monitoring stations required under subsection (a) are sited in census tracts that each meet one or more of the following criteria: (i) The rates of childhood asthma, adult asthma, chronic obstructive pulmonary disease, heart disease, or cancer are higher than the national average for such condition in the census tract. (ii) The percentage of people living below the poverty level, that are above age 18 without a high school diploma, or that are unemployed, is higher than the national average in the census tract. (iii) Two or more major sources (as defined in section 501(2) of the Clean Air Act ( 42 U.S.C. 7661(2) )) are located within the census tract and adjacent census tracts combined. (iv) COVID–19 death rates are at least 10 percent higher than the national average in the census tract. (v) There is a higher than average population in the census tract of vulnerable or sensitive individuals who may be at greater risk than the general population of adverse health effects from exposure to one or more air pollutants for which national ambient air quality standards have been established pursuant to the Clean Air Act ( 42 U.S.C. 7401 et seq.), including infants, children, pregnant women, workers, the elderly, or individuals living in an environmental justice community. (B) Limitation Not more than 1 of the NCore multipollutant monitoring stations described in subparagraph (A) may be sited within the same metropolitan statistical area, municipality, or county. (2) Siting determinations In determining and approving sites for NCore multipollutant monitoring stations required under subsection (a), the Administrator shall— (A) invite proposals from or on behalf of residents of a community for the siting of such stations in such community