Hiroshima Plant

• Atmospheric pollutants

Atmospheric pollutants		Units	Regulation	Actual(max.)
NOx	Boilers	ppm	300	210
			230	210
			180	97
			150	68
	Drying ovens	ppm	250	140
			230	56
	Melting furnaces	ppm	180	140
	Diesel engines	ppm	950	710
	Heating furnaces	ppm	200	61
			180	36
			150	84
			130	73
	Roasting furnaces	ppm	220	47
Ash	Boilers	g/m3N	0.30	0.04
			0.25	0.14
			0.20	0.01
			0.10	0.0034
	Drying ovens	g/m3N	0.40	0.0013
			0.35	0.0014
			0.20	0.0022
			0.15	0.0027
	Melting furnaces	g/m3N	0.40	0.1
			0.20	0.1
			0.10	0.0085
	Diesel engines	g/m3N	0.10	0.018
	Heating furnaces	g/m3N	0.40	0.039
			0.25	0.095
			0.20	0.043
	Roasting furnaces	g/m3N	0.10	‹ 0.001
SOx	K-value regulation	-	7	2.3
VOC	Painting facilities	ppm	700	465
	Washing facilities	ppm	400	184

• Water pollutants

Wastewater drainage to Enko River and Kaita Bay

Water pollutants	Units	Regulation	Actual
			Max.	Min.	Avg.
pH (freshwater)	-	5.8 - 8.6	7.4	6.5	7
pH (seawater)	-	5.5 - 9.0	7.6	6.7	7
BOD	mg/l	120	4.4	ND	‹ 1.9
COD	mg/l	15	11.2	1	4.3
SS	mg/l	150	7	ND	‹ 2.9
Oil	mg/l	5	0.9	ND	‹ 0.5
Copper	mg/l	3	0.03	ND	‹ 0.01
Fluorine (freshwater)	mg/l	8	0.2	ND	‹ 0.1
Fluorine (seawater)	mg/l	15	4.3	0.3	1.9
Zinc	mg/l	5	1.9	0.01	0.43
Soluble iron	mg/l	10	0.1	ND	‹ 0.1
Soluble manganese	mg/l	10	0.9	ND	‹ 0.2
Total nitrogen	mg/l	60	16	1.7	6.2
Total phosphorus	mg/l	8	2.6	ND	‹ 0.34
Coliform groups	colonies/cm3	3,000	1,600	ND	‹ 108
Phenol	mg/l	5	0.4	ND	‹ 0.03
Chromium	mg/l	2	0.02	ND	‹ 0.01
Boric acid (freshwater)	mg/l	10	0.43	0.22	0.33
Boric acid (seawater)	mg/l	230	1.7	0.13	1.05
Ammonia, ammonium, nitrous acid and nitrous acid compounds	mg/l	100	10	0.4	3.12

The following substances were not detected: cadmium, cyanogen, organic phosphorus, lead, hexavalent chromium, arsenic, mercury, alkyl mercury, PCB, 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, and selenium.

• PRTR (Pollution Release and Transfer Register)

(* 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)
(Unit: kg/year)

Substance No.	Substance group	Amount handled	Volume emitted				Amount consumed	Amount disposed	Amount transferred	Recycled
			Air	Water	Soil	Total			Waste product
1	Water-soluble zinc compounds	19,809	0	274	0	274	15,958	0	3,577	0
29	4,4'- isopropylidenediphenol	3,200	0	0	0	0	0	3,200	0	0
30	Polymer of 4,4'- isopropylidenediphenol and 1-chloro-2,3- epoxypropane (in liquid state only)	5,015	0	0	0	0	5,015	0	0	0
40	Ethyl benzene	192,188	106,784	0	0	106,784	43,201	40,110	0	2,093
43	Ethylene glycol	1,628,586	10	0	0	10	1,628,576	0	0	0
63	Xylene	834,816	350,264	0	0	350,264	198,556	179,610	0	106,386
68	Chromium and trivalent chromium compounds	75,694	0	0	0	0	72,852	0	2,830	12
69*	Hexavalent chromium compounds	6,917	0	0	0	0	4,087	2,830	0	0
198	1,3,5,7- tetraazetoricyclo [3.3.1.13.7] decane	129,223	0	0	0	0	0	129,223	0	0
224	1,3,5- trimethylbenzene	65,997	25,948	0	0	25,948	13,061	14,409	0	12,579
227	Toluene	1,205,107	326,673	0	0	326,673	467,439	393,592	0	17,403
231	Nickel	6,039	0	0	0	0	6,030	0	0	9
232*	Nickel compounds	3,049	0	369	0	369	1,048	0	1,632	0
253	Hydrazine	1,066	0	0	0	0	0	1,066	0	0
266	Phenol	717,979	17	21	0	38	0	717,941	0	0
272	Bis (2-ethylhexyl) phthalate	8,032	0	0	0	0	7,791	241	0	0
283	Hydrogen fluoride and its water- soluble salts	4,489	0	718	0	718	0	0	3,771	0
299*	Benzene	30,048	38	0	0	38	18,404	11,606	0	0
310	Formaldehyde	270,142	2,749	0	0	2,749	0	267,393	0	0
311	Manganese and its compounds	393,057	0	281	0	281	391,183	0	1,557	36
346	Molybdenum and its compounds	5,088	0	0	0	0	2,874	0	109	2,105
Total		5,605,541	812,483	1,663	0	814,146	2,876,075	1,761,221	13,476	140,623

Miyoshi Office (including plant)

• Atmospheric pollutants

Atmospheric pollutants		Units	Regulation	Actual (max.)
NOx	Boilers	ppm	250	180
	Diesel engines	ppm	950	640
Ash	Boilers	g/m3N	0.30	0.11
	Diesel engines	g/m3N	0.10	0.06
SOx	K-value regulation	-	17.5	1.5

• Water pollutants

Wastewater drainage to Basen River

Water pollutants	Units	Regulation	Actual
			Max.	Min.	Avg.
pH	-	5.8~8.6	7.7	7	7.4
BOD	mg/l	70	6	1	2.6
SS	mg/l	70	4.5	0.6	2.4
Oil	mg/l	5	ND	ND	ND
Fluorin	mg/l	8	0.3	0.3	0.3
Soluble manganese	mg/l	10	0.3	ND	‹ 0.2
Total nitrogen	mg/l	60	0.4	0.4	0.4
Total phosphorus	mg/l	8	0.01	0.01	0.01
Coliform groups	colonies/cm3	3,000	142	ND	29
Boric acid	mg/l	10	0.03	0.03	0.03
Ammonia, ammonium, nitrous acid and nitrous acid compounds	mg/l	100	0.9	0.9	0.9
Lead	mg/l	0.1	0.02	ND	‹ 0.01

The following substances were not detected: cadmium, cyanogen, organic phosphorus, hexavalent chromium, arsenic, mercury, alkyl mercury, PCB, 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, zinc, soluble iron, copper and chromium.

• PRTR (Pollution Release and Transfer Register)

(* 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)
(Unit: kg/year)

Substance No.	Substance group	Amount handled	Volume emitted				Amount consumed	Amount disposed	Amount transferred	Recycled
			Air	Water	Soil	Total			Waste product
40	Ethyl benzene	8,257	0.96	0	0	0.96	0	8,256	0	0
63	Xylene	37,870	3.9	0	0	3.9	0	37,866	0	0
224	1,3,5-trimethylbenzene	3,178	0.11	0	0	0.11	0	3,178	0	0
227	Toluene	97,196	35	0	0	35	0	97,161	0	0
299*	Benzene	3,262	4.1	0	0	4.1	0	3,258	0	0
Total		149,763	44	0	0	44	0	149,719	0	0