Answer:
I found some information on the chemicals found in bug spray and tobacco smoke. According to a report by Live Science, household bug sprays contain pyrethroids, which are compounds that are structurally similar to pyrethrins, natural insecticides produced by chrysanthemum flowers. Pyrethroids can kill insects by interfering with nervous system signaling. They work by opening up sodium channels on the nerves, which leads to repetitive-type firing and can be lethal to insects. At high doses, pyrethroids can affect the human nervous system and cause symptoms such as numbness, tingling, twitching, tremors, seizures, and coma 1.
Tobacco smoke contains a variety of harmful chemicals such as formaldehyde, arsenic, and heavy metals like cadmium, lead, and nickel. It also contains N-Nitrosonornicotine (NNN), which is known to cause cancer in animals and has been linked to an increased risk of cancer among humans 2.
I hope this helps!