Blood lead levels vary year to year depending on where the child is spending their time (home, daycare, and outdoor play), their behaviour (crawling, hand to mouth activity) and their nutritional status (wide range of healthy foods, adequate iron stores). Blood lead testing ensures that children with elevated blood lead levels are identified and provided follow-up care. As a community, blood lead testing also helps monitor our overall progress in reducing lead exposure in the community. As lead can come from many sources, even if your home received soil management, you should continue to test your children’s blood each year.