Abstract
Abstract Presently, methods exist to analytically measure the concentrations of odorants in air at levels significantly contributing to air pollution odors, and assess contributions of various components and odor emission sources. Odor intensity does not decrease in direct proportion to the reduction of the odorant concentrations. To estimate the percent reductions needed to reduce odor intensity, it is necessary to relate intensity to the concentration. Examples of such relations are given, limitations in the application of the odor threshold values to practical problems are discussed, and the present methods for odor quality characterization are outlined. Comments are made on the possibility of performing objective odor measurements.
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