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Hiroshima District

Hiroshima Plant

Hiroshima Plant

Hiroshima Plant

Address: 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima, Japan Operations started: March 1931
Major products: Passenger cars, trucks, engines, automobile manual transmissions ISO14001 certification: June 2000
Site area (floorspace): 2,247,000 square meters (1,796,000 square meters)


  • Atmospheric pollutants
Atmospheric pollutants Unit Regulation Actual(max.)
Nox Boilers ppm 180 85
150 48
Drying ovens ppm 250 69
230 30
Melting furnaces ppm 180 80
Diesel engines ppm 950 640
Heating furnaces ppm 200 < 42
180 23
150 130
130 100
Ash Boilers g/m³N 0.30 0.014
0.10 0.0018
Drying ovens g/m³N 0.4 0.0069
0.35 0.0028
0.2 0.0056
0.15 0.0069
Melting furnaces g/m³N 0.4 0.015
0.20 0.076
0.10 0.0014
Diesel engines g/m³N 0.10 0.021
Heating furnaces g/m³N 0.4 0.0035
0.25 0.13
0.20 0.042
SOx K-value regulation - 7 1
VOC Painting facilities ppm 700 280
Washing facilities ppm 400 221
  • Water pollutants (Wastewater Drainage Destination: Enko River and Kaita Bay)
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH (freshwater) - 5.8 to 8.6 7.5 6.8 7.0
pH (seawater) - 5.5 to 9.0 7.6 6.8 7.2
BOD mg/L 120 8 ND < 1.9
COD mg/L 15 9.8 1.2 4.0
SS mg/L 150 5.6 ND < 2.8
Oil mg/L 5 1.5 ND < 0.5
Fluorine (freshwater) mg/L 8 0.3 ND < 0.2
Fluorine (seawater) mg/L 15 7.5 0.1 2.9
Zinc mg/L 2 0.89 ND < 0.1
Soluble manganese mg/L 10 0.7 ND < 0.3
Total nitrogen mg/L 60 9.5 1.4 4.0
Total phosphorus mg/L 8 1 ND < 0.11
Coliform groups colonies/cm³ 3,000 130 ND < 16
Boron (freshwater) mg/L 10 0.28 0.05 0.17
Boron (seawater) mg/L 230 2.1 0.1 1.1
Ammonia, ammonium, nitrous acid, and nitrous acid compounds mg/L 100 4.7 0.8 2.4

The following substances were not detected: cadmium, cyanogen, organic phosphorus, lead, hexavalent chromium, arsenic, mercury, alkyl mercury, PCBs, trichloroethylene, tetrachloroethylene, dichloromethane, carbon tetrachloride, 1,2-dichloroethane, 1,1-dichloroethylene, cis-1,2-dichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,3-dichloropropene, thiuram, simazine, thiobencarb, benzene, selenium, 1,4-dioxane, phenol, copper, soluble iron, and chromium.

  • Volume of PRTR-designated Pollutants Emitted and Transferred in FY March 2013

 

Unit:(kg/year)
(Items marked with an asterisk (*) are Class 1 designated chemical substances of which 500 kg/year or more are handled.)
(Other items are Class 1 designated chemical substances of which 1,000 kg/year or more are handled.)


Substance No. Substance group Amount handled   Volume emitted Amount consumed Amount disposed Amount transferred Amount recycled
Air Water Soil Waste products
1 Water-soluble zinc compounds 21,748 0 348 0 348 19,008 2,392 0 0
37 4,4'-isopropylidenediphenol 1,675 0 0 0 0 0 1,675 0 0
53 Ethyl benzene 155,723 75,125 0 0 75,125 41,200 33,686 0 5,712
80 Xylene 561,042 234,606 0 0 234,606 172,110 98,179 0 56,147
87 Chromium and trivalent chromium compounds 54,396 0 0 0 0 53,641 0 755 0
88* Hexavalent chromium compounds 1,842 0 0 0 0 1,087 755 0 0
258 1,3,5,7-tetraazetoricyclo [3.3.1.13.7] decane 84,719 0 0 0 0 0 84,719 0 0
277 Triethylamine 224,494 1,347 0 0 1,347 0 223,147 0 0
296 1,2,4-trimethylbenzene 184,467 26,298 0 0 26,298 107,658 50,511 0 0
297 1,3,5-trimethylbenzene 45,726 23,633 0 0 23,633 3,436 12,676 0 5,981
300 Toluene 859,200 247,043 0 0 247,043 373,105 210,783 0 28,269
309* Nickel compounds 4,160 0 477 0 477 1,551 0 2,129 3
349 Phenol 478,261 12 14 0 26 0 478,235 0 0
355 Bis (2-ethylhexyl) phthalate 6,787 0 0 0 0 6,583 204 0 0
374 Hydrogen fluoride and its water-soluble salts 3,362 0 538 0 538 0 2,824 0 0
392 n-Hexane 133,782 335 0 0 335 113,367 20,080 0 0
400* Benzene 26,513 33 0 0 33 20,902 5,578 0 0
411* Formaldehyde 132,482 2,384 0 0 2,384 0 130,098 0 0
412 Manganese and its compounds 90,493 0 307 0 307 88,333 0 1,753 100
438 Methylnaphthalene 2,787 14 0 0 14 0 2,773 0 0
448 Diisocyanate (methylene-bis
[4,1-phenylene])
233,755 0 0 0 0 0 233,755 0 0
453 Molybdenum and its compounds 1,435 0 0 0 0 670 0 59 706
Total 3,308,849 610,830 1,684 0 612,514 1,002,651 1,592,070 4,696 96,918

Miyoshi Office (including plant)

Miyoshi Office (including plant)

Miyoshi Office

Address: 551-1 Higashi-sakaya-cho, Miyoshi-shi, Hiroshima, Japan
Operations started: May, 1974
Major products: Engines
ISO14001 certification: ISO14001 certification: June 2000
Site area (floorspace): 1,667,000 square meters (64,000 square meters)


  • Atmospheric pollutants
Atmospheric pollutants Unit Regulation Actual
(max.)
NOx Boilers ppm 250 170
Diesel engines ppm 950 670
Ash Boilers g/m³N 0.30 0.018
Diesel engines g/m³N 0.10 0.10
  • Water pollutants (Wastewater Drainage Destination: Basen River)
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH 5.8 to 8.6 7.8 7.2 7.5
BOD mg/L 70 3.8 1.1 2.3
SS mg/L 70 5.2 1.1 2.6
Oil mg/L 5 0.9 ND < 0.5
Fluorine mg/L 8 0.4 0.4 0.4
Zinc mg/L 2 ND ND ND
Soluble manganese mg/L 10 0.5 ND < 0.2
Total nitrogen mg/L 60 1.7 1.7 1.7
Total phosphorus mg/L 8 0.02 0.02 0.02
Coliform groups colonies/cm³ 3,000 14 Less than 10 < 10
Boron mg/L 10 0.04 0.04 0.04
Ammonia, ammonium, nitrous acid, and nitrous acid compounds mg/L 100 ND ND ND

The following substances were not detected: cadmium, cyanogen, organic phosphorus, lead, hexavalent chromium, arsenic, mercury, alkyl mercury, PCBs, trichloroethylene, tetrachloroethylene, dichloromethane, carbon tetrachloride, 1,2-dichloroethane, 1,1-dichloroethylene, 1,2- dichloroethylene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,3-dichloropropene, thiuram, simazine, thiobencarb, benzene, selenium, 1,4-dioxane, phenol, copper, soluble iron, and chromium.

  • Volume of PRTR-designated Pollutants Emitted and Transferred in FY March 2013

Unit:(kg/year)
(Items marked with an asterisk (*) are Class 1 designated chemical substances of which 500 kg/year or more are handled.)
(Other items are Class 1 designated chemical substances of which 1,000 kg/year or more are handled.)

Substance No. Substance group Amount handled   Volume emitted Amount consumed Amount disposed Amount transferred Amount recycled
Air Water Soil Waste products
53 Ethyl benzene 4,357 0 0 0 0 0 4,357 0 0
80 Xylene 18,484 2 0 0 2 0 18,482 0 0
87 Chromium and trivalent chromium compounds 0 0 0 0 0 0 0 0 0
296 1,2,4-trimethylbenzene 12,060 1 0 0 1 0 12,059 0 0
297 1,3,5-trimethylbenzene 2,027 0 0 0 0 0 2,027 0 0
300 Toluene 55,592 20 0 0 20 0 55,572 0 0
392 n-Hexane 7,160 18 0 0 18 0 7,142 0 0
400* Benzene 1,869 2 0 0 2 0 1,867 0 0
438 Methylnaphthalene 6,033 30 0 0 30 0 6,003 0 0
Total 107,582 73 0 0 73 0 107,509 0 0
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