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Environmental data
Environmental data for fiscal 2004
[Nakanoseki District]
Atmospheric pollutants Units Regulation
Actual
(max.)
Water pollutants
Units
Regulation
Wastewater drainage to Oumi Bay
Actual
Max. Min. Avg.
NOx
Boilers
ppm
180
64
pH
5.09.0
8
7.6
7.8
Boilers
g/m 3 N
0.30
0.017
COD
mg/R
40
19
3.6
7.6
0.25
0.005
SS
mg/R
30
13
ND
0.5
Ash
Heating furnace
g/m 3 N
0.20
0.036
Oil
mg/R
2
0.9
ND
0.5
Melting furnaces
g/m 3 N
0.20
0.048
Copper
mg/R
3
0.01
ND
0.01
SOx
K regulation
Total regulation
m 3 N/h
4.5
27.90
0.50
1.10
Zinc
Total nitrogen
mg/R
mg/R
5
60
0.12
9.4
0.09
2.7
0.11
5.8
Total phosphorous
mg/R
8
0.41
0.36
0.39
Coliform groups
colonies/cm 3
3000
200
36
118
Boric acid
mg/R
230
0.5
0.3
0.4
Fluorine
mg/R
15
0.74
0.15
0.45
Ammonia, ammonium,
nitrous acid and nitrous
acid compounds
PRTR (Pollution Release and Transfer Register) for fiscal 2004
mg/R
100
The following regulated substances were not detected: cadmium, cyanogen, lead, hexavalent chromium, arsenic,
mercury, alkyl mercury, 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, soluble iron, soluble manganese, chromium and
phenol.
( indicates Class 1 Designated Chemical Substance of which 500 kg/year or more are handled)
(Other indications are of Class 1 Designated Chemical Substances of which 1000 kg/year or more are handled)
6.8
3.3
5.1
[Nishinoura District]
Substance
No.
Substance group
Amount
handled
Volume emitted
Air Water Soil
Total
Amount
consumed
Amount
disposed
(Units: kg/year)
Amount transferred
Waste product Recycled
1
Water-soluble zinc compounds
15,470
0
243
0
243
13,559
0
1,668
0
30
Polymer of 4,4'-isopropylidenediphenol and 1-chloro-2,3-epoxypropane
3,095
0
0
0
0
3,095
0
0
0
40
Ethyl benzene
169,356
81,926
0
0
81,926
70,047
11,781
0
5,602
43
Ethylene glycol
1,563,144
9
0
0
9
1,563,135
0
0
0
63
Xylene
685,979
269,079
0
0
269,079
328,810
39,749
0
48,341
224
1,3,5-trimethylbenzene
71,283
25,278
0
0
25,278
23,779
3,407
0
18,819
227
Toluene
990,924
257,442
0
0
257,442
666,479
40,737
0
26,266
232
Nickel compounds
2,975
0
360
0
360
1,024
0
1,591
0
272
Bis(2-ethylhexyl) phthalate
18,283
0
0
0
0
17,735
548
0
0
299
Benzene
26,586
95
0
0
95
26,244
247
0
0
311
Manganese and its compounds
6,275
0
274
0
274
4,201
0
1,560
240
Total
3,553,370
634,072
634
0
634,706
2,718,108
96,469
4,819
99,268
[Nakanoseki District]
Substance
No.
Substance group
Amount
handled Air Water Soil
Total
Amount
consumed
Amount
disposed
Amount transferred
Waste product Recycled
16
2-aminoethanol
1,123
0
0
0
0
0
1,123
0
0
283
Hydrogen fluoride and its water-soluble salts
1,640
33
0
0
33
0
0
0
1,607
Total
2,763
33
0
0
33
0
1,123
0
1,607
Social & Environmental Report 2005