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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 79
150 65
Drying ovens ppm 250 62
230 38
Melting furnaces ppm 180 60
Diesel engines ppm 950 460
Heating furnaces ppm 200 34
180 49
150 89
130 34
Ash Boilers g/m³N 0.30 0.01
0.10 0.0016
Drying ovens g/m³N 0.4 0.007
0.35 0.004
0.2 0.009
0.15 0.0051
Melting furnaces g/m³N 0.4 0.017
0.20 0.1
0.10 0.001
Diesel engines g/m³N 0.10 0.02
Heating furnaces g/m³N 0.4 0.014
0.25 0.017
0.20 0.087
SOx K-value regulation - 7 1.51
VOC Painting facilities ppm 700 335
Washing facilities ppm 400 205
  • Water pollutants (Wastewater Drainage Destination: Enko River and Kaita Bay)
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH (freshwater) - 5.8~8.6 7.4 6.5 7.0
pH (seawater) - 5.5~9.0 7.5 6.9 7.2
BOD mg/L 120 8.5 ND <1.8
COD mg/L 15 13 1.6 4.7
SS mg/L 150 9 ND <2.8
Oil mg/L 5 ND ND ND
Fluorine (freshwater) mg/L 8 0.2 ND <0.1
Fluorine (seawater) mg/L 15 7.9 ND <3.4
Zinc mg/L 2 0.41 ND <0.07
Soluble manganese mg/L 10 0.9 ND <0.2
Total nitrogen mg/L 60 9.6 1.5 4.3
Total phosphorus mg/L 8 0.63 ND <0.09
Coliform groups colonies/cm³ 3,000 820 ND <32
Boron (freshwater) mg/L 10 0.2 0.11 0.16
Boron (seawater) mg/L 230 2.4 0.2 1.0
Ammonia, ammonium, nitrous acid, and nitrous acid compounds mg/L 100 3.7 1.1 2.2

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 2014

 

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.
Unit:(kg/year)


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 24,317 0 389 0 389 21,253 2,675 0 0
37 4,4'-isopropylidenediphenol 1,468 0 0 0 0 0 1,468 0 0
53 Ethyl benzene 161,874 82,217 0 0 82,217 48,125 26,157 0 5,375
80 Xylene 588,877 262,460 0 0 262,460 200,954 68,405 0 57,058
87 Chromium and trivalent chromium compounds 60,418 0 0 0 0 59,378 0 1,040 0
88* Hexavalent chromium compounds 2,537 0 0 0 0 1,497 1,040 0 0
258 1,3,5,7-tetraazetoricyclo [3.3.1.13.7] decane 73,592 0 0 0 0 0 73,592 0 0
277 Triethylamine 229,797 1,379 0 0 1,379 0 228,418 0 0
296 1,2,4-trimethylbenzene 191,705 32,870 0 0 32,870 125,536 33,299 0 0
297 1,3,5-trimethylbenzene 42,019 23,785 0 0 23,785 3,398 10,269 0 4,567
300 Toluene 815,626 234,531 0 0 234,531 429,843 124,762 0 26,490
309* Nickel compounds 4,376 0 525 0 525 1,510 0 2,341 0
349 Phenol 419,854 10 13 0 23 0 419,831 0 0
355 Bis (2-ethylhexyl) phthalate 16,589 0 0 0 0 16,091 498 0 0
374 Hydrogen fluoride and its water-soluble salts 3,522 0 564 0 564 0 2,958 0 0
392 n-Hexane 138,139 346 0 0 346 134,175 3,618 0 0
400* Benzene 26,603 33 0 0 33 24,539 2,031 0 0
411* Formaldehyde 120,954 2,055 0 0 2,055 0 118,899 0 0
412 Manganese and its compounds 84,815 0 336 0 336 82,483 0 1,922 74
438 Methylnaphthalene 1,901 10 0 0 10 0 1,891 0 0
448 Diisocyanate (methylene-bis
[4,1-phenylene])
184,595 0 0 0 0 0 184,595 0 0
453 Molybdenum and its compounds 1,209 0 0 0 0 652 0 47 510
302 Naphthalene 19,009 206 0 0 206 0 18,749 0 54
Total 3,213,796 639,902 1,827 0 641,729 1,149,434 1,323,155 5,350 94,128

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 250 180
Diesel engines ppm 950 210
Ash Boilers g/m³N 0.30 0.013
Diesel engines g/m³N 0.10 0.074
  • Water pollutants (Wastewater Drainage Destination: Basen River)
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH 5.8~8.6 7.6 7.2 7.4
BOD mg/L 70 3.4 0.7 2
SS mg/L 70 5.6 1.4 2.8
Oil mg/L 5 ND ND ND
Fluorine mg/L 8 0.4 0.4 0.4
Soluble manganese mg/L 10 0.4 ND <0.2
Total nitrogen mg/L 60 4.8 4.8 4.8
Total phosphorus mg/L 8 0.08 0.08 0.08
Coliform groups colonies/cm³ 3,000 ND ND ND
Boron mg/L 10 0.04 0.04 0.04
Ammonia, ammonium, nitrous acid, and nitrous acid compounds mg/L 100 2 2 2

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 2014

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.
Unit:(kg/year)

Substance No. Substance group Amount handled   Volume emitted Amount consumed Amount disposed Amount transferred Amount recycled
Air Water Soil Waste products
53 Ethyl benzene 4,068 0 0 0 0 0 4,068 0 0
80 Xylene 17,206 2 0 0 2 0 17,204 0 0
296 1,2,4-trimethylbenzene 11,230 0 0 0 0 0 11,230 0 0
297 1,3,5-trimethylbenzene 2,033 0 0 0 0 0 2,033 0 0
300 Toluene 53,260 19 0 0 19 0 53,241 0 0
392 n-Hexane 6,275 16 0 0 16 0 6,259 0 0
400* Benzene 1,716 2 0 0 2 0 1,714 0 0
438 Methylnaphthalene 6,112 31 0 0 31 0 6,081 0 0
Total 101,900 70 0 0 70 0 101,830 0 0
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