Lead smelters contribute to several environmental problems, especially raised lead levels in the blood of some of the town population. The problem is particularly significant in many children who have grown up in the area. A state government project addressed this. Nyrstar plans to progressively reduce lead in blood levels such that ultimately 95% of all children meet the national goal of 10 micrograms per decilitre. This has been known as the tenby10 project. Community lead in blood levels in children are now at less than half the level that they were in the mid 1980s.