Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand smoke and secondhand aerosol Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health Is Secondhand Vaping Something to be Concerned About? 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,