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Komatsu?fs Environmental and Social Activities Data


Site Data (Japan)  Komatsu House, Ltd.

Overview

Year of Establishment 1971
Location Shinshiro, Aichi Prefecture
Main Products Prefabricated structures for businesses
Site/Green Landscape (1,000 m2) 31/1
Number of employees 48
Date of ISO14001 certification acquisition March 2002
* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance

Environmental impact Energy consumption
Item Actual value Item Actual consumption Converted to calorie equivalents (GJ)
Total CO2 emissions 1,222 t-CO2 Electricity 949 MWh 9,460
NOx total amount 297 kg Heavy oil A 102 kl 3,988
SOx total amount 178 kg Kerosene 0 kl 0
Total emissions of waste 79 t Light oil 13 kl 481
Amount recycled 79 t Town gas 0 Nkm3 0
Recycling rate 100 % LPG 183 t 9,180
BOD emissions 138 kg Other   0
COD emissions 245 kg Total   23,109
Wastewater 9,316 m3
* 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

Air
Item Unit Facility Regulated value Actual value
Nitrogen oxides (NOx) ppm Boiler 250 55
  ppm      
  ppm      
  ppm      
Sulfur oxides (SOx) - K-value regulation 17.5 0.59
Soot and dust g/m3N Boiler 0.3 0.002
  g/m3N      
  g/m3N      
  g/m3N      
* Regulated values are in accordance with the Air Pollution Control Law and local regulations.
Wastewater
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 7.2 6.3 6.7
BOD (Biochemical oxygen demand) 160 mg/l 160 37.0 3.7 14.8
COD (Chemical Oxygen Demand) 160 mg/l 160 86.0 11.0 26.3
Suspended solids (SS) 200 mg/l 200 26.0 1.0 4.9
Mineral oils 5 mg/l 5 1.0 ND 1.0
Copper 3 mg/l - - - -
Zinc 2 mg/l - - - -
Nitrogen 120 mg/l 120 *130 9.7 27.5
Phosphorus 16 mg/l 16 14.0 0.7 2.7
Cadmium 0.1 mg/l - - - -
Lead 0.1 mg/l - - - -
Chromium (VI) 0.5 mg/l - - - -
Trichloroethylene 0.3 mg/l - - - -
Tetrachloroethylene 0.1 mg/l - - - -
Dichloromethane 0.2 mg/l - - - -
1,1,1-trichloroethane 3 mg/l - - - -
* 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.
* Although the restriction value was exceeded temporarily, it is comfirmed about having returned to the stationary state (10-20) by check and cleaning of the processing tub.