TY - JOUR AU - Grantz, David A. AU - MacPherson, J. Ian AU - Massman, William J. AU - Pederson, James TI - Study demonstrates ozone uptake by SJV crops JF - California Agriculture JO - Calif Agr Y1 - 1994/07/01 VL - 48 IS - 4 SP - 9 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://dx.doi.org/10.3733/ca.v048n04p9 L3 - 10.3733/ca.v048n04p9 AB - The California Ozone Deposition Experiment, using Instruments mounted In an airplane and on the ground, shows that agricultural land in the San Joaquin Vailey removes large amounts of ozone from valley air. The most active pathway Is uptake through sto-mata In plant leaves, the process leading to crop yield losses. Other pathways, Including ozone destruction on leaf, stem and soil surfaces, are slower but very important on a valley-wide basis. Ozone deposition to crops may have a slgnlflcant Impact on air qualify, and should be considered when farmland Is converted to urban uses that contribute more to ozone production and less to ozone removal.