Secondhand smoke and e cigarette aerosol exposure in dogs and cats: A scoping review with implications for smoking cessation among pet owners Effects of Secondhand Smoke on Health and Pets Second hand Smoke Healthy Pets, Healthy Families Hub Veterinary Public Health LAC DPH One of our customers has had first hand experience of this recently. One cigarette butt can contain enough nicotine to poison a dog. Especially puppies and smaller breeds. What can happen