02140oam 2200589 450 991071609460332120210429092718.0(CKB)5470000002517155(OCoLC)1190697686(EXLCZ)99547000000251715520200825j202004 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierLichen elemental indicators for air pollution in eastern United States forests a pilot study in the Upper Midwest /Susan Will-Wolf [and three others]Portland, OR :U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station,April 2020.1 online resource (178 pages) illustrations (some color), color mapsGeneral technical report ;PNW-GTR-985"April 2020."Includes bibliographic references (pages 32-37).Lichen elemental indicators for air pollution in eastern United States forests AirPollutionMiddle WestIndicators (Biology)Middle WestLichensMonitoringMiddle WestForest ecologyMiddle WestAirPollutionResearchfastIndicators (Biology)fastLichensEcologyfastMiddle WestfastTechnical reports.lcgftAirPollutionIndicators (Biology)LichensMonitoringForest ecologyAirPollutionResearch.Indicators (Biology)LichensEcology.Will-Wolf Susan1399829Jovan SarahAmacher Michael C.Patterson Paul L.Pacific Northwest Research Station (Portland, Or.),AGLAGLOCLCFGPOBOOK9910716094603321Lichen elemental indicators for air pollution in eastern United States forests3465805UNINA