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Environmental Data: Effects on the environment

Mass Balance of Business Operations

Mass balance clearly indicates the direct impact of business activities of the environment. NEC uses mass balance to implement measures to reduce environmental impact.

Mass Balance of Business Operations (NEC)

INPUT
  FY 2011 FY 2012 FY 2013
Electricity 1.00 billion kWh 800 million kWh 710 million kWh
Gas  30.99 million m³  24.01 million m³  21.78 million m³
Fuel (such as oil) 7,000 kl 7,000 kl 6,000 kl
Water  4.20 million m³  3.24 million m³  2.95 million m³
Chemical Substances regulated by law 10,000 t 12,000 t 9,000 t
Paper (recycle paper usage rate) 2,150 t (94%) 1,807 t (96%) 1,802 t (98%)
Paper and plastic packaging materials 666 t 863 t 1390 t
OUTPUT
    FY 2011 FY 2012 FY 2013
CO₂ 511,000 t 392,000 t 405,000 t
NOx   115 t 52.4 t 30.3 t
SOx   5 t 5.5 t 2.6 t
Wastewater    3.48 million m³  2.71 million m³  1.91 million m³
BOD in Municipal Water System   14 t 1.4 t 1.5 t
Municipal Waste Material   5,000 t 5,000 t 4,000 t
    Recycling Rate  100% 100% 90.4%
   Material Recycling Rate 67% 68% 68.2%
Thermal Recycling Rate 33% 32% 22.2%
Industrial Waste Material   19,000 t 28,000 t 73,000 t
       Recycling Rate  79.6% 75.4% 86.2%
    Material Recycling Rate 60.1% 67.1% 79.0%
Thermal Recycling Rate 19.3% 8.2% 7.1%
Intermediate (incineration) treatment rate  15.8% 24.5% 7.8%
Landfill Disposal  30.6 t 10.7 t 4.4 t

(Note) Tabulations on waste materials were made based on domestic performance.

Changes in Usage of Regulated Chemical Substances

Changes in Usage of Regulated Chemical SubstancesRelated laws: Poisonous and Deleterious Substances Control Law, Industrial Safety and Health Law (Ordinance on Prevention of Hazards Due to Specified Chemical Substances, etc.),fire laws (hazardous substances), PRTR Laws and Air Pollution control Law (hazardous air pollutants) *Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries

NOx and SOx emissions

We lowered the total sulfur oxide (SOx) emissions to 5.5 tons in FY 2012, a reduction of 91% compared to FY 2003. We also lowered our nitrogen oxide (NOx) emissions to 52 tons, which is a reduction of 86% compared to FY 2003.

chart: NOx and SOx emissions*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries

Analysis and Monitoring of Pollutions (Measurements Taken by NEC and Domestic Manufacturing Subsidiaries)

NEC conducts environment measurements required by laws and regulations and by local government ordinances based on an annual plan. Efforts are made to monitor environmental conservation activities continually to avoid inconveniencing local and neighboring communities. Drainage, exhaust emissions, noise and vibration emitted by plants are periodically monitored and checked. Voluntary control standards that are stricter than legally required standards are set, and compliance is made with legal requirements by using a trend control technique that detects anomalous values early based on trends in past data.

  FY 2011 FY 2012 FY 2013
Water quality, Air quality, Noise levels, Vibration levels 5,886 6,122 7,293

Changes in Water Consumption

NEC has undertaken activities to reduce water consumption and to protect forests in catchment areas

Changes in Water Consumption*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries

Copy and Printing Paper Consumption

chart: Copy and Printing Paper Consumption* Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries

Through 2012: Totals for production activities include NEC and production-related companies. Totals for non-production activities include service, software and sales-related companies.
From 2013:  Production activities are the total of “production sites”, and non-production activities are the total of “non-production sites”.