When ever I walk across someone smoking, I usually would just hold my breathe, but I've heard that the smoke particles can cling onto your clothes etc. But when I'm walking across them, it's only very brief exposure and I try to maintain my distance. Heavy metals such as lead and cadmium are also in cigarettes, and is present in the smoke, would that be able to cling onto my clothes? I've developed some sort of anxiety whenever I walk across someone smoking, and I'll think of all the bad effects of smoking and how it will affect me... Anyone who is knowledgeable, please help me out... 😭