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CSR Report (Reference Data)

Air pollutant emissions (Japan)

(FY 2007)
Site name Substance Unit Particulate-emitting facilities Regulation requirements NSK control value Actul Value
NSK Ltd. Fujisawa Plant
(including Technology Div.)		 NOx (ppm) Boiler 150 135 31
Metal furnace 200 180 132
Soot and dust (g/m3N) Boiler 0.3 0.27 0.005
Metal furnace 0.2 0.18 0.075
SOx (m3N/hr) Boiler 3.2 2.9 0.03
Metal furnace 1.03 0.93 0.01
NSK Ltd.
Ohtsu Plant		 NOx (ppm) Boiler 150 120 67
Soot and dust (g/m3N) Boiler 0.1 0.05 0.005
SOx (K value) Boiler 8.76 5 0.02
NSK Ltd.
Ishibe Plant		 NOx (ppm) Boiler 150 120 36
Soot and dust (g/m3N) Boiler 0.1 0.05 ND
SOx (K value) Boiler 8.76 5 ND
NSK Ltd. Saitama Plant / NSK Precision Co, Ltd. Saitama Precision Machinery and Parts Plant NOx (ppm) Boiler 150 135 130
Metal furnace 180 150 130
Soot and dust (g/m3N) Boiler 0.1 0.08 ND
Metal furnace 0.25 0.15 0.016
SOx (m3N/hr) Boiler 1.18 0.6 ND
Metal furnace 1.53 0.75 0.002
NSK Steering Systems Co., Ltd., Soja Palnt NOx (ppm) Boiler 180 150 28
Soot and dust (g/m3N) Boiler 0.3 0.2 ND
SOx (K value) Boiler 8 7 0.061
NSK Steering Systems Co., Ltd., Akagi Palnt NOx (ppm) Boiler 180 150 80
Soot and dust (g/m3N) Boiler 0.3 0.2 0.007
SOx (K value) Boiler 8 7 0.073
NSK Precision Co, Ltd. Maebashi Precision Machinery and Parts Plant NOx (ppm) Boiler 180 150 77
Soot and dust (g/m3N) Boiler 0.3 0.05 0.004
SOx (K value) Boiler 8 1.5 0.095
NSK Fukushima Co., Ltd.; NSK Needle Bearing Co., Ltd., Fukushima Plant NOx (ppm) Boiler 180 135 130
Soot and dust (g/m3N) Boiler 0.3 0.05 ND
SOx (K value) Boiler 17.5 1.5 0.9
NSK Kyushu Co., Ltd. NOx (ppm) Boiler 180 160 130
Diesel engine 950 950 920
Soot and dust (g/m3N) Boiler 0.3 0.3 0.029
Diesel engine 0.1 0.1 0.029
SOx (K value) Boiler 17.5 13 1.4
Diesel engine 17.5 17.5 0.18
NSK Needle Bearing Co., Ltd. Takasaki Plant NOx (ppm) Boiler 150 140 49
Diesel engine 950 900 750
Soot and dust (g/m3N) Boiler 0.1 0.09 ND
Diesel engine 0.1 0.09 0.041
SOx (K value) Boiler 17.5 5 -
Diesel engine 17.5 5 0.1
NSK Needle Bearing Co., Ltd. Haruna Plant NOx (ppm) Boiler 150 140 130
Diesel engine 950 900 830
Soot and dust (g/m3N) Boiler 0.1 0.09 ND
Diesel engine 0.1 0.09 0.007
SOx (K value) Boiler 17.5 7 -
Diesel engine 17.5 7 0.65
NSK-Warner K.K. NOx (ppm) Boiler 180 135 76
Soot and dust (g/m3N) Boiler 0.3 0.05 ND
SOx (K value) Boiler 17.5 1.5 ND
Shinwa Seiko Co., Ltd., Shin-asahi Plant NOx (ppm) Boiler 180 135 58
Diesel engine 950 900 770
Soot and dust (g/m3N) Boiler 0.3 0.05 ND
Diesel engine 0.1 0.05 0.036
SOx (K value) Boiler 17.5 1.5 ND
Diesel engine 17.5 1.5 0.35
Amatsuji Steel Ball Mfg. Co., Ltd. Shiga Works NOx (ppm) Boiler 180 100 63
Soot and dust (g/m3N) Boiler 0.3 0.2 0.008

Actual values for Nox, soot and dust, and Sox are the maximum valuse recorded from among applicable facitilies.
ND: Under lower limit of determinate quantity (Not Detectable)

* No applicable particulate-emitting facilities: NSK Ltd. Kirihara Branch, NSK Micro Precision Co., Ltd., Fujisawa and Matsukawa plants, Inoue Jikuuke Kogyo Co., Ltd., Chitose Sangyo Co., ltd., Asahi Seiki Co., Ltd., Shinwa Seiko co., Ltd., Kutsuki Plant, NSK Machinery Co., Ltd., Amatsuji Steel Ball Mfg. Co., Ltd. Main Works, and AKS East Japan Co., Ltd.

Glossary

  • NOx: Occurs as nitrogen monoxide and nitrogen dioxide, when burning fuel in boilers.
  • Soot and dust: Particles generated during the combustion of fuel.
  • SOx: Sulfur oxides, particularly sulfur dioxide and sulfur trioxide, produced when fuels containing sulfur and burned in boilers and other equipment.
  • K value: A coefficient used to calculate the allowable amount of SOx emissions according to smokestack height for each facility, based on the Air Pollution Control Law. Specified K values have been established for each region. Rigions with higher concentrations of plant facilities have more stringent regulations and lower K values.

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Results of water contaminant measurements (Japan)

(FY 2007)
Site name Substance Regulation requirements NSK control value Actual value Discharge point
NSK Ltd.
Fujisawa Plant (including Technology Div.) 		pH 5.0~9.0 5.3~8.8 7.0~8.3 Sewer(no direct discharge to river or streams)
BOD (mg/l) 600 540 160
NSK Ltd.
Ohtsu Plant		 pH 6.0~8.5 6.3~8.0 6.7~7.8 Morikoshi River
BOD (mg/l) 70 25 22
COD (mg/l) 70 25 21
Suspended solids (mg/l) 90 30 21
Oil (mg/l) 5 4 4
Nitrogen (mg/l) 40 20 16
Phosphorus (mg/l) 2 1.8 1.8
NSK Ltd.
Ishibe Plant		 pH 6.0~8.5 6.3~8.3 6.8~8.2 Yasu River
BOD (mg/l) 70 50 10
COD (mg/l) 70 50 13
Suspended solids (mg/l) 90 70 6
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 40 30 4
Phosphorus (mg/l) 2 1.6 ND
NSK Ltd. Saitama Plant / NSK Precision Co, Ltd. Saitama Precision Machinery and Parts Plant pH 5.8~8.6 6.0~8.4 6.8~7.7 Naka River
BOD (mg/l) 25 20 6
COD (mg/l) 160 40 19
Suspended solids(mg/l) 60 40 8
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 60 50
Phosphorus (mg/l) 16 8 6
NSK Ltd.
Kirihara Branch		 pH 5.8~8.6 6.0~8.4 6.7~8.0 Hikichi River
BOD (mg/l) 60 55 32
COD (mg/l) 60 55 32
Suspended solids(mg/l) 90 85 41
Oil (mg/l) 5 4 ND
NSK Steering Systems Co., Ltd., Soja Palnt pH 5.8~8.6 5.9~8.5 7.8~8.5 Taki River
BOD (mg/l) 25 24 15
COD (mg/l) 25 24 20
Suspended solids(mg/l) 50 45 9
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 100 8
Phosphorus (mg/l) 16 14 0.5
NSK Steering Systems Co., Ltd., Akagi Palnt pH 5.8~8.6 5.9~8.5 7.1~7.4 Kamisawa River
BOD (mg/l) 40 24 7
COD (mg/l) 40 24 7
Suspended solids (mg/l) 50 26 7
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 120 9
Phosphorus (mg/l) 16 16 0.8
NSK Precision Co, Ltd. Maebashi Precision Machinery and Parts Plant pH 5.8~8.6 5.9~8.5 7.5~7.9 Someya River
BOD (mg/l) 25 24 1
COD (mg/l) 25 24 2
Suspended solids (mg/l) 50 45 ND
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 100 1.1
Phosphorus (mg/l) 16 14 0.1
NSK Fukushima Co., Ltd.; NSK Needle Bearing Co., Ltd., Fukushima Plant pH 5.8~8.6 6.0~8.4 6.9~7.4 Yashiro River
BOD (mg/l) 20 18 11
Suspended solids (mg/l) 50 25 17
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 60 30 13
Phosphorus (mg/l) 8 4 0.5
NSK Needle Bearing Co., Ltd. Takasaki Plant pH 5~9 5.9~8.5 6.7~7.6 Sewer (no discharge into rivers except rain runoff)
BOD (mg/l) 600 500 170
Cyanide (mg/l) 1 1 ND
NSK Needle Bearing Co., Ltd. Haruna Plant pH 5.8~8.6 5.9~8.5 7.3~8.3 Mukai River
BOD (mg/l) 25 24 13
Suspended solids (mg/l) 50 45 10
Oil (mg/l) 5 4 2
Nitrogen (mg/l) 120 100 58
NSK Micro Precision.,
Fujisawa Plant		 pH 5.8~8.6 5.9~8.5 7.0~7.9 Kashio River
BOD (mg/l) 60 35 18
COD (mg/l) 60 35 13
Suspended solids (mg/l) 90 88 28
Oil (mg/l) 5 4.5 2.0
NSK Micro Precision.,
Matsukawa Plant		 pH 5.8~8.6 5.8~8.6 6.7~7.5 Katagirimatsu River
BOD (mg/l) 160 160 3
COD (mg/l) 160 160 5
Suspended solids (mg/l) 200 200 4
Oil (mg/l) 5 5.0 1.0
NSK Kyushu Co., Ltd. pH 5.8~8.6 5.9~8.5 7.2~7.9 Chikugo River
BOD (mg/l) 45 20 7
COD (mg/l) 45 20 5
Suspended solids (mg/l) 100 60 2
Oil (mg/l) 4 4 1
Nitrogen (mg/l) 100 100 7
Phosphorus (mg/l) 14 14 1.3
NSK-Warner K.K. pH 5.8~8.6 6.0~8.4 7.1~7.7 Saka River
BOD (mg/l) 160 20 14
COD (mg/l) 160 20 21
Suspended solids (mg/l) 200 25 14
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 30 6
Phosphorus (mg/l) 16 4 0.07
Chitose Sangyo Co., Ltd. pH 5.8~8.6 6.0~8.4 7.6~7.7 Hatsuma River
BOD (mg/l) 160 20 11
COD (mg/l) 160 20 13
Suspended solids (mg/l) 200 100 92
Oil (mg/l) 5 4 4
Nitrogen (mg/l) 120 30 17
Phosphorus (mg/l) 16 4 1.7
Inoue Jikuuke Kogyo Co., Ltd. pH 5.8~8.6 6.0~8.3 6.3~7.6 Unada River
BOD (mg/l) 150 100 71
COD (mg/l) 150 100 31
Suspended solids (mg/l) 200 120 43
Oil (mg/l) 4 3 1
Nitrogen (mg/l) 60 60 57
Phosphorus (mg/l) 8 6 4.1
Asahi Seiki Co., Ltd. pH 5.8~8.6 6.5~7.5 7.5~7.6 Aida River
BOD (mg/l) 25 15 7
COD (mg/l) 160 15 9
Suspended solids (mg/l) 30 15 8
Oil (mg/l) 5 1 ND
Nitrogen (mg/l) 120 60 13
Phosphorus (mg/l) 16 8 1.2
Shinwa Seiko Co., Ltd.,
Shin-asahi Plant		 pH 6.0~8.5 6.5~8.0 7.1~7.6 Ado River
BOD (mg/l) 70 20 3
COD (mg/l) 70 30 4
Suspended solids (mg/l) 90 25 8
Oil (mg/l) 5 4 3
Nitrogen (mg/l) 40 30 1
Phosphorus (mg/l) 2 2 ND
Shinwa Seiko Co., Ltd.,
Kutsuki Plant		 pH 6.0~8.5 6.0~8.4 6.9 Ado River
BOD (mg/l) 70 20 9
COD (mg/l) 70 20 8
Suspended solids (mg/l) 90 25 5
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 40 30 3
Phosphorus (mg/l) 2 2 ND
NSK Machinery Co., Ltd. pH 5.8~8.6 5.8~8.6 7.3~8.0 Showa Marsh (pond and wetlands)
BOD (mg/l) 60 54 1
COD (mg/l) 120 108 3
Suspended solids (mg/l) 120 108 6
Oil (mg/l) 5 4.5 3
Nitrogen (mg/l) 60 54 ND
Phosphorus (mg/l) 8 7.2 ND
Amatsuji Steel Ball Mfg. Co., Ltd., Main Works pH 5~9 6~8 6.1~7.8 Sewer (no direct discharge to river or streams)
BOD (mg/l) 600 100 120
Amatsuji Steel Ball Mfg. Co., Ltd., Shiga Works pH 6.5~8.0 6.5~7.5 7.0~7.7 Shiratori River
BOD (mg/l) 20 15 16
COD (mg/l) 20 15 20
Suspended solids (mg/l) 30 20 8
Oil (mg/l) 3 2 2
Nitrogen (mg/l) 20 18 18
Phosphorus (mg/l) 2 1.8 1.0
AKS East Japan Co., Ltd. pH 5.8~8.6 5.8~8.6 7.5~8.1 Hikichi River
BOD (mg/l) 160 48 23
COD (mg/l) 160 48 13
Suspended solids (mg/l) 200 72 6
Oil (mg/l) 5 4 ND
Nitrogen (mg/l) 120 - 2
Phosphorus (mg/l) 16 - 0.7

Actual values are maximum values recorded among applicable facitilies (maximum and minimum values are shown for pH)
ND: Under lower limit of determinate quantity (Not Detectable)

Glossary

  • pH: A measure of hydrogen-ion concentration. The pH scale indicates the level of acidity or alkalinity of a solution, with pH 7 representing a neutral value.
  • COD: Chemical oxygen demand. Unsed as an indicator to determinate the density of organic water pollutants; indicates the oxygen consumed in order to oxidize the pollutants contained in the water.
  • BOD: Biochemical oxygen demand. Used as an indicator to determinate the density of organic water pollutants; indicates the oxygen consumed in order to oxidize the pollutants contained in the water using microbes.

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Change in CO2 Emissions and reduction rate per production unit (Japan)

(t-CO2)
Site Name FY2006 FY2007
Actual value Reduction rate of CO2 emission Actual value Reduction rate of CO2 emission
NSK Ltd., Fujisawa Plant 63,169 -15.4% 63,805 -15.4%
NSK Ltd. Ohtsu Plant 30,902 -3.8% 32,537 -10.9%
NSK Ltd. Ishibe Plant 44,881 -18.9% 44,765 -24.3%
NSK Ltd. Saitama Plant / NSK Precision Co, Ltd. Saitama Precision Machinery and Parts Plant 47,645 -11.1% 48,328 -9.4%
NSK Ltd. Kirihara Branch 2,475 -55.5% 1,919 -13.6%
NSK Fukushima Co., Ltd.; NSK Needle Bearing Co., Ltd., Fukushima Plant 26,295 -6.1% 27,058 -15.7%
NSK Steering Systems Co., Ltd. *2 29,019 -4.8% 31,241 -2.3%
NSK Precision Co, Ltd. Maebashi Precision Machinery and Parts Plant 19,071 0.3% 17,347 -5.0%
NSK Micro Precision., Fujisawa Plant 4,256 -10.3% 3,588 -5.6%
NSK Micro Precision., Maekawa Plant 9,079 -22.5% 9,075 -24.6%
NSK Needle Bearing Co., Ltd. Takasaki Plant 22,084 -3.9% 23,542 -2.9%
NSK Needle Bearing Co., Ltd. Haruna Plant 16,541 -29.4% 17,955 -30.4%
NSK Kyushu Co., Ltd. 10,361 5.0% 10,276 7.2%
Asahi Seiki Co., Ltd. 5,791 -14.6% 6,018 -29.5%
Amatsuji Steel Ball Mfg. Co., Ltd., Main Works 20,600 5.8% 20,857 6.4%
Amatsuji Steel Ball Mfg. Co., Ltd., Shiga Works 15,538 9.2% 15,144 7.9%
AKS East Japan Co., Ltd. 5,000 -14.0% 5,767 -18.1%
Shinwa Seiko Co., Ltd. *3 15,669 -3.0% 19,806 -9.4%
NSK Machinery Co., Ltd. 799 6.1% 842 -16.0%
NSK-Warner K.K. 38,180 -38.2% 38,398 -45.2%
Chitose Sangyo Co., Ltd. 3,871 -41.4% 3,334 -55.2%
Inoue Jikuuke Kogyo Co., Ltd. 9,153 -21.6% 9,823 -21.7%

*1 Index from environmental ministry used to calculate actual values.
The base year for reduction rate is 1999. However the base year differs at some plants depending on products.

*2 Combined data for the Akagi Plant and Soja Plant

*3 Combined data for the Shin-asahi Plant and Kutsuki Plant.

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Change in CO2 Emissions bycountry (Global)

(t-CO2)
Country FY2006 FY2007
Japan 440x 103 451x 103
U.S. 116x 103 102x 103
U.K. 36x 103 35x 103
Germany 2x 103 2x 103
Poland 121x 103 129x 103
Brazil 5x 103 6x 103
Indonesia 34x 103 36x 103
Thailand 11x 103 13x 103
Malaysia 21x 103 22x 103
India 1x 103 1x 103
China 50x 103 55x 103
Korea 23x 103 26x 103

* Adding the actual values of all scope facilities by country

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Change in total amount of waste emissions / final disposal amounts / recycling rate (Japan)

Site Name FY2006 FY2007
Total amount of emissions (t) Final disposal amount (t) Recycling rate (%) Total amount of emissions (t) Final disposal amount (t) Recycling rate (%)
NSK Ltd. Fujisawa Plant(including Technology Div.) *2 6,285 0 89.4 7,721 76 96.2
NSK Ltd. Ohtsu Plant 2,127 2.6 99.7 2,286 6.2 98.4
NSK Ltd. Ishibe Plant 3,771 2.2 96.8 4,064 9.8 97.2
NSK Ltd. Saitama Plant / NSK Precision Co, Ltd. Saitama Precision Machinery and Parts Plant 5,434 0 98.1 4,495 8.0 99.2
NSK Ltd. Kirihara Branch 233 0 97.1 156 0.3 96.2
NSK Fukushima Co., Ltd.; NSK Needle Bearing Co., Ltd., Fukushima Plant 3,001 5.5 99.5 3,419 9.5 94.4
NSK Steering Systems Co., Ltd. *3 11,810 0 98.6 12,576 18 98.7
NSK Precision Co, Ltd. Maebashi Precision Machinery and Parts Plant 2,039 0 98 2,164 0.6 99.7
NSK Micro Precision., Fujisawa Plant 141 0 70.9 115 3.3 54.4
NSK Micro Precision., Maekawa Plant 599 0 82.1 604 0.1 86.7
NSK Needle Bearing Co., Ltd. Takasaki Plant 5,100 0 76.5 5,601 49 83.5
NSK Needle Bearing Co., Ltd. Haruna Plant 6,353 0 93.7 6,739 7.5 96.4
NSK Kyushu Co., Ltd. 417 0.8 99.8 377 0 99.5
NSK-Warner K.K. 25,557 0 96.3 27,563 5.0 98.4
Inoue Jikuuke Kogyo Co., Ltd. *4 910 0 100 631 1.1 92.8
Chitose Sangyo Co., Ltd. 803 13 87.3 903 0 87.8
Asahi Seiki Co., Ltd. 4,369 10 99.2 4,561 8.5 99.8
Shinwa Seiko Co., Ltd. *5 5,037 15 99.2 7,060 12 99.6
NSK Machinery Co., Ltd. 161 1.5 99.1 187 1.6 99.2
Amatsuji Steel Ball Mfg. Co., Ltd., Main Works 3,678 26 97.2 4,544 36 97.7
Amatsuji Steel Ball Mfg. Co., Ltd., Shiga Works 2,444 4.5 98.2 2,874 203 91.3
AKS East Japan Co., Ltd. 592 31 84.2 1,452 77 82.6

*1 Includes not only the amount of direct landfill disposal but also the amount of residue after intermediate process (such as burned ash) in the total amount of emissions from FY2007.

*2 Includes data from the Fujisawa Plant's Kirihara Branch which commenced operation in Jan. 2008.

*3 Combined data for the Akagi Plant and Soja Plant.

*4 Combined data for the Tondabayashi Plant and Mihara Branch Plant.

*5 Combined data for the Shin-asahi Plant and Kutsuki Plant.

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Change in total amount of waste emissions and recycling rate by country (Global)

  FY2006 FY2007
Total amount of emissions (t) Recycling rate (%) Total amount of emissions (t) Recycling rate (%)
Japan 90,861 95.3% 100,092 96.6%
U.S. 15,813 92.6% 15,073 95.9%
U.K. 8,772 66.7% 8,018 79.7%
Germany 1,310 100.0% 1,452 100.0%
Poland 18,870 91.0% 19,510 90.1%
Brazil 4,419 97.6% 5,311 99.9%
Indonesia 5,305 91.5% 5,795 93.2%
Thailand 1,730 70.8% 1,715 79.9%
Malaysia 1,705 81.6% 1,889 84.8%
India 44 100.0% 178 99.2%
China 1,947 54.8% 3,447 61.1%
Korea 1,971 84.7% 2,125 86.6%

* Adding the actual values of all scope facilities by country

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Release and Transfer Volume of PRTR-Designated Substances

Release and Transfer Volume of PRTR-Designated Substances (thumbnail)

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Stockpile of CFC Refrigerants

Graph (Stockpile of CFC Refrigerants)

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Stockpile of Halon-Based Fire Extinguishers

Graph (Stockpile of Halon-Based Fire Extinguishers)

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