Our program has been working with Trail area families since 1989. Blood lead levels in Trail pre-school children have dropped significantly, from an average of 13.5 in 1989 to 2.3 micrograms per decilitre (µg/dL) in 2025. Year to year variability in blood lead levels is influenced by lead levels in community air, weather conditions, the group of children tested and where they live. The long-term downward trend continues to highlight the community’s progress in managing lead exposure in an area with an operating lead smelter.