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Conformance to the PRTR Act

FY 2018/3

The balance sheet of substances used by the NEC Group among the chemical substances that are subject to the PRTR act (Class I Designated Chemical Substances: 462 substances) is summarized in the following illustration.
Compared with the report of the previous fiscal year, total volume handled is increased due to increase in production volume. Compared with the report of the previous fiscal year, transaction volume has decreased due to a review of manufacturing processes to more effectively utilize resources and a reduction in production volume.
For chemical substances released into the atmosphere and public water bodies (including discharges into sewage systems), NEC has set its own voluntary standards, which are more stringent than the levels required by the act, and ensured that these standards were strictly met.

Overview of Chemical Mass Balance Management

Figure: Overview of Chemical Mass Balance Management

Scope of data collection:NEC and its 44 group companies (including those in Japan and overseas)(FY2018/3)

Details of Pollutant Release & Transfer Registers (PRTR)

Unit: ton/year

Substances Total volume handled Volume consumed Removal treatment Recycled Released into atmosphere Released into public water bodies Total volume transferred (sewage) Total volume transferred (waste)
Cobalt and its compounds 715.6 596.0 0.0 111.9 0.0 0.0 0.0 7.6
Dichloropentafluoropropane (also known as HCFC-225) 1.7 1.2 0.0 0.0 1.3 0.0 0.0 0.0
1,2,4-trimethylbenzene 27.9 12.4 0.0 0.0 0.1 0.0 0.0 0.0
Toluene 2.8 1.0 0.0 0.0 0.3 0.0 0.0 0.1
Lead 22.0 0.9 0.9 0.0 0.0 0.0 0.0 0.0
Nickel compounds 1973.4 1643.8 0.0 308.6 0.0 0.0 0.0 21.0
Di-n-butyl phthalate 2.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Bis-(2-ethylhexyl) phthalate 34.5 27.9 0.0 6.1 0.0 0.0 0.0 0.5
1-bromopropane 3.8 3.0 0.0 0.0 1.4 0.0 0.0 1.0
Manganese and its compounds 1007.4 839.1 0.0 157.5 0.0 0.0 0.0 10.7
Methylnaphthalene 4.6 2.8 0.0 0.0 0.0 0.0 0.0 0.0
Ethylbenzene 32.4 0.0 6.0 1.6 24.8 0.0 0.0 0.0
Xylene 211.2 11.2 34.2 8.9 143.5 0.0 0.0 0.1
Silver and its water-soluble compounds 11.3 0.4 0.0 0.0 0.0 0.0 0.0 0.1
  • *
    Substances with total amounts handled over 1 ton are listed.
  • *
    In accordance with the PRTR act, non-sellable recycled substances are included in waste in this calculation. Of all the substances calculated as waste, we recycle 99.9% or more.