Tetanus. 1  Tetanus, commonly called lockjaw, is caused by a bacterium that is mostly present in soil, manure, and in the digestive tracts of animals and humans. 2  Tetanus is not contagious and cannot be transmitted from person to person. Tetanus, commonly called lockjaw, is caused by a bacterium that is mostly present in soil, manure, and in the digestive tracts of animals and humans.
Sources of Lead. A child's environment is full of lead. Children are exposed to lead from different sources (such as paint, gasoline, solder, and consumer products) and through different pathways (such as air, food, water, dust, and soil). Although there are several exposure sources, lead-based paint is the most widespread and dangerous high-dose source of lead exposure for young children. Sources of Lead Artificial Turf
In the general population, lead may be present in small but hazardous concentrations in food, water, and air. Lead poisoning from deteriorating old paint is the primary source of elevated blood lead levels in children. Children under the age of six are at risk of developing cognitive health effects even at very low blood lead levels.