One of the most common ways of our past is when a child eats or chews on an object that has lead based paint chips in or on its surface. Parents can easily prevent this from happening by reading labels or buying objects which are not painted. Another way in a child can be affected is by drinking water that comes from lead pipes. These pipes can be easily replaced in most situations. The build up of lead in the soils another problem.
Bare soil can easily contain lead from car exhaust, paint peeling, and near by industries pollution.
Breathing workplace air has been a problem in past also. When parents are not aware of the near by power plants or industries, which could be letting off lead into the air. It can lead to problems. So its always best that you know the area really well that you child is playing in. Another incident that occurred here recently in North Carolina was a young child was discovered having lead poison after eating some pool-cue chalk.