Hiroshima Plant

• Atmospheric pollutants

Atmospheric pollutants		Unit	Regulation	Actual(max.)
NOx	Boilers	ppm	180	84
			150	65
	Drying ovens	ppm	250	73
			230	24
	Melting furnaces	ppm	180	96
	Diesel engines	ppm	950	610
	Heating furnaces	ppm	200	24
			180	57
			150	89
			130	45
	Roasting furnaces	ppm	220	35
Ash	Boilers	g/m³N	0.30	0.012
			0.10	0.0012
	Drying ovens	g/m³N	0.4	0.0054
			0.35	< 0.002
			0.2	0.0083
			0.15	0.0054
	Melting furnaces	g/m³N	0.4	0.02
			0.20	0.054
			0.10	0.001
	Diesel engines	g/m³N	0.10	0.017
	Heating furnaces	g/m³N	0.4	0.0064
			0.25	0.014
			0.20	0.055
	Roasting furnaces	g/m³N	0.10	0.003
SOx	K-value regulation	-	7	1.14
VOC	Painting facilities	ppm	700	296
	Washing facilities	ppm	400	124

• Water pollutants (Wastewater Drainage Destination: Enko River and Kaita Bay)

Water pollutants	Unit	Regulation	Actual
			Max.	Min.	Avg.
pH (freshwater)	-	5.8 to 8.6	7.4	6.6	7.0
pH (seawater)	-	5.5 to 9.0	7.6	6.3	7.1
BOD	mg/L	120	3.4	ND	< 1.6
COD	mg/L	15	11	1.3	4.2
SS	mg/L	150	7.5	ND	< 3
Oil	mg/L	5	ND	ND	ND
Copper	mg/L	3	0.04	ND	< 0.01
Fluorine (freshwater)	mg/L	8	0.2	ND	< 0.1
Fluorine (seawater)	mg/L	15	7.3	0.1	2.6
Zinc	mg/L	2	0.67	ND	< 0.09
Soluble manganese	mg/L	10	0.7	ND	< 0.2
Total nitrogen	mg/L	60	9.6	1.8	4
Total phosphorus	mg/L	8	0.4	ND	< 0.08
Coliform groups	colonies/cm³	3,000	66	Less than 10	< 14
Phenol	mg/L	5	0.13	ND	< 0.02
Chromium	mg/L	2	0.03	ND	< 0.01
Boron (freshwater)	mg/L	10	0.2	0.17	0.19
Boron (seawater)	mg/L	230	1.5	0.11	0.9
Ammonia, ammonium, nitrous acid, and nitrous acid compounds	mg/L	100	4.1	1.3	2.6

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

• Volume of PRTR-designated Pollutants Emitted and Transferred in FY March 2012

 

Unit:(kg/year)
(Items marked with an asterisk (*) are Class 1 designated chemical substances of which 500 kg/year or more are handled.)
(Other items are Class 1 designated chemical substances of which 1,000 kg/year or more are handled.)

Substance No.	Substance group	Amount handled				Volume emitted	Amount consumed	Amount disposed	Amount transferred	Amount recycled
			Air	Water	Soil				Waste products
1	Water-soluble zinc compounds	21,977	0	352	0	352	19,208	0	2,417	0
37	4,4'-isopropylidenediphenol	4,395	0	0	0	0	0	4,395	0	0
53	Ethyl benzene	138,938	66,910	0	0	66,910	47,142	21,157	0	3,729
80	Xylene	606,892	252,642	0	0	252,642	196,973	87,815	0	69,462
87	Chromium and trivalent chromium compounds	77,596	0	0	0	0	76,182	0	1,414	0
88*	Hexavalent chromium compounds	3,449	0	0	0	0	2,035	1,414	0	0
258	1,3,5,7-tetraazetoricyclo [3.3.1.13.7] decane	105,032	0	0	0	0	0	105,032	0	0
277	Triethylamine	266,843	1,601	0	0	1,601	0	265,242	0	0
296	1,2,4-trimethylbenzene	204,168	34,091	0	0	34,091	123,344	46,733	0	0
297	1,3,5-trimethylbenzene	54,128	29,397	0	0	29,397	4,384	10,624	0	9,723
300	Toluene	894,156	267,264	0	0	267,264	431,275	177,387	0	18,230
309*	Nickel compounds	3,939	0	473	0	473	1,359	0	2,107	0
349	Phenol	597,206	15	18	0	33	0	597,173	0	0
355	Bis (2-ethylhexyl) phthalate	15,023	0	0	0	0	14,572	451	0	0
374	Hydrogen fluoride and its water-soluble salts	4,004	0	641	0	641	0	0	3,363	0
392	n-Hexane	147,355	369	0	0	369	128,332	18,654	0	0
400*	Benzene	28,731	36	0	0	36	23,818	4,877	0	0
411*	Formaldehyde	170,525	1,622	0	0	1,622	0	168,903	0	0
412	Manganese and its compounds	212,567	0	308	0	308	210,389	0	1,758	112
438	Methylnaphthalene	4,329	22	0	0	22	0	4,307	0	0
448	Diisocyanate (methylene-bis [4,1-phenylene])	255,723	0	0	0	0	0	255,723	0	0
453	Molybdenum and its compounds	2,381	0	0	0	0	1,104	0	114	1,163
Total		3,819,357	653,969	1,792	0	655,761	1,280,117	1,769,887	11,173	102,419

Miyoshi Office (including plant)

• Atmospheric pollutants

Atmospheric pollutants		Unit	Regulation	Actual (max.)
NOx	Boilers	ppm	250	170
	Diesel engines	ppm	950	610
Ash	Boilers	g/m³N	0.30	0.093
	Diesel engines	g/m³N	0.10	0.075

• Water pollutants (Wastewater Drainage Destination: Basen River)

Water pollutants	Unit	Regulation	Actual
			Max.	Min.	Avg.
pH	–	5.8 to 8.6	7.6	7.1	7.4
BOD	mg/L	70	4.8	0.9	2.1
SS	mg/L	70	6	0.6	2.4
Oil	mg/L	5	ND	ND	ND
Fluorine	mg/L	8	0.2	0.2	0.2
Zinc	mg/L	2	ND	ND	ND
Soluble manganese	mg/L	10	0.4	ND	< 0.2
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	53	Less than 10	< 16
Boron	mg/L	10	0.03	0.03	0.03
Ammonia, ammonium, nitrous acid, and nitrous acid compounds	mg/L	100	ND	ND	ND

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

• Volume of PRTR-designated Pollutants Emitted and Transferred in FY March 2012

Unit:(kg/year)
(Items marked with an asterisk (*) are Class 1 designated chemical substances of which 500 kg/year or more are handled.)
(Other items are Class 1 designated chemical substances of which 1,000 kg/year or more are handled.)

Substance No.	Substance group	Amount handled				Volume emitted	Amount consumed	Amount disposed	Amount transferred	Amount recycled
			Air	Water	Soil				Waste products
53	Ethyl benzene	4,315	0.49	0	0	0.49	0	4,315	0	0
80	Xylene	18,288	2.1	0	0	2.1	0	18,286	0	0
296	1,2,4-trimethylbenzene	11,949	0.69	0	0	0.69	0	11,948	0	0
297	1,3,5-trimethylbenzene	2,126	0.07	0	0	0.07	0	2,126	0	0
300	Toluene	56,202	20	0	0	20	0	56,182	0	0
392	n-Hexane	6,745	17	0	0	17	0	6,728	0	0
400*	Benzene	1,827	2.3	0	0	2.3	0	1,825	0	0
438	Methylnaphthalene	6,065	30	0	0	30	0	6,035	0	0
Total		107,517	73	0	0	73	0	107,445	0	0