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Thirdhand Smoke Resource Center Protecting Californians The image of blackened lungs isn't a prop. It's the harsh reality of smoking. While healthy lungs are a pinkish color, cigarette smoke causes permanent, heavy staining from tar and other particulate How Do Cigarettes Cause Cancer? Memorial Sloan Kettering Cancer Center What is Tar from Smoking? Tar from Cigarette Smoke Stock Image C022 0903 Science Photo Library Compound Interest: The Chemicals in Cigarette Smoke & Their Effects

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