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Komatsu's Environmental and Social Activities Data

Site Data (Japan)  Research Division


Year of Establishment 1985
Location Hiratsuka, Kanagawa Prefecture
Main Products R&D on business fields of the Komatsu Group
Site/Green Landscape (1,000 m2) 195/124
Number of employees 159
Date of ISO14001 certification acquisition May 2008
* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2014.

Major Performance

Environmental impact Energy consumption
Item Actual value Item Actual consumption Converted to calorie equivalents (GJ)
Total CO2 emissions 1,471 t-CO2 Electricity 2,968 MWh 28,710
NOx total amount 393 kg Heavy oil A 3 kl 133
SOx total amount 89 kg Kerosene 117 kl 4,277
Total emissions of waste 127 t Light oil 3 kl 131
Amount recycled 126 t Town gas 0 Nkm3 0
Recycling rate 99.5 % LPG 7 t 373
BOD emissions 9 kg Other   12
COD emissions 16 kg Total   33,636
Wastewater 2,937 m3
Output of in-house power generation 0 MWh
* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amount disposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.

* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations

Item Unit Facility Regulated value Actual value
Nitrogen oxides (NOx) ppm Service generator 303 80
  ppm Cold/hot water generator 390 44
Sulfur oxides (SOx) - K-value regulation 11.5 0.9
Soot and dust g/m3N Service generator 0.1 0.018
  g/m3N Cold/hot water generator 0.2 0.005
* Regulated values are in accordance with the Air Pollution Control Law and local regulations.
Item Regulated value according to the Water Pollution Control Law Regulated value Actual value
Maximum Minimum Average
pH 5.8-8.6 5.8-8.6 7.4 6.9 7.2
BOD (Biochemical oxygen demand) 160 mg/l 10 3.0 1.0 2.0
COD (Chemical Oxygen Demand) 160 mg/l 25 6.0 1.0 4.8
Suspended solids (SS) 200 mg/l 65 15.0 1.0 3.7
Mineral oils 5 mg/l 5 ND ND ND
Copper 3 mg/l 1 ND ND ND
Zinc 2 mg/l 1 ND ND ND
Nitrogen 120 mg/l - - - -
Phosphorus 16 mg/l - - - -
Cadmium 0.1 mg/l 0.1 ND ND ND
Lead 0.1 mg/l 0.1 ND ND ND
Chromium (VI) 0.5 mg/l 0.5 ND ND ND
Trichloroethylene 0.3 mg/l 0.3 ND ND ND
Tetrachloroethylene 0.1 mg/l 0.1 ND ND ND
Dichloromethane 0.2 mg/l 0.2 ND ND ND
1,1,1-trichloroethane 3 mg/l 3 ND ND ND
* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.