Business activities impact the environment in various ways, including the use of natural resources, emissions of hazardous chemical substances and CO₂, and other factors. To reduce the environmental impact of its business operations, OMRON assesses and analyzes the amounts of energy and resources used (inputs) and the amounts of solid waste, wastewater and chemical substance emissions (outputs) at 80 sites throughout the world. The mass balance data is compiled in conformance with the latest Environmental Reporting Guidelines 2007 issued by the Ministry of the Environment (MOE), and used to formulate measures to reduce environmental impact.

※1 Estimated based on shipment quantity of main products in each business segment in fiscal 2009.
※2 Industrial waste from business activities, business-related general waste, and waste materials converted into usable resources.
※3 The latest national average power-receiving end coefficient (0.453kg/kWh) reported by the Federation of Electric Power Companies of Japan is used for CO₂ emissions for purchased electricity. For other fuels, coefficients specified by the revised Law Concerning the Promotion of Measures to Cope with Global Warming are used.
※4 Global warming potentials specified by the revised Law Concerning the Promotion of Measures to Cope with Global Warming are used for five greenhouse gas emissions (CH₄、N₂O、HFC、PFC、SF₆), which were then converted into tons of CO₂.
※5 Gasoline and light oil used for trucks and commercial vehicles in Japan.
※6 Estimated with an equation: (Sales quantity for main products in fiscal 2008) x (Electricity consumption per hour) x (Average use hours per year).