Lead and lead-210 in rainwater.
D000398:Air Pollution, Radioactive / Q000032:analysis; D004777:Environment; D007087:Illinois; D007854:Lead / Q000032:analysis*; D008824:Michigan; D011868:Radioisotopes / Q000032:analysis*; D014867:Water / Q000032:analysis*; D014887:Weather
D011868:Radioisotopes; D014867:Water; D007854:Lead