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
at the end of FY2015
1,310 people

Environmental impact data

Item unit FY2011 FY2012 FY2013 FY2014 FY2015
CO2 emissions per unit of production t-CO2/t 2.337 2.494 2.361 2.372 2.377
Landfill waste per unit of production t/t 0.1121 0.0528 0.0128 0.00511 0.00
Water consumption t 1,385 1,352 1,373 1,457 1,434

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 - 0.06 - - 0.250 0.013
Desulfurization equipment (No. 1) - 0.07 - - 0.150 0.013
Desulfurization equipment (No. 2) - 0.81 - - 0.150 0.017
Heavy oil boiler - - 150 69 - -
Coal boiler - - 320 290 - -
Overall total 23 0.94 - - - -

Water pollutant measurement

Item Regulatory value Maximum Minimum Average
pH 5.8 – 8.6 8.2 7.5 7.9
BOD 120 7.4 1.2 2.4
COD 120 6.6 4.0 5.0
SS 150 7.0 2.0 4.2
Fluorine 8 0.25 0.09 0.14
Boron 10 0.20 0.10 0.12
Zinc 2 0.18 0.18 0.18
n-Hex(mineral oil) 5 1.6 0.5 0.8

Substances subject to the PRTR law

Offic No. Substance Emission Amount transferred
Atmosphere Water Waste products etc. Sewage
74 p-tert-Octylphenol 0 0 320 0
80 Xylene 3,713 0 115 0
86 Cresol 0 0 18 0
132 Cobalt and its compounds 0 0 167 0
155 N-(cyclohexylthio)phthalimide 0 0 292 0
189 N,N-dicyclohexyl-2-benzothiazolesulfenamide 0 0 630 0
205 1,3-diphenylguanidine 0 0 2,539 0
230 N-(1,3-dimethylbutyl)-N’-phenyl-para-phenylenediamine 0 0 12,449 0
258 Hexamethylenetetramine 0 0 19 0
300 Toluene 3,493 0 108 0
349 Phenol 0 0 64 0
372 N-(tert-Butyl)-2-benzothiazolesulfenamide 0 0 3,069 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

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