> There are Many things that cause lung cancer other than smoking. Radon is the #2 cause of lung cancer in the US. There are high levels of radon in about 1/15

> There are Many things that cause lung cancer other than smoking. Radon is the #2 cause of lung cancer in the US. There are high levels of radon in about 1/15 US homes. https://www.cdc.gov/cancer/lung/basic_info/risk_factors.htm https://www.cdc.gov/cancer/lung/basic_info/risk_factors.htm