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NOF has set a medium-term goal of reducing emissions of chemical substances subject to the Pollutant Release and Transfer Register (PRTR) Law by 50% by the end of fiscal 2007. Efforts are now being directed to achieving this goal. |
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The diagram on the shows the status of PRTR Law-regulated substances and amounts at NOF. |
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NOF handled 79 such substances in fiscal 2004; for 59 of those substances, it handled at least 1 ton/year. The total volume of PRTR substances handled was 43,869 tons, 19% more than the previous year. More than 90% of this rise was due to an increase in internal production volumes.
Emissions totaled 321 tons, 7.5% less than the previous year, despite the large increase in volume handled. The majority of emissions were atmospheric. There were no emissions into the soil.
The recycling volume was 11 tons, 5.8% up year on year. |
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| Site |
Chemical Substance |
Emissions (tons) |
YoY Change* |
Reduction Initiative |
| Amagasaki Plant |
Toluene |
193 |
No |
No |
| Chidori Plant |
Toluene |
44 |
Down |
Yes |
| Chidori Plant |
3-chloropropene |
33 |
Down |
Yes |
| Amagasaki Plant |
Dichloromethane |
17 |
Up |
No |
| Chidori Plant |
Dichloromethane |
7 |
No |
No |
| Chidori Plant |
1,2-epoxypropane |
4 |
No |
No |
| Aichi Works |
Toluene |
4 |
Down |
Yes |
| Amagasaki Plant |
Chloroform |
3 |
Up |
No |
| Chidori Plant |
Ethylene oxide |
3 |
Down |
Yes |
| Aichi Works |
Chlorodifluoromethane |
2 |
Up |
No |
| Amagasaki Plant |
Styrene monomer |
1 |
No |
No |
| Aichi Works |
Trichloroethylene |
1 |
Up |
No |
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*"Up" is defined as a year-on-year increase of at least 10%; “Down” is defined as a year-on-year decrease of at least 10%; and “No” is defined as a change of less than 10%. |
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The main reduction initiatives were as follows:
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(1) Atmospheric particulates produced during the treatment of wastewater were halved with the introduction of a heat storage combustion type deodorization device at the Aichi Works. |
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(2) The installation of 3-chloropropene recovery equipment at the Chidori Plant reduced emissions by 35% year on year.
At NOF, the 4 chemical substances with the largest emissions account for around 90% of total emissions. NOF has set a medium-term target of a 50% reduction in emissions volume by the end of fiscal 2007 and, at the same time, has launched a project toward this goal. |
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Voluntarily Managed Substances
In addition to substances regulated by the PRTR Law, NOF works to screen and reduce emissions of substances that it voluntarily monitors in line with recommendations by the Japan Chemical Industry Association. NOF monitored 38 such substances in fiscal 2004; there were 32 substances for which it handled at least 1 ton/year. The total volume of voluntarily monitored substances handled was 12,330 tons. Total emissions were 423 tons. |
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The following table shows fiscal 2004 emission and transfer volumes for chemical substances regulated by the PRTR Law. |
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(Unit: kg, decimal places are omitted) |
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| No. |
Substance name |
Emissions |
Transfer |
Internally recycled |
| Air |
Water |
Soil |
Total |
| 1 |
Zinc compounds (water-soluble) |
0 |
183 |
0 |
183 |
0 |
0 |
| 3 |
Acrylic acid |
1 |
4 |
0 |
5 |
1 |
0 |
| 7 |
Acrylonitrile |
101 |
29 |
0 |
130 |
0 |
0 |
| 12 |
Acetonitrile |
16 |
2 |
0 |
18 |
60,424 |
0 |
| 16 |
2-aminoethanol |
13 |
0 |
0 |
13 |
0 |
0 |
| 17 |
N-(2-aminoethyl)-1,2-ethanediamine |
0 |
0 |
0 |
0 |
2,812 |
0 |
| 22 |
Allyl alcohol |
61 |
0 |
0 |
61 |
0 |
0 |
| 23 |
1-allyloxy-2,3-epoxypropane |
25 |
0 |
0 |
25 |
0 |
0 |
| 27 |
3-isocyanatomethyl-3,5,5-trimethylcyclohexyl=isocyanate |
0 |
0 |
0 |
0 |
0 |
0 |
| 29 |
4,4’-isopropylidenediphenol |
0 |
0 |
0 |
0 |
0 |
0 |
| 40 |
Ethylbenzene |
188 |
0 |
0 |
188 |
253 |
0 |
| 42 |
Ethylene oxide |
2,947 |
0 |
0 |
2,947 |
0 |
0 |
| 43 |
Ethylene glycol |
0 |
5 |
0 |
5 |
119 |
0 |
| 45 |
Ethylene glycol monomethyl ether |
31 |
1 |
0 |
32 |
18 |
0 |
| 46 |
Ethylenediamine |
282 |
0 |
0 |
282 |
0 |
0 |
| 54 |
Epichlorohydrin |
581 |
0 |
0 |
581 |
0 |
0 |
| 56 |
1,2-epoxypropane |
4,353 |
0 |
0 |
4,353 |
0 |
0 |
| 57 |
2,3-epoxypropyl phenyl ether |
104 |
0 |
0 |
104 |
0 |
0 |
| 59 |
p-octylphenol |
0 |
0 |
0 |
0 |
0 |
0 |
| 63 |
Xylene |
537 |
8 |
0 |
545 |
73 |
0 |
| 80 |
Chloroacetic acid |
0 |
0 |
0 |
0 |
0 |
0 |
| 85 |
Chlorodifluoromethane |
2,196 |
0 |
0 |
2,196 |
0 |
0 |
| 91 |
3-chloropropene |
32,822 |
0 |
0 |
32,822 |
0 |
0 |
| 95 |
Chloroform |
2,997 |
7 |
0 |
3,004 |
17,985 |
0 |
| 96 |
Chloromethane |
24,058 |
0 |
0 |
24,058 |
0 |
0 |
| 114 |
Cyclohexylamine |
0 |
0 |
0 |
0 |
0 |
0 |
| 144 |
Dichloropentafluoropropane |
108 |
0 |
0 |
108 |
0 |
0 |
| 145 |
Dichloromethane |
1,668 |
1 |
0 |
1,669 |
18,849 |
0 |
| 166 |
N,N-dimethyldodecylamine N-oxide |
0 |
0 |
0 |
0 |
2,952 |
0 |
| 176 |
Octyl acid tin/trichlorotrifluoroethane |
0 |
0 |
0 |
0 |
0 |
0 |
| 177 |
Styrene |
1,562 |
0 |
0 |
1,562 |
549 |
0 |
| 181 |
Thiourea |
0 |
0 |
0 |
0 |
9 |
0 |
| 200 |
Tetrachloroethylene |
30 |
0 |
0 |
30 |
0 |
0 |
| 211 |
Trichloroethylene |
1,081 |
0 |
0 |
1,081 |
0 |
0 |
| 213 |
trichlorotrifluoroethane |
1 |
0 |
0 |
1 |
25 |
0 |
| 227 |
Toluene |
240,980 |
2 |
0 |
240,982 |
172,846 |
4,673 |
| 231 |
Nickel |
0 |
0 |
0 |
0 |
27,033 |
0 |
| 236 |
Nitroglycerin |
485 |
0 |
0 |
485 |
0 |
0 |
| 242 |
Nonylphenol |
0 |
0 |
0 |
0 |
0 |
0 |
| 251 |
Bis (hydrogenated tallow) dimethylammonium chloride |
0 |
0 |
0 |
0 |
0 |
0 |
| 254 |
Hydroquinone |
0 |
0 |
0 |
0 |
0 |
0 |
| 266 |
Phenol |
0 |
0 |
0 |
0 |
0 |
0 |
| 270 |
Di-n-butyl phthalate |
1 |
0 |
0 |
1 |
1 |
0 |
| 272 |
Bis (2-ethylhexyl) phthalate |
21 |
2 |
0 |
23 |
133 |
0 |
| 297 |
Benzyl chloride |
0 |
0 |
0 |
0 |
0 |
0 |
| 299 |
Benzene |
3 |
0 |
0 |
3 |
1,398 |
41 |
| 304 |
Boron and its compounds (conversion) |
0 |
20 |
0 |
20 |
364 |
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| 307 |
Poly (oxyethylene) alkyl ether (alkyl C=12-15) |
0 |
0 |
0 |
0 |
1,940 |
0 |
| 308 |
Poly (oxyethylene) 4-octylphenyl ether |
0 |
0 |
0 |
0 |
2,240 |
0 |
| 309 |
Poly (oxyethylene) nonylphenyl ether |
0 |
0 |
0 |
0 |
0 |
0 |
| 310 |
Formaldehyde |
140 |
0 |
0 |
140 |
0 |
0 |
| 313 |
Maleic anhydride |
623 |
0 |
0 |
623 |
183,583 |
0 |
| 314 |
Methacrylic acid |
11 |
0 |
0 |
11 |
0 |
0 |
| 315 |
2-ethylhexyl methacrylate |
2 |
0 |
0 |
2 |
0 |
0 |
| 316 |
2,3-epoxypropyl methacrylate |
469 |
0 |
0 |
469 |
0 |
0 |
| 319 |
n-butyl methacrylate |
0 |
0 |
0 |
0 |
0 |
0 |
| 320 |
Methyl methacrylate |
1,561 |
1 |
0 |
1,562 |
96 |
0 |
| 335 |
f¿-methylstyrene |
374 |
28 |
0 |
402 |
6,200 |
6,200 |
| 2-62 |
tert-butyl=hydroperoxide |
450 |
0 |
0 |
450 |
0 |
0 |
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NOF total |
320,883 |
293 |
0 |
321,176 |
499,903 |
10,914 |
| 179 |
Dioxins |
5.551 |
0.595 |
0.000 |
6.146 |
1.300 |
0.000 |
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*Dioxins are shown in terms of mg-TEQ
*Emissions of 20 substances for which NOF handled less than 1 ton/year totaled 76kg/year. |
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