; or (ii) make grants under section 105 of the Clean Air Act to State and local governments for deployment and operation of such NCore multipollutant monitoring stations; and (B) shall use at least 5 percent, but not more than 10 percent, of amounts made available to carry out this section to perform maintenance and repairs necessary to restore to operation to currently non-operational monitors located in nonattainment areas for ozone or PM2.5. 5. Sensor Monitoring (a) Deployment of air quality sensors Not later than 6 months after the date of enactment of this Act, the Administrator shall deploy at least 1,000 air quality sensors, that each cost $2,000 or less, in census tracts or counties with per capita death rates from COVID–19 that are at least 10 percent higher than the national average as of the date of enactment of this Act. (b) Pollutants Each sensor deployed pursuant to subsection (a) shall measure ozone, PM2.5, or sulfur dioxide. The Administrator shall determine which pollutant or pollutants to monitor based on the pollution sources affecting the area in which the sensor is to be deployed. (c) Priority The Administrator shall give priority for deployment of sensors pursuant to subsection (a) to census tracts or counties that— (1) lack SLAMS for the pollutant or pollutants that sensors would be deployed to measure; (2) have, or are substantially impacted by, significant emissions of ozone, PM2.5, or sulfur dioxide