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Hirakata Plant: Environmental Load Data (FY2018)

Environmental Performance

Item Unit FY2017 FY2018
Energy Usage kL per year (crude oil equivalent) 3,603 3,973
CO2 Emissions t-CO2 per year 7,222 7,862
Water Usage m³ per year 37,262 32,389
Amount of Industrial Waste Discharged kg per year 47,643 58,174
Discharge of drainage
(Wastewater Treatment Facility)
m³ per year 16,141 17,381

Atmosphere

Item Facility Legal or public regulations Voluntary management standard Measured value
Average value Maximum value Measurement frequency
Dust and soot
(g/Nm³)
Gas absorption type water cooler/heater AR-1 0.05 0.02 0.01 0.01 Once every five years
NOx*
(ppm)
Gas absorption type water cooler/heater AR-1 150 43.0 32.5 33.0 Twice a year

*NOx:Nitrogen oxide

Water Quality

Item unit Legal or public regulations Voluntary management standard Measured value
Average value Maximum value Measurement frequency
Hydrogen ion concentration (pH) mg/L 5.8~8.6 6.2~8.2 7.6 7.8 Once a month
Biochemical oxygen demand (BOD) mg/L 35 10 3.6 10.0 Once a month
Chemical oxygen demand (COD) mg/L 35 10 6.4 9.1 Once a month
Suspended substances (SS) mg/L 70 5 2.5 3.8 Once a month
Normal-hexane extract mg/L 4 1 1 1 Once a month
Coliform count per cm³ 3,000 6 0 0 Once a month

Atmosphere Total emission load

(unit: ton per year)

Item Total emission load
FY2017 FY2018
NOx 0.21 0.25
SOx

SOx:Sulfur oxide

Water Quality Total emission load

(unit: ton per year)

Item Total emission load
FY2017 FY2018
Chemical oxygen demand (COD) 0.10 0.11
Biochemical oxygen demand (BOD) 0.06 0.06

Foul Odors

No exceedance of standard values.

Noise and Vibrations

No exceedance of standard values.

Dusts

No exceedance of standard values.

PRTR Controlled Substances

(unit: ton per year)

Material No. Subject material Amount handled Amount of release Amount transported Other amount
Release into air Release into waters Release into soil Waste Sewage Re-
cycling
Con-
sump-
tion
Re-
mov-
al
30 Linear alkylbenzene sulfonate and its salt 1.91 0 0 0 0.01 0 0 1.90 0
31 Antimony and its compounds 1.17 0 0 0 0 0 0 1.17 0
Total of substances subject to report 3.08 0 0 0 0.01 0 0 3.07 0

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