|
|
| Location |
: |
Mihara, Hiroshima |
| Site area |
: |
89,422 m2 |
| Employees |
: |
573 (as of March 31, 2008) |
| Started operation |
: |
May 2002 |
| ISO14001 acquired |
: |
November 2003 |
| Main products |
: |
Laser diodes, LEDs, printed circuit boards, optical pickups |
|
|
INPUT
| |
Fiscal 2007 |
Fiscal 2006 |
| Energy |
Purchase of electricity (MWh) |
23,441 |
23,249 |
| Amount of solar power generation (MWh) |
24 |
2 |
| City gas (1,000m3) |
446 |
399 |
| Water |
Municipal water (km3) |
52 |
46 |
| Ground water (km3) |
178 |
159 |
| Total (km3) |
230 |
206 |
| Chemical substances (PRTR) |
Handled (t) |
3.4 |
2.8 |
OUTPUT
| |
Fiscal 2007 |
Fiscal 2006 |
| Greenhouse gases |
Amount of emissions
(t-CO2) |
10,538 |
10,718 |
| Water |
Drainage (km3) |
213 |
188 |
| Chemical substances (PRTR) |
Released (t) |
0 |
0 |
| Transferred (t) |
0.3 |
0.4 |
| Waste |
Amount of waste (t) |
298 |
299 |
| Landfill disposal rate (%) |
0.09 |
0.16 |
Air pollutant measurements
| Emitting facility |
Substance |
Unit |
Maximum permissible quantity |
Measured value (max.) |
| Regulations (prefectural) |
Industrial standard |
Sharp standard |
| Boiler |
SOx |
ppb (ground concentration) |
14 |
12 |
0.04 |
0.0052 |
| NOx |
ppm |
150 |
150 |
100 |
53 |
| Soot and dust |
g/Nm3 |
0.1 |
0.1 |
0.005 |
Less than 0.003 |
Water pollutant measurements (Sewerage Law)
| Parameter |
Unit |
Maximum permissible quantity |
Measured value (max.) |
| Regulations (prefectural) |
Industrial standard |
Sharp standard |
| pH |
pH |
5.8-8.6 |
5.8-8.6 |
6.0-8.0 |
6.7-7.3 |
| Fluorine compound |
mg/l |
15 |
8 |
8 |
1.4 |
| BOD |
mg/l |
max<160,ave<120 |
max<160,ave<120 |
120 |
72 |
| Suspended solid (SS) |
mg/l |
max<200,ave<150 |
max<200,ave<150 |
100 |
17 |
| Copper |
mg/l |
3 |
3 |
3 |
2.3 |
| Zinc |
mg/l |
5 |
5 |
5 |
0.09 |
| Dissolved iron |
mg/l |
10 |
10 |
10 |
0.1 |
| Total nitrogen |
mg/l |
max<120,ave<60 |
max<120,ave<60 |
60 |
24 |
| Total phosphorus |
mg/l |
max<16,ave<8 |
max<16,ave<8 |
8 |
2.0 |
PRTR totalization
(Unit: kg)
| PRTR No. |
Chemical |
Handling quantity |
Release |
Transfer |
Consumption |
Removal |
Recycle |
| To atmosphere |
To public water area |
To sewage |
Out of site |
| 283 |
Hydrogen fluoride and its water-soluble salts |
3,415 |
0 |
0 |
342 |
0 |
0 |
0 |
0 |
Noise/vibration measurements
(Unit: dB)
|
Classification |
Maximum permissible quantity |
Measured value (max.) |
| Regulations (municipal) |
Industrial standard |
Sharp standard |
| Noise |
Morning |
70 |
60 |
60 |
44 |
| Afternoon |
70 |
60 |
60 |
49 |
| Evening |
70 |
60 |
60 |
47 |
| Night |
60 |
50 |
50 |
47 |
| Vibration |
Day |
65 |
65 |
65 |
43 |
| Night |
60 |
60 |
60 |
46 |
COD, nitrogen, phosphorus emission
No emission of COD, nitrogen or phosphorus to the lakes or seas for which emission standards are instituted.
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