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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 Unit Regulation Actual(max.)
NOx Boilers ppm 180 84
150 65
Drying ovens ppm 250 73
230 24
Melting furnaces ppm 180 96
Diesel engines ppm 950 610
Heating furnaces ppm 200 24
180 57
150 89
130 45
Roasting furnaces ppm 220 35
Ash Boilers g/m³N 0.30 0.012
0.10 0.0012
Drying ovens g/m³N 0.4 0.0054
0.35 < 0.002
0.2 0.0083
0.15 0.0054
Melting furnaces g/m³N 0.4 0.02
0.20 0.054
0.10 0.001
Diesel engines g/m³N 0.10 0.017
Heating furnaces g/m³N 0.4 0.0064
0.25 0.014
0.20 0.055
Roasting furnaces g/m³N 0.10 0.003
SOx K-value regulation - 7 1.14
VOC Painting facilities ppm 700 296
Washing facilities ppm 400 124
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH (freshwater) - 5.8 to 8.6 7.4 6.6 7.0
pH (seawater) - 5.5 to 9.0 7.6 6.3 7.1
BOD mg/L 120 3.4 ND < 1.6
COD mg/L 15 11 1.3 4.2
SS mg/L 150 7.5 ND < 3
Oil mg/L 5 ND ND ND
Copper mg/L 3 0.04 ND < 0.01
Fluorine (freshwater) mg/L 8 0.2 ND < 0.1
Fluorine (seawater) mg/L 15 7.3 0.1 2.6
Zinc mg/L 2 0.67 ND < 0.09
Soluble manganese mg/L 10 0.7 ND < 0.2
Total nitrogen mg/L 60 9.6 1.8 4
Total phosphorus mg/L 8 0.4 ND < 0.08
Coliform groups colonies/cm³ 3,000 66 Less than 10 < 14
Phenol mg/L 5 0.13 ND < 0.02
Chromium mg/L 2 0.03 ND < 0.01
Boron (freshwater) mg/L 10 0.2 0.17 0.19
Boron (seawater) mg/L 230 1.5 0.11 0.9
Ammonia, ammonium, nitrous acid, and nitrous acid compounds mg/L 100 4.1 1.3 2.6

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, and soluble iron.

 

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 21,977 0 352 0 352 19,208 0 2,417 0
37 4,4'-isopropylidenediphenol 4,395 0 0 0 0 0 4,395 0 0
53 Ethyl benzene 138,938 66,910 0 0 66,910 47,142 21,157 0 3,729
80 Xylene 606,892 252,642 0 0 252,642 196,973 87,815 0 69,462
87 Chromium and trivalent chromium compounds 77,596 0 0 0 0 76,182 0 1,414 0
88* Hexavalent chromium compounds 3,449 0 0 0 0 2,035 1,414 0 0
258 1,3,5,7-tetraazetoricyclo [3.3.1.13.7] decane 105,032 0 0 0 0 0 105,032 0 0
277 Triethylamine 266,843 1,601 0 0 1,601 0 265,242 0 0
296 1,2,4-trimethylbenzene 204,168 34,091 0 0 34,091 123,344 46,733 0 0
297 1,3,5-trimethylbenzene 54,128 29,397 0 0 29,397 4,384 10,624 0 9,723
300 Toluene 894,156 267,264 0 0 267,264 431,275 177,387 0 18,230
309* Nickel compounds 3,939 0 473 0 473 1,359 0 2,107 0
349 Phenol 597,206 15 18 0 33 0 597,173 0 0
355 Bis (2-ethylhexyl) phthalate 15,023 0 0 0 0 14,572 451 0 0
374 Hydrogen fluoride and
its water-soluble salts
4,004 0 641 0 641 0 0 3,363 0
392 n-Hexane 147,355 369 0 0 369 128,332 18,654 0 0
400* Benzene 28,731 36 0 0 36 23,818 4,877 0 0
411* Formaldehyde 170,525 1,622 0 0 1,622 0 168,903 0 0
412 Manganese and its compounds 212,567 0 308 0 308 210,389 0 1,758 112
438 Methylnaphthalene 4,329 22 0 0 22 0 4,307 0 0
448 Diisocyanate (methylene-bis [4,1-phenylene]) 255,723 0 0 0 0 0 255,723 0 0
453 Molybdenum and
its compounds
2,381 0 0 0 0 1,104 0 114 1,163
Total 3,819,357 653,969 1,792 0 655,761 1,280,117 1,769,887 11,173 102,419

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 Unit Regulation Actual
(max.)
NOx Boilers ppm 250 170
Diesel engines ppm 950 610
Ash Boilers g/m³N 0.30 0.093
Diesel engines g/m³N 0.10 0.075
Water pollutants Unit Regulation Actual
Max. Min. Avg.
pH 5.8 to 8.6 7.6 7.1 7.4
BOD mg/L 70 4.8 0.9 2.1
SS mg/L 70 6 0.6 2.4
Oil mg/L 5 ND ND ND
Fluorine mg/L 8 0.2 0.2 0.2
Zinc mg/L 2 ND ND ND
Soluble manganese mg/L 10 0.4 ND < 0.2
Total nitrogen mg/L 60 0.6 0.6 0.6
Total phosphorus mg/L 8 0.02 0.02 0.02
Coliform groups colonies/cm³ 3,000 53 Less than 10 < 16
Boron mg/L 10 0.03 0.03 0.03
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, cis 1.2-dichloroethylene, 1.1.1-trichloroethane, 1.1.2-trichloroethane, 1.3-dichloropropene, thiuram, simazine, thiobencarb, benzene, selenium, phenol, copper, soluble iron, and chromium.

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 4,315 0.49 0 0 0.49 0 4,315 0 0
80 Xylene 18,288 2.1 0 0 2.1 0 18,286 0 0
296 1,2,4-trimethylbenzene 11,949 0.69 0 0 0.69 0 11,948 0 0
297 1,3,5-trimethylbenzene 2,126 0.07 0 0 0.07 0 2,126 0 0
300 Toluene 56,202 20 0 0 20 0 56,182 0 0
392 n-Hexane 6,745 17 0 0 17 0 6,728 0 0
400* Benzene 1,827 2.3 0 0 2.3 0 1,825 0 0
438 Methylnaphthalene 6,065 30 0 0 30 0 6,035 0 0
Total 107,517 73 0 0 73 0 107,445 0 0
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