Releases of chemicals used in factories are closely controlled in accordance with the law

Chemicals are carefully monitored and managed to minimize releases

Every effort is made to manage chemicals appropriately using Safety Data Sheets (SDS). Chemicals subject to PRTR Law (Japanese Law concerning Pollutant Release and Transfer Register) are monitored and reported on in accordance with relevant legislation.

Active steps are being taken to minimize releases of chemicals into the environment, including enhancing the capacity of wastewater treatment systems and installing deodorizing equipment.


■Release of PRTR Substances in Fiscal 2018

(in Metric Ton)
Substances Amount Released
Air Water Soil
zinc compounds (water-soluble) 0.0 0.6 0.0
acrylic acid and its water-soluble salts 0.0 0.0 0.0
acrolein 0.0 0.0 0.0
sodium azide 0.0 0.0 0.0
acetaldehyde <0.1 0.0 0.0
acetonitrile 4.0 <0.1 0.0
acenaphthene 0.0 0.0 0.0
o-anisidine 0.0 0.0 0.0
2-aminoethanol 0.0 0.0 0.0
antimony and its compounds 0.0 0.0 0.0
ethylbenzene 0.0 0.0 0.0
ethylene glycol monoethyl ether 0.0 0.0 0.0
ethylene glycol monomethyl ether 0.0 0.0 0.0
ethylenediamine 0.0 0.0 0.0
ethylenediaminetetraacetic acid 0.0 0.0 0.0
ferric chloride 0.0 0.0 0.0
1-octanol 0.0 0.0 0.0
ε-caprolactam 0.0 0.0 0.0
xylene 0.3 0.1 0.0
quinoline <0.1 <0.1 0.0
silver and its water-soluble compounds 0.0 0.0 0.0
cresol 0.0 0.0 0.0
chromium(VI) compounds 0.0 0.0 0.0
chloroethylene 2.9 0.0 0.0
ethyl chloroacetate 0.0 0.0 0.0
o-chlorotoluene 0.0 0.0 0.0
p-chlorotoluene <0.1 <0.1 0.0
2-chloronitrobenzene 0.0 0.0 0.0
o-chlorophenol 0.0 0.0 0.0
3-chloropropene 0.0 0.0 0.0
chlorobenzene <0.1 <0.1 0.0
chloroform 0.0 0.0 0.0
chloromethane 0.1 <0.1 0.0
cobalt and its compounds 0.0 0.0 0.0
salicylaldehyde 0.0 0.0 0.0
inorganic cyanide compounds
(except complex salts and cyanates)
0.0 0.0 0.0
tetrachloromethane 0.0 0.0 0.0
1,4-dioxane 0.0 0.0 0.0
1,3-dioxolane <0.1 0.0 0.0
1,2-dichloroethane 0.0 0.0 0.0
dichlorobenzene 0.0 0.0 0.0
dichloromethane 0.4 <0.1 0.0
dicyclopentadiene 0.0 0.0 0.0
N,N-dimethylacetamide 0.0 0.0 0.0
2,4-dimethylaniline 0.0 0.0 0.0
N,N-dimethylaniline <0.1 <0.1 0.0
dimethylamine 0.0 0.0 0.0
N,N-dimethylformamide <0.1 1.2 0.0
bromine 0.0 <0.1 0.0
organic tin compounds 0.0 0.0 0.0
selenium and its compounds 0.0 0.0 0.0
dioxins <0.1 0.0 0.0
thiourea 0.0 0.0 0.0
decanoic acid 0.0 0.0 0.0
decyl alcohol 0.0 0.0 0.0
2,3,5,6-tetrachloro-p-benzoquinone 0.0 0.0 0.0
terephthalic acid 0.0 0.0 0.0
dimethyl terephthalate 0.0 0.0 0.0
1-dodecanol 0.0 0.0 0.0
sodium dodecyl sulfate 0.0 0.0 0.0
3,6,9-triazaundecane-1,11-diamine 0.0 0.0 0.0
triethylamine 0.3 <0.1 0.0
trichloroacetic acid 0.0 0.0 0.0
2,4,6-trichlorophenol 0.0 0.0 0.0
1,3,5-trimethylbenzene 0.0 0.0 0.0
toluidine 0.0 0.0 0.0
toluene 17.2 1.4 0.0
naphthalene 0.0 0.0 0.0
lead 0.0 0.0 0.0
nickel 0.0 <0.1 <0.1
nickel compounds <0.1 0.0 0.0
nitrobenzene 0.0 0.0 0.0
nitromethane 0.0 0.0 0.0
carbon disulfide 0.0 0.0 0.0
methyl 4-hydroxybenzoate 0.0 0.0 0.0
hydroquinone 0.0 0.0 0.0
biphenyl 0.0 0.0 0.0
pyridine <0.1 <0.1 0.0
phenyloxirane 0.0 0.0 0.0
phenol 0.0 0.0 0.0
butylhydroxyanisole 0.0 0.0 0.0
hydrogen fluoride and its water-soluble salts 0.0 0.0 0.0
2-butenal 0.0 0.0 0.0
furan <0.1 0.0 0.0
1-bromopropane 0.0 0.0 0.0
n-hexane <0.1 <0.1 0.0
benzyl chloride 0.0 0.0 0.0
benzaldehyde <0.1 0.0 0.0
benzene 0.0 0.0 0.0
benzophenone 0.0 <0.1 0.0
boron compounds 0.0 <0.1 0.0
poly(oxyethylene)alkyl ether(alkyl C=12-15) 0.0 0.0 0.0
poly(oxyethylene)nonylphenyl ether 0.0 0.0 0.0
formaldehyde <0.1 <0.1 0.0
manganese and its compounds 0.0 <0.1 0.6
phthalic anhydride 0.0 0.0 0.0
maleic anhydride 0.0 0.0 0.0
methacrylic acid <0.1 <0.1 <0.1
methyl methacrylate 0.0 0.0 0.0
methylamine 0.0 0.0 0.0
molybdenum and its compounds 0.0 0.0 0.0
morpholine 0.0 0.0 0.0
tritolyl phosphate 0.0 0.0 0.0
Total 25.1 3.3 0.6