the cleanup process. This is crucial because lead dust can pose serious health risks, particularly to children and pregnant women.

Using a HEPA vacuum is an essential initial step as it helps to mitigate risks of exposure before any further remediation or control measures are implemented. Other methods, such as simply covering the ground with rocks or applying sod, may offer temporary solutions or aesthetic improvements but do not directly address the underlying contamination. Similarly, while a standard vacuum cleaner may remove visible debris, it is not equipped to filter out lead particles effectively, which could lead to further dispersion of contaminants rather than their removal. Thus, the use of a HEPA vacuum is critical for ensuring a safe and effective lead abatement process.