Lead toxicity among traffic wardens: a high risk group exposed to atmospheric lead, is it still a cause for concern?

Background: Traffic policemen are identified to be at a higher risk of exposure to air pollution and its contaminants such as lead. A study done prior to the introduction of unleaded petroleum in Sri Lanka revealed a mean blood lead level of 53.07 μg/dL, which was well above the Center for Disease Control defined acceptable safe levels.