A study by a Harvard Medical School researcher reports that children under 18 years of age in the United States who hold part-time jobs are at some risk of toxic exposure while on the job. The researcher recommends that parents play a more active role in ensuring the safety of their child in the workplace and that the government carefully monitor adolescent occupational injuries. The study analyzed more than 300,000 reports of occupational toxic exposure to teens between 1993-1997.