Final answer:
Most affected by indoor fire smoke inhalation are people in developing countries due to the use of solid fuels like biomass and coal for cooking and heating without proper ventilation. Secondhand smoke also presents global health risks, with those living with smokers at increased risk of lung cancer and respiratory issues.
Step-by-step explanation:
People are most affected by indoor fire smoke inhalation in developing countries, where inefficient cooking and heating practices contribute to indoor air pollution. Respiratory infections and diseases such as lung cancer are prevalent among those who use solid fuels like biomass and coal, often in open fires or stoves without chimneys, in poorly ventilated spaces. This exposure to harmful pollutants disproportionately impacts women and children, who spend considerable time inside their homes. Secondhand smoke also poses significant health risks, especially in terms of lung cancer and respiratory infections in nonsmokers, and is a critical concern worldwide.
Children exposed to secondhand smoke encounter numerous health challenges, including increased incidences of lower respiratory infections, ear infections, asthma, and a higher risk of sudden infant death syndrome (SIDS). To improve indoor air quality and mitigate the risks associated with indoor pollution, awareness and better practices are crucial. The use of clean fuels, proper ventilation, and designated smoking areas can significantly reduce the burden of disease from indoor air pollution.