E cigarettes draw fans as states and FDA question safety Burgoynes We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact DYK Incorrectly disposing of electronic cigarettes or vape pens, which contain nicotine and lithium ion battery waste, can have serious environmental impacts, present public health and safety issues, and lead to regulatory