Sec. 791. UFP STUDY

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## SEC. 791 UFP STUDY ###

(a)In General Not later than 180 days after the date of enactment of this Act, the Administrator shall seek to enter into an agreement with the National Academies under which the National Research Council shall carry out a study examining airborne ultrafine particles and the effect of such particles on airport-adjacent communities. ###

(b)Scope of Study In carrying out the study under subsection (a), the National Research Council shall— ####

(1)summarize the relevant literature and studies done on airborne UFPs worldwide; ####

(2)focus on large hub airports; ####

(3)examine airborne UFPs and the potential effect of such UFPs on airport-adjacent communities, including— #####

(A)characteristics of UFPs present in the air; #####

(B)spatial and temporal distributions of UFP concentrations; #####

(C)primary sources of UFPs; #####

(D)the contribution of aircraft and airport operations to the distribution of UFP concentrations compared to other sources; #####

(E)potential health effects associated with elevated UFP exposures, including outcomes related to cardiovascular disease, respiratory infection and disease, degradation of neurocognitive functions, and other health effects; and #####

(F)potential UFP exposures, especially to susceptible groups; ####

(4)consider the concentration of UFPs resulting from various aviation fuel sources including aviation gasoline, sustainable aviation fuel, and hydrogen, to the extent practicable; ####

(5)identify measures intended to reduce the release of UFPs; and ####

(6)identify information gaps related to understanding potential relationships between UFP exposures and health effects, contributions of aviation-related emissions to UFP exposures, and the effectiveness of mitigation measures. ###

(c)Coordination The Administrator may coordinate with the heads of such other agencies that the Administrator considers appropriate to provide data and other assistance necessary for the study. ###

(d)Report Not later than 180 days after the National Research Council submits of the results of the study to the Administrator, the Administrator shall submit to the appropriate committees of Congress a report containing the results of the study carried out under subsection (a), including any recommendations based on such study. ###

(e)Definition of Ultrafine Particle In this section, the terms “ultrafine particle” and “UFP” mean particles with diameters less than or equal to 100 nanometers.