; and (B) assurance and quality standards for the database under subparagraph (A). (b) Functions (1) In general Under the program, the Administrator, in consultation with the appropriate Federal agencies and the Advisory Committee, shall at a minimum carry out monitoring described in paragraphs (2) through (4) at the locations selected under subsection (a)(3). (2) Air and watersheds The program, in association with the National Atmospheric Deposition Program, shall monitor long-term changes in mercury levels and important ancillary measures in the air, including— (A) the measurement and recording of wet mercury deposition; (B) an estimation of— (i) dry mercury deposition (such as litter mercury deposition); (ii) mercury flux; and (iii) mercury export; and (C) the measurement of mercury isotopes and ancillary measurements to fully understand the transport, cycling, and transformations of mercury through ecosystems. (3) Water and soil chemistry The program, in association with the WaterWatch Program established by the United States Geological Survey, shall monitor long-term changes in mercury and methyl mercury levels and important ancillary measures in the water and soil or sediments, including— (A) extraction and analysis of soil and sediment cores; (B) measurement and recording of total mercury and methyl mercury concentration in surface sediments; and (C) measurement and recording of total mercury and methyl mercury concentration in surface waters. (4) Aquatic and terrestrial organisms The program, in association with the United States Fish and Wildlife Service and the Inventory and Monitoring Division of the National Park Service, shall monitor long-term changes in mercury and methyl mercury levels and important ancillary measures in marine, freshwater, and terrestrial organisms, including— (A) measurement and recording of total mercury and methyl mercury concentrations in— (i) invertebrates; (ii) yearling or lower trophic level fish; and (iii) commercially, recreationally, or conservation relevant fish