Hiroshima Plant

• Atmospheric pollutants

Atmospheric pollutants		Units	Regulation	Actual(max.)
NOx	Boilers	ppm	300	190
			230	210
			180	87
			150	65
	Drying ovens	ppm	250	160
			230	24
	Melting furnaces	ppm	180	86
	Diesel engines	ppm	950	620
	Heating furnaces	ppm	200	55
			180	37
			150	90
			130	70
	Roasting furnaces	ppm	220	57
Ash	Boilers	g/m3N	0.30	0.019
			0.25	0.1
			0.20	0.0072
			0.10	0.0015
	Drying ovens	g/m3N	0.4	0.0013
			0.35	0.0015
			0.2	0.0025
			0.15	0.005
	Melting furnaces	g/m3N	0.4	0.066
			0.20	0.13
			0.10	0.024
	Diesel engines	g/m3N	0.10	0.018
	Heating furnaces	g/m3N	0.4	0.0051
			0.25	0.05
			0.20	0.1
	Roasting furnaces	g/m3N	0.10	0.0013
SOx	K-value regulation	-	7	1.64
VOC	Painting facilities	ppm	700	351
	Washing facilities	ppm	400	120

• Water pollutants

Wastewater drainage to Enko River and Kaita Bay

Water pollutants	Units	Regulation	Actual
			Max.	Min.	Avg.
pH (freshwater)	-	5.8 - 8.6	7.5	6.8	7.2
pH (seawater)	-	5.5 - 9.0	7.6	7.0	7.3
BOD	mg/l	120	4.0	1.0	1.9
COD	mg/l	15	13	1.4	4.7
SS	mg/l	150	8.5	ND	‹ 2.7
Oil	mg/l	5	1.1	ND	‹ 0.5
Copper	mg/l	3	0.02	ND	‹ 0.01
Fluorine (freshwater)	mg/l	8	0.3	ND	‹ 0.1
Fluorine (seawater)	mg/l	15	4.8	0.2	2.0
Zinc	mg/l	2	1.1	ND	‹ 0.22
Soluble iron	mg/l	10	1.6	ND	‹ 0.2
Soluble manganese	mg/l	10	3.9	ND	‹ 0.4
Total nitrogen	mg/l	60	11	2.4	6.1
Total phosphorus	mg/l	8	0.82	ND	‹ 0.14
Coliform groups	colonies/cm3	3,000	450	ND	‹ 65
Chromium	mg/l	2	0.08	ND	‹ 0.02
Boric acid (freshwater)	mg/l	10	0.29	0.16	0.23
Boric acid (seawater)	mg/l	230	1.8	0.14	0.96
Ammonia, ammonium, nitrous acid and nitrous acid compounds	mg/l	100	4.1	0.8	2.4

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)

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	20,094	0	317	0	317	16,149	0	3,628	0
29	4,4'- isopropylidenediphenol	3,759	0	0	0	0	0	3,759	0	0
30	Polymer of 4,4'- isopropylidenediphenol and 1-chloro-2,3- epoxypropane (in liquid state only)	3,725	0	0	0	0	3,725	0	0	0
40	Ethyl benzene	227,091	124,760	0	0	124,760	53,521	46,749	0	2,061
43	Ethylene glycol	1,971,726	12	0	0	12	1,971,714	0	0	0
63	Xylene	935,964	360,092	0	0	360,092	257,107	186,901	0	131,864
68	Chromium and trivalent chromium compounds	100,349	0	0	0	0	98,440	0	1,904	5
69*	Hexavalent chromium compounds	4,653	0	0	0	0	2,749	1,904	0	0
198	1,3,5,7- tetraazetoricyclo [3.3.1.13.7] decane	137,308	0	0	0	0	0	137,308	0	0
224	1,3,5- trimethylbenzene	67,444	24,184	0	0	24,184	11,407	18,194	0	13,659
227	Toluene	1,385,043	420,084	0	0	420,084	523,899	423,646	0	17,414
231	Nickel	4,218	0	0	0	0	4,216	0	0	2
232*	Nickel compounds	3,532	0	427	0	427	1,214	0	1,891	0
253	Hydrazine	1,076	0	0	0	0	0	1,076	0	0
266	Phenol	787,155	19	23	0	42	0	787,113	0	0
272	Bis (2-ethylhexyl) phthalate	9,417	0	0	0	0	9,134	283	0	0
283	Hydrogen fluoride and its water- soluble salts	4,726	0	756	0	756	0	0	3,970	0
299*	Benzene	36,351	44	0	0	44	24,620	11,687	0	0
310	Formaldehyde	294,939	2,764	0	0	2,764	0	292,175	0	0
311	Manganese and its compounds	377,227	0	318	0	318	375,153	0	1,744	12
346	Molybdenum and its compounds	5,250	0	0	0	0	2,893	0	26	2,331
Total		6,381,047	931,959	1,841	0	933,800	3,355,941	1,910,795	13,163	167,348

Miyoshi Office (including plant)

• Atmospheric pollutants

Atmospheric pollutants		Units	Regulation	Actual (max.)
NOx	Boilers	ppm	250	160
	Diesel engines	ppm	950	760
Ash	Boilers	g/m3N	0.30	0.097
	Diesel engines	g/m3N	0.10	0.091
SOx	K-value regulation	-	17.5	0.66

• Water pollutants

Wastewater drainage to Basen River

Water pollutants	Units	Regulation	Actual
			Max.	Min.	Avg.
pH	-	5.8 - 8.6	7.6	6.9	7.4
BOD	mg/l	70	3.7	0.6	2.3
SS	mg/l	70	2.5	ND	‹ 1.4
Oil	mg/l	5	ND	ND	ND
Fluorin	mg/l	2	0.03	0.03	0.03
Soluble manganese	mg/l	10	2	ND	‹ 0.3
Total nitrogen	mg/l	60	0.6	0.6	0.6
Total phosphorus	mg/l	8	0.02	0.02	0.02
Coliform groups	colonies/cm3	3,000	28	ND	‹ 12
Boric acid	mg/l	10	0.02	0.02	0.02
Ammonia, ammonium, nitrous acid and nitrous acid compounds	mg/l	100	0.4	0.4	0.4

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, selenium, fluorin, phenol, copper, soluble iron 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)

Substance No.	Substance group	Amount handled	Volume emitted				Amount consumed	Amount disposed	Amount transferred	Recycled
			Air	Water	Soil	Total			Waste product
40	Ethyl benzene	8,013	0.94	0	0	0.94	0	8,012	0	0
63	Xylene	36,783	3.6	0	0	3.6	0	36,779	0	0
224	1,3,5-trimethylbenzene	2,788	0.10	0	0	0.10	0	2,788	0	0
227	Toluene	90,913	33	0	0	33	0	90,880	0	0
299*	Benzene	3,279	4.0	0	0	4.0	0	3,275	0	0
Total		141,776	42	0	0	42	0	141,734	0	0