Domestic manufacturing sites:Sendai Plant

Sendai Plant

Location 3-5-1 Fukiage, Iwanuma-shi, Miyagi 989-2484 Japan
Telephone +81-223-22-2191
Products Automobile tires
Site area 217,150m²
Total floor space 118,378m²
Number of employees 1,258 (as of the end of December 2016)

Environmental impact data

Item unit FY2012 FY2013 FY2014 FY2015 FY2016
CO2 emissions per unit of production t-CO2/t 2.494 2.361 2.372 2.377 2.483
Landfill waste per unit of production t/t 0.0528 0.0128 0.00511 0 0
Water consumption 1,000 t 1,352 1,373 1,457 1,434 1,444
Water consumption per unit of production t/t 21.1 19.9 21.2 21.3 23.1

Atmospheric pollutant measurement (emitted gas concentration)

Equipment SOx NOx Soot and dust
Regulatory value Measured value Regulatory value Measured value Regulatory value Measured value
Centralized smokestack 1.26 0.250 0.014
Desulfurization equipment (No. 1) 0.03 0.150 0.019
Desulfurization equipment (No. 2) 0.04 0.150 0.022
Heavy oil boiler 150 85
Coal boiler 320 292
Overall total 23 1.33

Water pollutant measurement

Item Regulatory value Maximum Minimum Average
pH 5.8 – 8.6 8.2 7.5 7.8
BOD 120 3.3 0.6 1.7
COD 120 7.6 3.9 5.2
SS 150 12.0 1.0 5.0
Fluorine 8 0.16 0.08 0.13
Boron 10 0.20 0.10 0.13
Zinc 2 0.01 0.01 0.01
n-Hex(mineral oil) 5 4.2 0.5 1.0

Substances subject to the PRTR law

Offic No. Substance Emission Amount transferred
Atmosphere Water Waste products etc. Sewage
74 p-tert-Octylphenol 0 0 319 0
80 Xylene 3,740 0 116 0
86 Cresol 0 0 16 0
132 Cobalt and its compounds 0 0 160 0
155 N-(cyclohexylthio)phthalimide 0 0 314 0
189 N,N-dicyclohexyl-2-benzothiazolesulfenamide 0 0 597 0
205 1,3-diphenylguanidine 0 0 2,603 0
230 N-(1,3-dimethylbutyl)-N’-phenyl-para-phenylenediamine 0 0 11,583 0
258 Hexamethylenetetramine 0 0 17 0
300 Toluene 3,526 0 109 0
349 Phenol 0 0 63 0
372 N-(tert-Butyl)-2-benzothiazolesulfenamide 0 0 2,942 0
Atmospheric pollutant measurements
  • For actual measured values, the highest measured values are shown.
  • For regulatory values, the strictest value from all relevant laws, ordinances and agreements is shown.
  • Regulatory value units
    NOx: ppm
    SOx: Sendai Plant use m³N/h, while all other bases use K values
    Soot and dust: g/m³N
    Dioxins: ng-TEQ/m³Nfor gas emissions
    Burnt residue: ng-TEQ/g
Water pollutant measurement
  • For regulatory values, the strictest value from all relevant laws, ordinances and agreements is shown.
  • Units are mg/L, except for pH and coliform bacteria, which is organisims/cm³
    pH: hydrogen ion concentration,
    BOD: biological oxygen demand,
    COD: chemical oxygen demand,
    SS: suspended solid concentration in water
Substances subject to the PRTR law
  • Units are given rounded to the nearest kg
  • The unit for dioxins is mg-TEQ/year with two significant digits

Domestic manufacturing sites

Affiliated company manufacturing sites

Overseas manufacturing sites

ACTION FOR CSR