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Overview of Environmental Impacts

Toshiba Group, as shown in the material flow below, is proceeding to quantitatively analyze the environmental impact at each stage of the product/service life cycle—from materials procurement, manufacturing, and distribution to customer usage, product retrieval, and recycling. Furthermore, we are carrying out overall assessments on the environmental impact of chemicals, greenhouse gas emissions, and resources/energy using the Life-cycle Impact assessment Method based on Endpoint modeling (LIME). We realized that the environmental impact is most significant during the customer usage, material procurement, and manufacturing stages of the product life cycle in that order. As such, we feel that it is extremely important to implement effective initiatives based on environmental impact assessments carried out across the entire product life cycle. Moving forward, we are expanding the items on which we are collecting data and are striving to improve the precision of the data. This data was collected from 598 Toshiba Group companies (actual results for FY2013).

[Image] Overview of Environmental Impacts

Efficient use of resources Promotion of green procurement Reduction in GHG emissions Reduction in energy-derived CO₂ emissions Reduction in the total waste volume and the final disposal volume Reduction in the volume of water received Reduction in and management of emissions of chemical substances into the atmosphere and hydrosphere Responses to environmental risks Reduction in CO₂ emissions associated with product logistics. 3R initiatives for packaging materials Reduction in CO₂ emissions through eco products Increase in the volume of end-of-life products recycled
Material inputs are calculated based on the Estimation Method for Material Inputs Using Input-Output Table (EMIOT), a method independently developed by Toshiba Group. ("EMIOT" : Estimation method for Material-inputs using Input-Output Table) EMIOT uses ratios of resources used per unit production, which are prepared based on the Input-Output Table, to calculate total material inputs.One distinctive feature of the method is that input-output analysis is applied only to the flow of resources from upstream to downstream. Another is that the volume of such resources by industrial sector is stored in a database.Using this method, it is possible to calculate weights of input resources by resource type from the data on procurement (monetary value) by resource category, which are gathered by materials procurement divisions. Therefore, data can be gathered not only on direct materials, but also indirect materials.Previously, it was difficult to clarify the
The joule is a unit of energy measuring mechanical work, heat, and electricity. One joule equals about 0.239 calories. 1 TJ = 1012 J; 1 PJ = 1015 J
In this table, the CO2 emission coefficient for electricity in Japan is 3.50 t-CO2/10,000 kWh in FY2010, 4.76 t-CO2/10,000 kWh in FY2011, and 4.87 t-CO2/10,000 kWh in FY2012 and FY2013.
The volume of hydrogen fluoride and its water-soluble salt emitted into hydrosphere since FY2009 is calculated to be zero because hydrogen fluoride used becomes non-water-soluble salt through post-use treatment.

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