Born-Digital or AnalogAnalogTranscriptPollution. Air pollution Coal company official discusses "acid rain". RMN Ag 15, 1980 p.80 Environmental Protection Agency approves high-altitude emission standards for cars. RNIN 0 3, 1980 p.5 National parks affected by rising pollution. RM My 29, 1984 p.13 Acid rain beginning to hit Western lakes and forests. RM Jy 24, 1984 p.11 RMN Jy 31, 1984 p.9CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
Pollution. Air pollution, [493608]. Denver Public Library Digital Collections, accessed 16/12/2025, https://digital.denverlibrary.org/nodes/view/1577063
