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Mass balance clearly indicates the direct impact of business activities of the environment. NEC uses mass balance to implement measures to reduce environmental impact.
| FY 2009 | FY 2010 | FY 2011 | |
|---|---|---|---|
| Electricity | 2.23 billion kWh | 2.05 billion kWh | 1.00 billion kWh |
| Gas | 59.78 million m3 | 42.90 million m3 | 30.99 million m3 |
| Fuel (such as oil) | 25,000 kl | 21,000 kl | 7,000 kl |
| Water | 14.10 million m3 | 13.40 million m3 | 4.20 million m3 |
| Chemical Substances regulated by law | 38,000 t | 34,000 t | 10,000 t |
| Paper (recycle paper usage rate) | 2,141 t (95%) | 2,000 t (96%) | 2,150 t (94%) |
| Paper and plastic packaging materials | 1,540 t | 1,466 t | 666 t |
| FY 2009 | FY 2010 | FY 2011 | |||
|---|---|---|---|---|---|
| CO2 | 1,240,000 t | 929,000 t | 511,000 t | ||
| NOx | 157 t | 188 t | 115 t | ||
| SOx | 30 t | 24 t | 5 t | ||
| Wastewater | 10.64 million m3 | 10.30 million m3 | 3.48 million m3 | ||
| BOD in Municipal Water System | 14 t | 12 t | 14 t | ||
| Municipal Waste Material | 8,000 t | 5,000 t | 5,000 t | ||
| Recycling Rate | 100% | 100% | 100% | ||
| Material Recycling Rate | 79% | 72.4% | 67% | ||
| Thermal Recycling Rate | 21% | 27.6% | 33% | ||
| Industrial Waste Material | 35,000 t | 38,000 t | 19,000 t | ||
| Recycling Rate | 99.6% | 90.8% | 79.6% | ||
| Reuse Rate | 1% | 0.04% | 0.3% | ||
| Material Recycling Rate | 71% | 64.6% | 60.1% | ||
| Thermal Recycling Rate | 28% | 26.1% | 19.3% | ||
| Intermediate (incineration) treatment rate | 0% | 8.9% | 15.8% | ||
| Landfill Disposal | 168 t | 124 t | 30.6 t | ||
Impacted by NEC's withdrawal from the semiconductor business, emissions of greenhouse gas (*) other than CO2 totaled 17,000 tons (equivalent to carbon dioxide) in FY 2011, reduced by 91% compared with the previous fiscal year. NEC is also establishing and managing targets classified into CO2 emissions and greenhouse gas emissions other than CO2 due to energy use according to a Kyoto Protocol Target Achievement Plan formulated by the Government in April 2005.
(*) Target substances: PFC, HFC, SF6, NF3, N2O
*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries
Related 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
We lowered the total sulfur oxide (SOx) emissions of all sites to 5 tons in FY 2011, a reduction of 92% compared to FY 2003. We also lowered our nitrogen oxide (NOx) emissions to 115 tons, which is a reduction of 69% compared to FY 2003.
*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and 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 2009 | FY 2010 | FY 2011 | |
|---|---|---|---|
| Water quality | 9,663 | 6,952 | 4,734 |
| Air quality | 2,485 | 1,452 | 688 |
| Noise levels | 945 | 445 | 353 |
| Vibration levels | 160 | 131 | 111 |
NEC has undertaken activities to reduce water consumption and to protect forests in catchment areas
*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries
*Scope: NEC Japan (headquarters area, 4 plants, and laboratories) and consolidated affiliates and subsidiaries
