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Tamaki Plant: Environmental Load Data (FY2018)

Environmental Performance

Item Unit FY2017 FY2018
Energy Usage kL per year
(crude oil equivalent)
8,373 8,421
CO2 Emissions t-CO2 per year 16,024 15,910
Water Usage m³ per year 55,104 71,453
Amount of Industrial Waste Discharged kg per year 760,588 475,464
Discharge of drainage
(Wastewater Treatment Facility)
m³ per year 10,274 20,084

Atmosphere

Item Facility Legal or public regulations Voluntary management standard Measured value
Average value Maximum value Measurement frequency
Not applicable

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 6.3~8.1 7.1 7.5 Once a month*
Biochemical oxygen demand (BOD) mg/L 160 9 0.8 1.2 Once a month*
Chemical oxygen demand (COD) mg/L 160 9 1.6 2.6 Once a month*
Suspended substances (SS) mg/L 200 4.5 Less than 2 Less than 2 Once a month
Normal-hexane extract mg/L 5 4.5 Less than 1 Less than 1 Once a month
Coliform count per cm³ 3,000 315 Less than 30 Less than 30 Once a month
Nitrogen mg/L 120 54 4.2 8.2 Once a month*
Phosphorus mg/L 16 7.2 Less than 0.1 Less than 0.1 Once a month*

*In addition to the monthly analysis by measurement certification business operator, analysis is performed every two hours by automatic analyzer.

Atmosphere Total emission load

(unit: ton per year)

Item Total emission load
FY2017 FY2018
Not applicable

Water Quality Total emission load

(unit: ton per year)

Item Total emission load
FY2017 FY2018
Chemical oxygen demand (COD) 0.03 0.03
Biochemical oxygen demand (BOD) 0.02 0.02

Foul Odors

Not subject to the regulations.

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 7.7 0 0 0 0.1 0 0 7.6 0
31 Antimony and its compounds 1.6 0 0 0 0 0 0 1.6 0
412 Manganese and its compounds 32.7 0 0 0 0 0 0 32.7 0
Total of substances subject to report 42.0 0 0 0 0.1 0 0 41.9 0

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