 |
Honda Engineering Co., Ltd.
| Address |
6-1 Hagadai, Haga Machi, Haga Gun, Tochigi Prefecture |
| Established |
1990 |
| Major Responsibilities |
General machinery and equipment
(development, design and manufacture of machine tools, dies
and functional parts) |
| Water discharge point |
Nomoto River via Haga Industrial Park Treatment Center
(domestic and industrial water) |
| ISO 14001 acquired |
July 1997 |
Water Quality
| Item |
Unit |
Regulations
(incl. agreed standards) |
Voluntary standards |
Measurement results |
| Maximum (minimum) |
Average |
| Hydrogen ion concentration |
pH |
5.6–8.6 |
5.6–8.6 |
8.1 (7.1) |
7.5 |
| Biochemical oxygen demand (BOD) |
mg/L |
25 |
17.5 |
3.1 (< 0.5) |
0.8 |
| Chemical oxygen demand (COD) |
mg/L |
25 |
17.5 |
5.2 (1.7) |
2.9 |
| Suspended solids (SS) |
mg/L |
50 |
35 |
< 2.8 (< 1) |
1.2 |
| Oil content |
mg/L |
5 |
3.5 |
< 1.0 |
< 1.0 |
| Phenols |
mg/L |
1 |
0.7 |
0.05 (< 0.05) |
0.05 |
| Copper and its compounds |
mg/L |
3 |
2.1 |
< 0.05 |
< 0.05 |
| Zinc and its compounds |
mg/L |
2 |
1.4 |
< 0.05 |
< 0.05 |
| Soluble iron and its compounds |
mg/L |
3 |
2.1 |
< 0.05 |
< 0.05 |
| Soluble manganese and its compounds |
mg/L |
3 |
2.1 |
0.02 (0.01) |
0.015 |
| Total chromium |
mg/L |
2 |
1.4 |
< 0.02 |
< 0.02 |
| Fluorine content |
mg/L |
8 |
5.6 |
0.3 (< 0.3) |
0.3 |
| Colon bacillus colony count |
Parts/cm3 |
3000 |
2100 |
0 |
0 |
| Nitrogen |
mg/L |
20 |
14 |
8.8 (2.2) |
4.17 |
| Phosphorous |
mg/L |
2 |
1.4 |
0.95 (0.1) |
0.43 |
| Cadmium and its compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Cyanides |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Organic phosphorus compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Lead and its compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Hexavalent chromium compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Arsenic and its compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Mercury and its compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Alkyl mercury compounds |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| PCB |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Trichlorethylene |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Tetrachloroethylene |
mg/L |
Figures not generated |
Figures not available |
Figures not available |
Figures not available |
| Dichloromethane |
mg/L |
0.2 |
0.14 |
< 0.002 |
< 0.002 |
| Carbon tetrachloride |
mg/L |
0.02 |
0.014 |
< 0.001 |
< 0.001 |
| 1, 2 Dichloromethane |
mg/L |
0.04 |
0.028 |
< 0.0011 |
< 0.0011 |
| 1, 1 Dichloromethane |
mg/L |
0.2 |
0.14 |
< 0.002 |
< 0.002 |
| cis-1,2 Dichloromethane |
mg/L |
0.4 |
0.28 |
< 0.004 |
< 0.004 |
| 1,1,1 Trichloroethane |
mg/L |
3 |
2.1 |
< 0.001 |
< 0.001 |
| 1,1,2 Trichloroethane |
mg/L |
0.06 |
0.042 |
< 0.0006 |
< 0.0006 |
| 1, 3 Dichloropropene |
mg/L |
0.02 |
0.014 |
< 0.0002 |
< 0.0002 |
| Thiram |
mg/L |
0.06 |
0.042 |
< 0.001 |
< 0.001 |
| Simazine |
mg/L |
0.03 |
0.021 |
< 0.001 |
< 0.001 |
| Thiobencarb |
mg/L |
0.2 |
0.14 |
< 0.002 |
< 0.002 |
| Benzene |
mg/L |
0.1 |
0.07 |
< 0.001 |
< 0.001 |
| Selenium and its compounds |
mg/L |
0.1 |
0.07 |
< 0.01 |
< 0.01 |
| Boron |
mg/L |
1 |
0.7 |
0.6 (0.4) |
0.5 |
| Ammonia and nitrous acid compounds |
mg/L |
100 |
70 |
5.5 (2.8) |
4.15 |
Air Quality
| Item |
Unit |
Regulations
(incl. agreed standards) |
Voluntary standards |
Measurement results |
| Maximum (minimum) |
Average |
| Particulates |
g/Nm3 |
0.2 |
0.1 |
< 0.005 |
< 0.005 |
| Nitrogen oxides |
ppm |
180 |
90 |
8.7 |
8.7 |
| Hydrogen chloride |
mg/Nm3 |
40 |
20 |
< 2.8 |
< 2.8 |
| Sulphur oxides |
Nm3/h |
1.51 |
0.755 |
< 0.01 |
< 0.01 |
(Unit: kg)PRTR Listed Substances
| Substance |
Volume handled |
Volume discharged |
Volume transferred |
Recycling |
Volume disposed |
Volume consumed (transferred to products) |
| Atmosphere |
Released into public water system |
Sewage |
Waste disposal sites outside company |
| Xylene |
1,085 |
397 |
0 |
0 |
283 |
0 |
405 |
0 |
| Nickel compounds |
817 |
0 |
0 |
0 |
813 |
0 |
0 |
4 |
| Total |
1,902 |
397 |
0 |
0 |
1,096 |
0 |
405 |
4 |
Noise
| Time |
Unit |
Voluntary standards |
Measurement results |
| Daytime |
dB |
65 |
51 |
| Early evening |
dB |
60 |
52 |
| Nighttime |
dB |
50 |
48 |
Vibration
| Time |
Unit |
Voluntary standards |
Measurement results |
| Daytime |
dB |
65 |
43 |
| Nighttime |
dB |
55 |
< 30 |
Odor
| Item |
Unit |
Voluntary standards |
Measurement results |
| Ammonia |
ppm |
1 |
< 0.1 |
| Methyl mercaptan |
ppm |
0.002 |
< 0.001 |
| Hydrogen sulfide |
ppm |
0.02 |
< 0.002 |
| Methyl sulfide |
ppm |
0.01 |
< 0.001 |
| Methyl disulfide |
ppm |
0.009 |
< 0.001 |
| Trimethylamine |
ppm |
0.005 |
< 0.001 |
| Acetaldehyde |
ppm |
0.05 |
< 0.005 |
| Propionaldehyde |
ppm |
0.05 |
< 0.005 |
| Styrene |
ppm |
0.4 |
< 0.04 |
| Propionic acid |
ppm |
0.03 |
< 0.003 |
| Normal butyrate |
ppm |
0.001 |
< 0.001 |
| Isovaleric acid |
ppm |
0.001 |
< 0.001 |
| Normal valerate |
ppm |
0.0009 |
< 0.0009 |
| Normal butylaldehyde |
ppm |
0.009 |
< 0.003 |
| Isobutyl aldehyde |
ppm |
0.02 |
< 0.003 |
| Normal valeraldehyde |
ppm |
0.009 |
< 0.003 |
| Isovaleraldehyde |
ppm |
0.003 |
< 0.003 |
| Isobutanol |
ppm |
0.9 |
< 0.009 |
| Ethyl acetate |
ppm |
3 |
< 0.3 |
| Methyl isobutyl ketone |
ppm |
1 |
< 0.1 |
| Toluene |
ppm |
10 |
< 1 |
| Xylene |
ppm |
1 |
< 0.1 |
|
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