Industrialization, indoor and ambient air quality, and elderly mental health

The health risks from indoor and ambient air pollution create a considerable burden to global economic development and health, especially in economies within an aging society. Previous research has established the adverse effects of air pollution on health. However, most studies do not focus on the simultaneous effect of indoor and ambient air pollution nor its health risks to the older population. This study examines the impact of exposure to both indoor and ambient air pollution for the same individuals over time on mental health by using a nationally representative longitudinal survey for middle-aged and elderly individuals in China. We find that both indoor and ambient air pollution have an adverse effect on elderly mental health and significantly increases the likelihood of having depressive symptoms. We provide evidence that the effect of indoor and ambient air pollution is associated more with less educated and females.