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  Highlights of Environmental Initiatives in FY2002
Environmental
Management
Development and Design
Procurement/Production/
Logistics
  [ Procurement ]
Environmental Initiatives in Cooperation with Suppliers
  [ Production ]
Volume of Resources Input and Volume of Substances Released into the Environment
  Production Environmental
Management System
  Initiatives to Reduce
Environmental Risk
  Thorough Implementation
of Preventive Measures
  Prevention of Global Warming
  Reducing Substances of
Environmental Concern
  Reducing Waste
  Initiatives to Conserve Resources
  Conserving Water Resources
  Air and Water Quality Data
  [ Plant Initiatives]
Motomachi Plant
  [ Logistics ]
Enhanced Environmental
Management
  Reducing CO2 Emissions
  Reducing Packaging and
Wrapping Materials
  Activities at Logistics Centers
  Japan Procured Parts Exhibition
  Example of Activities
at a Parts Center
Recycling and Sales/After Sales
Automobile Peripheral
and Other Businesses
Environmental Education/
Communication
Special Story
Consolidated Environmental Management
Environment-Related Awards Received by Toyota
Continued Reporting of
Environmental Aspects
Environmental
Chronological Table
 
 
 
Reducing the Volume of Substances Subject to PRTR
Toyota uses a total of 18,000 tons of 30 substances that are subject to PRTR, with toluene and xylene —found in thinners used as purge solvents in painting processes— accounting for 77% of the total volume, most of which is discharged into the atmosphere.
Toyota is promoting a reduction in usage of substances subject to PRTR, which discharge large volumes of hazardous substances, and a switch to less hazardous substances not subject to PRTR. Specifically, Toyota is continuing to implement a change to purge solvents that substitute toluene and xylene with other less hazardous substances. As a result of meticulous daily management to ensure the recovery of purge solvents and systematic introduction of water borne paints,1 Toyota has managed to reduce the usage volume. In FY2002, the total discharge volume was 3,600 tons, thereby achieving the goal.

1. Water borne paints: Paints that contain almost no organic solvents
See details on the material balance of substances subject to PRTR
 
•Trend in Discharge Volumes of Substances Subject to PRTR
  •Breakdown of Materials Subject to PRTR Discharged
 
Reducing VOC Emissions
Organic thinners found in paint solvents used in automobile painting processes account for the majority of VOCs (Volatile Organic Compounds) generated. Since 1999, Toyota has been gradually introducing water borne paints as an effective means of reducing VOC emissions.
In FY2002, in conjunction with the installation of new equipment on Painting Line 1 of the Tahara Plant, Toyota introduced water borne paints for the primer coat in addition to those already in use for the top coating (base coat), reducing VOC emissions to 19g/m2.
In addition, as a result of promoting measures for improving the recovery rate of purge solvents, average VOC emissions on all body painting lines were reduced to 44g/m2, thereby achieving the goal.
  •Paint Film Structure
 
•Trend in VOC Emissions Volume (Average of All Lines)


*The tabulation method has been changed from a 3-month average base to the average for a year.
  •Breakdown of the Volume of Waste Generated in FY2002 (Excluding that Recycled)
 
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