Environmental Report

Environmental Performance


 

Water-Quality Measurements

Units: mg / liter; pH; parts per cubic meter
ND: Not detected
Dash ("- ") indicates that the item is not regulated or was not measured.
Values: Highest measurements
    Regulated Substance Takatsuka Unit Ohno Unit SII NanoTecnology
/Oyama Unit		 Tochigi Unit Sendai Unit Morioka Seiko
Instruments Inc.		 Akita Unit
Results of Water-Quality and Air-Quality Measurements 1 pH 7.3 - 7.8 6.5 - 8.0 6.2 - 8.1 6.8 - 7.5 6.7 - 7.2 7.1 - 7.6 6.6 - 7.2
2 BOD 8 3.6 6.7 7.4 60 7.4 5.8
3 COD － － 9.3 － － 5.4 －
4 Suspended solids 6 1 4 4 1.3 2 24
5 n-Hex 0.6 ND － ND 2.9 ND ND
6 Phenols ND ND － ND ND ND －
7 Copper ND 0.01 － ND 0.04 0.42 －
8 Zinc 0.12 0.14 － ND 0.06 0.042 －
9 Iron 0.62 0.09 － 0.28 0.1 0.25 －
10 Manganese 0.06 0.07 － ND 0.19 ND －
11 Total chromium ND ND － ND ND ND －
12 Number of coliform group ND ND 300 1 － ND 30
13 Nitrogen 17 19 － 23 － － －
14 Phosphorus 0.098 1.3 － 0.2 － － －
Results of Water-Quality and Air-Quality Measurements 1 Cadmium ND ND － － ND ND ND
2 Cyanogen ND ND － ND ND ND ND
3 Organic phosphorus ND ND － － ND ND ND
4 Lead ND ND － ND ND ND ND
5 Hexavalent chromium ND ND － － ND ND ND
6 Arsenic ND ND － － ND ND ND
7-1 Total mercury ND ND － － ND ND ND
7-2 Alkyl mercury ND ND － － － ND ND
8 PCB ND ND － － ND ND ND
9 Trichloroethylene ND ND － － ND ND ND
10 Tetrachloroethylene ND ND － － ND ND ND
11 Dichloromethane ND ND － － ND ND ND
12 Carbon tetrachloride ND ND － － ND ND ND
13 1,2-dichloroethane ND ND － － ND ND ND
14 1,1-dichloroethylene ND ND － － ND ND ND
15 dichloroethylene ND ND － － ND ND ND
16 1,1,1-trichloroethane ND ND － － ND ND ND
17 1,1,2-trichloroethane ND ND － － ND ND ND
18 1,3-dichloropropane ND ND － － ND ND ND
19 Thiuram ND ND － － ND ND ND
20 Simazine ND ND － － ND ND ND
21 Thiobencarb ND ND － － ND ND ND
22 Benzene ND ND － ND ND ND ND
23 Selenium ND ND － － ND ND ND
24 Boron 0.09 0.19 － － 0.2 1.56 0.02
25 Fluorine 1.5 0.3 － 0.3 0.75 ND ND
26 Ammonia, Ammonia compounds, Nitrous acid compounds, Nitrates 51.5 1.3 － 9.8 1.7 6.5 6.4




Air-Quality Measurements

ND: Not detected
Dash ("- ") indicates that the item is not regulated or was not measured.
Values: Highest measurements
Regulated Substance Takatsuka Unit Ohno Unit SII NanoTecnology
/Oyama Unit		 Sendai Unit Morioka Seiko
Instruments Inc.		 Akita Unit
Particulate matter (g/m3N) ND ND ND ND ND ND
SOx (m3N/h) ND ND ND ND ND ND
NOx (ppm) 71.6 38.6 32.6 34 61 88