Obu Plant

Environmental Impact Flow

(Decimal rounding off)
Input
Energy Total (Converted to units of heat energy) 527,362 GJ
Electricity 19,596 Mwh
City gas 7,376 km3N
LPG 0 t
Petroleum products 62 kl
Coal products 0 t
Water Total 193 km3
Chemical Substances PRTR-designated substances 16 t
(Decimal rounding off)
Output
Greenhouse gases CO2 23 kt-CO2 Waste Waste generated 176 t
Other 0 kt-CO2 Recycled 176 t
Air pollutants NOx 13 t Indirect landfill waste 0 t
SOx 0 t Direct landfill waste 0 t
VOC 0 t Recycling rate 100 %
Water pollutants Wastewater 30 km3 Municipal waste 127 t
COD 0 t
Nitrogen 0 t
Phosphorous 0 kg

PRTR*1

(kg Decimal rounding off)
Ordinance No.Chemical SubstanceAmount HandledReleased VolumeTransferred VolumeVolume RecycledVolume RemovedConsumption Volume*2
AirWaterSoilOn-site LandfillWasteSewage
087 Chromium and chromium(III) compounds 9,428 0 0 0 0 0 0 9,428 0 0
308 Nickel 5,077 0 0 0 0 0 0 5,077 0 0

*1 Only chemical substances that are notified based on Pollutant Release and Transfer Register (Class I designated chemical substance that is over 1,000kg, 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)

ItemEquipmentControl ValueActual Measurement (Maximum)
NOx (ppm)   Boiler, Melting furnace 150 35
Internal combustion engines 200 150
Melting furnace 144 90
Particulate matter (g/m3N) Boiler, Melting furnace 0.1 N.D.
Internal combustion engines 0.05 N.D.
Melting furnace 0.2 N.D.

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

ItemStandard ValueActual Measurement
MaximumMinimumAverage
pH 5.8-8.6 7.8 7.0 7.3
BOD 20 1.5 N.D. 0.6
COD - 7.6 0.6 2.1
SS 20 1.8 N.D. 0.33
n-hexane extractable material 2 0.7 N.D. 0.3
Phenol 1 N.D. N.D. N.D.
Copper 1 0.068 N.D. 0.012
Zinc 2 0.5 0.027 0.14
Soluble iron 10 0.26 0.07 0.17
Soluble manganese 10 N.D. N.D. N.D.
Chromium 2 N.D. N.D. N.D.
Total nitrogen - 1.63 0.19 0.79
Total phosphorus - 0.17 0.01 0.06
Cadmium 0.03 N.D. N.D. N.D.
Total cyanide 1 0.01 N.D. 0.01
Lead 0.1 N.D. N.D. N.D.
Hexavalent chromium 0.5 0.008 0.008 0.008
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 0.09 0.02 0.05
Fluorine 8 0.34 0.042 0.15

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