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Environmental Data (FY2013)

■ Obu Plant

Environmental Impact Flow

(Decimal rounding off)
Input
Energy Total (Converted to units of heat energy) 492,039 GJ
Electricity 15,371 Mwh
City gas 7,401 km3N
LPG 0 t
Petroleum products 62 kl
Coal products -
Water Total 197 km3
Chemical Substances PRTR-designated substances 17 t
(Decimal rounding off)
Output
Greenhouse gases CO2 22 kt-CO2 Waste Waste generated 197 t
Other - Recycled 197 t
Air pollutants NOx 13 t Indirect landfill waste -
SOx - Direct landfill waste -
VOC 0 t Recycling rate 100 %
Water pollutants Wastewater 31 km3 Municipal waste 13 t
COD 0 t  
Nitrogen 0 t
Phosphorous 0 t

PRTR*1

(kg Decimal rounding off)
Ordinance No. Chemical Substance Amount Handled Released Volume Transferred Volume Volume recycled Volume Removed
Air Water Soil On-site Landfill Waste Sewage
087 Chromium and chromium(III) compounds  8,703             8,703    
188 N,N-Dicyclohexylamine  2,269         2,269        
308 Nickel  4,587             4,587    
*1
Only chemical substances that are notified based on Pollutant Release and Transfer Register (Class I designated chemical substance that is over 1000kg, and Specified Class I designated chemical substance that is over 500kg) are on the list.
*2
Amount of materials used for our products are included

Air (Complying with the Air Pollution Control Law, Prefectural Ordinances)

Item Equipment Control Value Actual Measurement(Maximum)
NOx (ppm) Boiler, Melting furnace 120 75
Internal combustion engines 200 150
Particulate matter (g/m3N) Boiler, Melting furnace 0.1 0.002
Internal combustion engines 0.05 N.D.
Melting furnace 0.2 0.004

Water (Complying with the Water Pollution Prevention Law, Prefectural Ordinances)

Item Control Value Actual Measurement
Maximum Minimum Average
pH 5.8-8.6 7.9 6.6 7.4
BOD 20 2.9 0.2 1.1
COD - 7.6 0.7 2.5
SS 20 1.4 N.D. 0.4
n-hexane extractable material 2 0.6 N.D. 0.2
Phenol 1 N.D. N.D. N.D.
Copper 1 0.036 N.D. 0.011
Zinc 2 0.783 0.075 0.265
Soluble iron 10 0.751 0.061 0.236
Soluble manganese 10 0.029 N.D. 0.009
Chromium 2 N.D. N.D. N.D.
Nitrogen oxide - 1.82 0.14 0.70
Phosphorous - 0.17 N.D. 0.06
Cadmium 0.1 N.D. N.D. N.D.
Total cyanide 1 0.02 N.D. 0.01
Lead 0.1 0.011 N.D. 0.005
Hexavalent chromium 0.5 0.018 N.D. 0.005
Arsenic 0.1 N.D. N.D. N.D.
Total mercury 0.005 N.D. N.D. N.D.
Selenium 0.1 N.D. N.D. N.D.
Boron 10 0.03 N.D. 0.01
Fluorine 8 0.16 0.02 0.10

*
N.D. Lower than the limit to be detectable or one-tenth of the control value

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