Estimation of chemical emissions from business establishments including that of below-threshold in PRTR aiming chemically polluted disaster waste management plan

Abstract

Chemical emissions from business establishments including that of below-threshold in Pollutant Release and Transfer Register (PRTR) in each local municipality were estimated for Osaka Prefecture area. Estimation was performed based on the chemicals’ characteristics such as gas/liquid/solid. In addition, emissions per unit area and that per business establishment were calculated. Approximately 96% of the total emissions are liquid, and almost all of them are volatile substances. In some municipalities such as Ikeda City, it is suggested that a small number of business establishments use a large amount of chemicals. In such municipality, surveys and supports for specific business establishments in such areas seems to be important. On the contrary, in some other municipalities such as Nishinari Ward and Higashinari Ward of Osaka City, it is suggested that many establishments use small amounts of chemical substances. In such areas, it is considered that grasping the used chemical substances by neighboring business establishments to prevent the mixture accidents with other chemicals is important.