is cigarette smoke worse than weed Measuring PM2.5 concentrations from secondhand tobacco vs. marijuana in 9 rooms of a detached 2-story house Many people think cannabis smoke

Many people think cannabis smoke is harmless. Here's how how that belief can put health at risk PBS News Are There Risks From Secondhand Marijuana Smoke? Early Science Says Yes Houston Public Media Many Americans wrongly believe exposure to marijuana smoke is safer than tobacco, study finds CNN Marijuana and tobacco are often compared as better or worse, but when it comes to lung health, smoke itself is the problem. Burning any substance releases toxic chemicals that irritate and damage Is Vaping Marijuana Safer Than Smoking? Smoking and High Blood Pressure: The Dangerous Link

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