TY - JOUR T1 - Pollutants in the Air and Acids in the Rain JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 70 LP - 77 DO - 10.48044/jauf.1987.012 VL - 13 IS - 3 AU - Ellis B. Cowling Y1 - 1987/03/01 UR - http://auf.isa-arbor.com/content/13/3/70.abstract N2 - ER -