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Controlling Chemical Substances

International frameworks are being established to minimize the negative impact of chemical substances on people's health and the environment. The Kubota Group engages in ongoing activities aimed at appropriately controlling and reducing the use of chemical substances.

Controlling chemical substances

1. Medium-Term Environmental Conservation
 Targets 2020 and the Results for RY2016

Actions
items
Management
Indicators*2
Scope Base
RY
Targets
for
RY 2020
Results of
RY 2016
Achievement Status
Reduce
VOCs*1
VOC emissions
per unit of
production
Global Production 2014 -10% -7.1% We are promoting the substitution or reduced use of VOC-contained paint, thinner, etc.
  • VOCs comprise the six VOCs that are most prevalent in emissions from the Kubota Group, xylene, toluene, ethylbenzene, styrene, 1, 2, 4-trimethylbenzene, and 1, 3, 5-trimethylbenzene.
  • The figures per unit of production represent the intensity of the environmental load per unit of production money amount. The exchange rate of the base fi scal year is used when translating the production value of overseas sites into yen.

2. VOC Emissions

In RY2016, volatile organic compound (VOC) emissions were 707 tons, a decrease of 8.6% compared to the previous reporting year. Additionally, the VOC emissions per unit of sales improved by 5.5% compared to the previous reporting year. The decrease in VOC emissions is mainly due to the reduction of production volume at cast iron production sites in Japan. We are promoting the ongoing measures, such as elimination or reduced use of VOC-contained paint, thinner, etc., and switching to VOC-free materials.

Trends in VOC Emissions and Emissions per Unit of Sales
 
  • VOCs comprise the six VOCs that are most prevalent in emissions from the Kubota Group: xylene, toluene, ethylbenzene, styrene, 1,2,4-trimethylbenzene, and 1,3,5-trimethylbenzene.
  • VOC emissions per unit of consolidated net sales.

VOC Emissions by Region
(RY2016 results)
VOC Emissions by Business
(RY2016 results)
VOC Emissions by Substance (RY2016 results)

3. Release and Transfer of PRTR-designated Substances

In RY2016, a total of 636 tons of substances stipulated in the PRTR Law* were released and transferred, a decrease of 17.5% compared to the previous reporting year. Additionally, the release and transfer per unit of sales improved by 14.7% compared to the previous reporting year. The decrease in PRTR release and transfer is mainly due to the reduction of production volume at cast iron production sites in Japan. Similar to reduction of VOC emissions, We are promoting the ongoing measures to reduce the PRTR-designated substances.

* Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and
  Promotion of Improvements to the Management Thereof.

Trends in Release and Transfer of PRTR-designated Substances, and Release and Transfer per Unit of Sales (Japan)
 
  • Total amount of declarable substances that are handled at each site (annual volume of 1 ton or more (0.5 ton for Specific Class I designations))
  • Release and transfer of PRTR-designated substances per unit of consolidated net sales.

4. Monitoring Groundwater

Results of groundwater measurements conducted on the premises of the business sites that used organic chlorine-based compounds in the past are as shown below.


Groundwater monitoring (RY2016)

Business site Substance Measured groundwater value Environmental standard
Tsukuba Plant Trichloroethylene Non-detected (less than 0.0001mg/L) Less than 0.03 mg/L
Utsunomiya Plant Trichloroethylene Non-detected (less than 0.001mg/L) Less than 0.03 mg/L

Reduction of Chemical Substances Contained in Products

The Kubota Group has set rules for identifying and properly managing chemical substances in products in order to comply with REACH regulations* in Europe and other chemical substance regulations.
 Since RY2010, chemical substances in products have been classified as one of the three following categories and managed appropriately. With cooperation from our suppliers, we investigate chemical substances in products on a global basis.

* REACH Regulations: EU Regulations for Registration, Evaluation, Authorization and Restriction of Chemical

- Three Control Levels -
  1. Substances to be Prohibited; Should not be contained in products
  2. Substances to be Restricted; Should not be contained in products under certain conditions and applications
  3. Substances to be Controlled; Presence in products should be recognized

Related Information

Kubota's research and development values thorough hands-on approach. As an agricultural and water expert, we challenge and attain the future of food, water, and the environment, realizing our customer’s needs.

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