The ongoing Flint water crisis has once again brought the dangers of lead exposure back into the public consciousness. Though Flint’s crisis was triggered by compromised city water pipes, many homeowners don’t have to look any further than the walls of their home to find potential sources of lead poisoning.

Lead-based paint, once in widespread use in homes across the US, is the primary source of lead exposure in America. Given that the CDC states that “no safe blood lead level in children has been identified,” the presence of lead paint in homes presents a significant threat to child safety.

In this post from CertaPro Painters, Terry Ladd discusses the challenges of testing for lead-based paint and gives recommendations for homeowners concerned about the presence of lead.

Ladd, an EPA Certified Lead Inspector, centers his recommendations on two primary factors—the year the home was built and the condition of the paint. The older the home, the higher the chance that lead paint is present. However, Ladd writes that paint in good condition may be better off left alone since “removing it will create more of a hazard than letting it be.”

Read more from CertaPro about when it’s time to worry about lead exposure.