The mission of the U.S. Environmental Protection Agency (EPA) is to "to protect human health and the environment."
The EPA has published some reports discussing the health effects of mold and indoor air pollution but very little progress has been made.
From a 1989 report by the U.S. EPA:
“Many costs of indoor air pollution have not been calculated. Nevertheless, because of the large numbers of people and buildings potentially affected, as well as the wide range of effects for which there is an economic cost component, it is reasonable to conclude the aggregate costs of indoor air pollution amount to tens of billions of dollars per year.”