Tobacco carcinogens were found in the urine of 90% of children who lived in a home where at least one parent smoked, a new study has found.
She noted that levels of carcinogens found in the urine of adult nonsmokers who are exposed to secondhand smoke are 1 to 5% that of smokers.
There was a direct correlation between the number of cigarettes smoked each day by adults in a home and the level of tobacco carcinogens in the children.
There was a link between children's exposure to secondhand smoke in the home and lower socioeconomic status, employment and parental education.
Black children had the highest levels of tobacco carcinogens in their urine, even if their parent or parents smoked comparatively less. This suggests that black children metabolise tobacco chemicals differently.