Testing* Surfaces for Lead Containing Dust
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Background: Lead-containing dust is a primary cause of lead poisoning in children. Actively deteriorating paint (peeling, chipping, or chalking), or renovation work on lead-painted surfaces can create dangerous levels of lead paint dust. LeadCheck® Swabs can be used to screen for the presence of lead-containing dust on any solid surface. They are especially useful for detecting dust remaining after a clean-up. Dust sequesters into cracks and crevices. LeadCheck® Swabs effectively screen the cracks and crevices and can detect remaining lead contamination. Method: Activate a LeadCheck® Swab according to the instructions that come with the kit. While squeezing gently to keep the LeadCheck® reagent at the tip of the swab, rub the surface being tested for dust. Rub for 15 – 30 seconds, checking for color change on the swab. Recommendation: Test several areas. Lead dust may not be evenly distributed. Interpretation of Results: If the swab turns pink within 15-30 seconds, lead-containing dust is present. Clean the surface using a household detergent and retest the surface with LeadCheck® Swabs. Repeat this procedure until a negative LeadCheck® result is obtained. Precaution: Dirty surfaces can coat the Swab tip with a dark film, obscuring color development at the tip. When this happens, clean the surface and test again using a new LeadCheck® Swab *LeadCheck® Swabs are a versatile and sensitive screening tool for the detection of lead on any surface. This applications note provides a suggested method to allow testing for a specific application. Additional information and help are available by calling 800-262-5323 or 508-651-7881.