Passive smoking (secondhand smoke) is extremely harmful to children, especially infants. Because infants breathe faster than adults, they inhale more smoke toxins per minute. This exposes them to dangerous chemicals like nicotine, Secondhand smoke and secondhand aerosol Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Secondhand smoke may be a substantial contributor to lead levels found in children and adolescents, new study finds Secondhand smoke and secondhand aerosol