Conclusion
We have identified a number of opportunities
to lower noise exposures and ultimately
improve public health while additional
research is being conducted. Updated
national-level estimates of individual noise
exposures are needed; our use of 1981 U.S.
EPA data introduces a substantial amount
of uncertainty into our estimates and highlights
the need for an updated national survey
of noise exposures in the United States.
Although prevention of different health
effects will require additional research to
identify appropriate exposure limits, once
informed and supported by ongoing research,
federal leaders can focus on lowering noise at
its source, and states can prioritize altering
the built environment. Meanwhile, local government
can adjust their procurement policies
and encourage building approaches that
reduce community noise.