Lead in floor dust can be an indication of house contamination with lead. If you were diagnosed with lead poisoning, test you house first, your indoor dust may be the source. Your sample will be tested by a CALA accredited laboratory in Ontario, Canada using acid digestion and Ionized Coupled Plasma (ICP) spectroscopy. The test results will be sent to you by email.

There is no law or guideline in Canada, that would specify acceptable limit for Lead in floor dust.  Review of available scientific literature gives  the the following threshold levels for Lead, which are provided as a reference only.

70 mg/kg – recommended threshold level of Lead in agricultural soil in Canada

140 mg/kg – recommended level of Lead in soil in Canadian parks

250 mg/kg – 90% of houses in Canada have lead concentration below this level

400 mg/kg – EPA limit for Lead in soil on children’s playground in US.

To test your indoor dust, take a full tablespoon of dust from your vacuum cleaner and place it into a Ziploc bag. Do not mix dust from different rooms in one bag. Please make sure you check the sampling and shipping instructions below.