Fight Aging! Newsletter, September 18th 2017
In this study, researchers put some numbers to the correlation, and improve on previous attempts to rule out wealth and other effects as significant contributing causes.
A study finds that a Chinese policy is unintentionally causing people in northern China to live 3.1 years less than people in the south, due to air pollution concentrations that are 46 percent higher. These findings imply that every additional 10 micrograms per cubic meter of particulate matter pollution reduces life expectancy by 0.6 years. The elevated mortality is entirely due to an increase in cardiorespiratory deaths, indicating that air pollution is the cause of reduced life expectancies to the north. "These results greatly strengthen the case that long-term exposure to particulates air pollution causes substantial reductions in life expectancy."
The study exploits China's Huai River policy, which provided free coal to power boilers for winter heating to people living north of the river and provided almost no resources toward heating south of the river. The policy's partial provision of heating was implemented because China did not have enough resources to provide free coal nationwide. Additionally, since migration was greatly restricted, people exposed to pollution were generally not able to migrate to less polluted areas. Together, the discrete change in policy at the river's edge and the migration restrictions provide the basis for a powerful natural experiment that offers an opportun...
Source: Fight Aging! - Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
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