Management of Chemical Substances

Management of Chemical Substances at Plants in Japan

The Sumitomo Forestry Group manages chemical substances at each of three relevant Sumitomo Forestry Crest Co., Ltd. plants (Kashima Plant, Niihama Plant, Imari Plant) in accordance with the Pollutant Release and Transfer Register Law related to promoting understanding, management, and reforms for designated chemical substance emissions to the environment in Japan.

Management Table of Chemical Substances at Plants in Japan (FY 2017)

Appli
cable
Comp
any
Appli
cable
Depar
tment
Subst
ance
No.
Name of
Chemical
Substance
Total
Use
(kg/
year)
Emissions
(kg/year)
Total
Transfer
(kg/year)
Conver
sion
into
Prod
ucts
Air
*For
VOC
regul
ations
Water Soil Land
fill
Disp
osal
Sewe
rage
Unre
lated
Offices
Sumitomo
Forestry
Crest
Co., Ltd.
Kashima Plant 186 Methylene chloride (dichloromethane) 12,235 8,200 0 0 0 0 4,000 1
448 Methylenebis (4,1- phenylene) diisocyanate 1,316 0 0 0 0 0 65 0
Subtotal 13,552 8,200 0 0 0 0 4,065 1
Niihama Plant 186 Methylene chloride (dichloromethane) 4,810 3,300 0 0 0 0 1,500 0.6
Subtotal 4,810 3,300 0 0 0 0 1,500 0.6
Imari 4 Acrylic acid and water-soluble salts 13,378 0 0 0 0 0 0 13,378
7 n-Butyl acrylate 10,711 0 0 0 0 0 30 10,681
84 Glyoxal 3,454 0 0 0 0 0 6.9 3,447
134 Vinyl acetate 2,295,359 2,400 100 0 0 0 39 2,292,812
349 Phenol 80,280 0 0 0 0 0 26 80,254
395 The water-soluble salts of peroxydisulfuric acid 3,835 0 0 0 0 0 9.4 3,826
407 Poly (Oxyethylene) = Alkylether (alkyl group: C12 to C15) 2,477 0 12 0 0 0 7.0 2,458
411 Formaldehyde 179,463 55 0 0 0 0 390 179,014
415 Methacrylic acid 1,180 0 0 0 0 0 0 1,180
448 Methylenebis (4,1- phenylene) diisocyanate 12,156 0 0 0 0 0 59 12,097
Subtotal 2,602,293 2,455 112 0 0 0 567 2,599,147
Total 2,420,655 13,955 112 0 0 0 6,132 2,599,149

Management of Chemical Substances at Overseas Plants

Chemical substances, including adhesives and coatings, in the table below are managed at overseas plants in accordance with the management regulations for chemical substances in each country.

Management Table of Chemical Substances at Plants in Overseas (FY 2017)

Applicable Company Country Name of Chemical Substance Total Use (t/year) Emissions (kg/year) Total Transfer (kg/year)
Air *For VOC regulations Waters, etc Conversion into Products
KTI Indonesia Adhesives at MA, UA, etc. 21,244 - - 11,413
ASTI Indonesia Styrene, xylene, solvents 23 - - 6
RPI Indonesia Isocyanate/
formaldehyde
612 - - 313
NPIL New Zealand Formaldehyde 382 - - 382
VECO Vietnam Isocyanate/
formaldehyde, etc.
520 0 2.9 224
CCC United States of America MEK, alcohols, etc 82 71 - 11
Total 22,863 71 2.9 12,349

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Management of Air Pollutants

Management of Air Pollutants at Plants in Japan

The Sumitomo Forestry Group periodically conducts emission concentration tests for dioxins, NOx, SOx, and smoke dust in the air for each relevant plant at Sumitomo Forestry Crest Co., Ltd. (Kashima Plant, Niihama Plant, Imari Plant), the Shinshiro Plant at Sumirin Agro Products (current: Sumitomo Forestry Landscaping) and at the Mombetsu Biomass Power Plant in accordance with the Air Pollution Control Act as well as local regulations.

Management Table of Air Pollutants at Plants in Japan (FY 2017)

Applicable Company Applicable Department Measured Substances Emissions (kg/year) (Limit) Measured Concentration Emissions to the Air (mg-TEQ)
Unit  
Sumitomo Forestry Crest Co., Ltd. Kashima Plant Dioxin - ng-TEQ/m³ 5 2.3 51
Shizuoka Plant Dioxin - ng-TEQ/m³ 5 0.69 2.3
Applicable Company Applicable Department Measured Substances Emissions (kg/year) (Limit) Measured Concentration Dry gas flow rate (Nm³/h)
Unit  
Sumitomo Forestry Crest Co., Ltd. Niihama Plant (Waste Wood Boiler) SOx (Sulfur oxide) 3.7 ppm - 0.5 2,391
NOx (Nitrogen oxide) 403.9 ppm 350 85 2,391
Soot and dust 578.2 g/Nm³ 0.3 0.16 2,391
Niihama Plant (Heavy Oil Boiler) SOx (Sulfur oxide) 449.4 ppm - 0.5 652
NOx (Nitrogen oxide) 74.8 ppm 180 60 652
Soot and dust 6.7 g/Nm³ 0.3 0.01 652
Imari Plant SOx (Sulfur oxide) 1,829 - - - -
Sumirin Agro-Products Co., Ltd. (Current: Sumitomo Forestry Landscaping Co., Ltd. Agriculture Business) Shinshiro Plant SOx (Sulfur oxide) 576 ppm - < 1.2 13,100
NOx (Nitrogen oxide) 37 ppm 200 26 13,100
Soot and dust 54 g/Nm³ 0.2 < 0.005 13,100
Mombetsu Biomass Power Plant SOx (Sulfur oxide) 182,881 ppm 373 10.0 189,000
NOx (Nitrogen oxide) 262,090 ppm 250 89.2 189,000
Soot and dust 3,078 g/Nm³ 0.1 0.0039 189,000
Hachinohe Biomass Power Generation Plant SOx (Sulfur oxide) 1,220 ppm 32.3 0.34 71,790
NOx (Nitrogen oxide) 5,482 ppm 250 30.0 71,790
Soot and dust 0.0 g/Nm³ 0.3 0.0 71,790

Management of Air Pollutants at Overseas Plants

At overseas plants, the Sumitomo Forestry Group measures the concentration of NOx, SOx and smoke dust in Indonesia and Vietnam as well as VOC emission in the United States of America in accordance with the regulations of each country and region.

Management Table of Air Pollutants at Plants Overseas (FY 2017)

Applicable Company Country Measured Substances (Limit) Measured Concentration Dry gas flow rate (Nm³/h)
Unit  
KTI Indonesia CO (Carbon monoxide) µg/Nm³ 22,600 4,502.0 -
SOx (Sulfur oxide) µg/Nm³ 262 31.0 -
NOx (Nitrogen oxide) µg/Nm³ 92.5 14.0 -
H2S (Hydrogen sulfide) µg/Nm³ 42 8.78 -
NH3 (Ammonia) µg/Nm³ 1,360 117.0 -
O3 (Ozone) µg/Nm³ 200 32.0 -
Soot and dust mg/Nm³ 0.26 0.07 -
RPI Indonesia SOx (Sulfur oxide) mg/Nm³ 800 Below Detection Boundary -
NOx (Nitrogen oxide) mg/Nm³ 1,000 68 -
Soot and dust mg/Nm³ 350 323.4 -
ASTI Indonesia CO (Carbon monoxide) µg/Nm³ 15,000 2,289.0 -
SOx (Sulfur oxide) µg/Nm³ 632 8.3 -
NOx (Nitrogen oxide) µg/Nm³ 316 20.3 -
H2S (Hydrogen sulfide) µg/Nm³ 0.02 Below Detection Boundary -
NH3 (Ammonia) ppm 2.0 0.069 -
TSP (Debu Total) Total Suspended Particulate Matter µg/Nm³ 230 148  
VECO Vietnam SOx (Sulfur oxide) mg/Nm³ 500 3.94 -
NOx (Nitrogen oxide) mg/Nm³ 850 47.5 -
Soot and dust mg/Nm³ 200 68.81 -
CCC United States of America Volatile organic compounds (VOCs) 1bs 200,000 181,152  

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Management of Water Pollutants

Management of Water Pollutants in Japan

The Sumitomo Forestry periodically conducts water pollution tests of waste water at the Tsukuba Research Institute, Sumitomo Forestry Crest Co., Ltd. (Kashima Plant, Shizuoka Plant, Niihama Plant and Imari Plant), the Mombetsu Biomass Power Plant and the Hachinohe Biomass Power Generation Plant in accordance with the Water Pollution Control Act of Japan.

Management Table of Water Quality at Plants in Japan (FY 2017)

Applicable Company Applicable Department Test Items (Limit) Measured Concentration
Unit  
Sumitomo Forestry Tsukuba Research Institute pH - 5 to 9 7.9
BOD (Biochemical Oxygen Demand) mg/L < 600 10.0
SS (Suspended Solids) mg/L < 600 6.0
Substances normal hexane extracts/mineral oils mg/L ≦ 5 < 1
Substances normal hexane extracts/animal and vegetable oil and fat mg/L ≦ 30 < 1
Iodine consumption mg/L ≦ 220 < 5
Phenols mg/L ≦ 5 < 0.025
Copper content mg/L ≦ 3 < 0.025
Zinc content mg/L ≦ 2 0.03
Soluble iron content mg/L ≦ 10 0.025
Soluble manganese content mg/L ≦ 10 < 0.02
Cyanogen compound mg/L ≦ 1 < 0.1
Benzene mg/L ≦ 0.1 < 0.001
Boron and other compounds mg/L ≦ 10 0.04
Fluorine and other compounds mg/L ≦ 8 < 0.17
Sumitomo Forestry Crest Co., Ltd. Kashima Plant pH - 5.8 to 8.6 8.9
BOD (Biochemical Oxygen Demand) mg/L - 1.4
COD (Chemical Oxygen Demand) mg/L 10.0 4.1
SS (Suspended Solids) mg/L 10.0 1.0
Shizuoka Plant pH - 5.8 to 8.6 7.6
BOD (Biochemical Oxygen Demand) mg/L 160 28.0
COD (Chemical Oxygen Demand) mg/L - -
SS (Suspended Solids) mg/L 200 1.0
Niihama Plant pH - 5.8 to 8.6 8.0
BOD (Biochemical Oxygen Demand) mg/L - -
COD (Chemical Oxygen Demand) mg/L 160 2.0
SS (Suspended Solids) mg/L 200.0 7.0
Imari Plant pH - 5.8 to 8.6 7.9
BOD (Biochemical Oxygen Demand) mg/L - -
COD (Chemical Oxygen Demand) mg/L 70 30.2
SS (Suspended Solids) mg/L 70 5.6
Mombetsu Biomass Power Plant pH - 5 to 9 7.6
BOD (Biochemical Oxygen Demand) mg/L 1,000 mg/L or less over five days 6
SS (Suspended Solids) mg/L 1,000 2
Hachinohe Biomass Power Generation Plant pH - 5.8 to 8.6 7.6

Management of Water Pollutants Overseas

The Sumitomo Forestry Group conducts concentration tests of water pollutants at overseas plants in accordance with the water quality regulations for waste water in each country.

Management Table of Water Quality at Plants Overseas (FY 2017)

Applicable Company Applicable Department Test Items (Limit) Measured Concentration
Unit  
KTI Indonesia pH - 6 to 9 7.0
BOD (Biochemical Oxygen Demand) mg/L 75.0 4.0
COD (Chemical Oxygen Demand) mg/L 125.0 20.0
TSS (Suspended Solids) mg/L 50.0 2.0
NH3-N (Ammonia concentration) mg/L 4.0 0.08
Fenol (Fenol concentration) mg/L 0.25 0.001
RPI Indonesia pH - 6 to 9 7.8
BOD (Biochemical Oxygen Demand) mg/L 75 2.9
COD (Chemical Oxygen Demand) mg/L 125 31.9
TSS (Suspended Solids) mg/L 50 13
NH3-N (Ammonia concentration) mg/L 4 0.2
Fenol (Fenol concentration) mg/L 0.25 0.003
ASTI Indonesia pH - 6 to 9 7.9
BOD (Biochemical Oxygen Demand) mg/L 50.0 10.0
COD (Chemical Oxygen Demand) mg/L 100.0 19.8
Soluble iron content mg/L 5 0.2741
Soluble manganese content mg/L 2 0.0362
Copper content mg/L 2 0.028
Zinc content mg/L 5 0.0589
Chromium hexavalent compound mg/L 0.1 0.0001
Chromium compound mg/L 0.5 0.0122
Cadmium compound mg/L 0.05 0.0064
Lead compound mg/L 0.1 < 0.030
Hydrogen sulfide compound mg/L 0.05 0.0072
Nitrate compound mg/L 20 0.1782
Nitrite compound mg/L 1 0.0029
VECO Vietnam pH - 5 to 9 7.36
BOD (Biochemical Oxygen Demand) mg/L 100 24.8
COD (Chemical Oxygen Demand) mg/L 300 70.85
SS (Suspended Solids) mg/L 200 11.0
Nitrogen compound mg/L 40 8.74
Phosphate compound mg/L 6 0.84
NPIL New Zealand pH - 6 to 9 Conformity
BOD (Biochemical Oxygen Demand) mg/L 2,350 Conformity
COD (Chemical Oxygen Demand) mg/L 6,400 Conformity
SS (Suspended Solids) mg/L 650 Conformity

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Appropriate Disposal of Building Materials Containing Asbestos

The Sumitomo Forestry Group has secured the proper disposal routes for asbestos. Sumitomo Forestry strives to prevent the spread of asbestos in the demolition work of residences through the formulation of the Guide for Appropriate Measures during Demolition Work.

The Group is also engaged in proper disposal of asbestos in the buildings of each office based on the law.

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Proper Disposal of Building Materials Containing Asbestos

We are also furthering the proper management and processing of Polychlorinated Biphenyl (PCB) contained in equipment such as spent high-voltage capacitors in accordance with the Act on Special Measures Concerning Promotion of Proper Treatment of PCB Wastes.

Sumitomo Forestry Crest disposed 44,190kg of PCB following fiscal 2016 due to changes such as the removal of equipment following the close of plants in fiscal 2017. As of the end of fiscal 2017, the Company has stored 513 units. Kawanokita Development completed all PCB processing in fiscal 2017. Tsukuba Research Institute currently has four units of such equipment in use and a total of 517 units that are being managed.

Disposal Status of Polychlorinated Biphenyl (PCB) Waste*1

Applicable Company Applicable Facility Total Disposal in FY 2015 (kg)*1 Total Disposal in FY 2016 (kg)*1 Total Disposal in FY 2017 (kg)*1
Sumitomo Forestry Crest Co., Ltd. Imari Plant 1,637 1,385 0
(Former) Nagoya Plant*2 1,720 0 44,190
(Former) Kyushu Plant**2 3,695 8,570 0
Kawanokita Development Co., Ltd. 0 0 350
Subtotal 7,052 9,955 44,540

*1 The total disposal amount is based on the disposal notification and includes the weight of the storage container.

*2 The (Former) Nagoya Plant and the (Former) Kyushu Plant were closed in end of June 2015.

Management Status of Polychlorinated Biphenyl (PCB)*1

Applicable Company Applicable Facility FY 2017 Onward Estimated Processing Management Status
Sumitomo Forestry Crest Co., Ltd. Imari Plant 4 units Capacitors in use
(Former) Nagoya Plant*2 513 units Stabilizers in storage
ASTI ASTI Plants 1,334kg Electrical Boards

*1 The equipment included above is equipment currently in use or in storage which is being evaluated for processing

*2 The (Former) Nagoya Plant was closed in end of June 2015.

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Management of Fluorocarbon Emissions

The Sumitomo Forestry Group is managing fluorocarbon emissions related to the fluorocarbon gases that are used as coolants by equipment such as air-conditioning and refrigeration at affiliate companies, and for testing equipment at the Tsukuba Research Institute, through periodic inspections of fluorocarbon leakage indicated in the table below in accordance with the Act on Rational Use and Proper Management of Fluorocarbons enacted April 2015.

Management Status of Fluorocarbon Emissions

Applicable Company Applicable Facility FY 2017 Fluorocarbons Filled (kg) Conversion (kgCO2)
Sumitomo Forestry Tsukuba Research Institute (Testing equipment, etc.) 5.0 9.05
Sumitomo Forestry Crest Co., Ltd. Day Forest Higashiyamada 2.2 4.60
Total 7.2 13.65

* Fluorocarbon emissions are managed by the amount of fluorocarbons filled at periodic inspections of the equipment

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Project for Soil Purification Technology and Environmental Remediation Aided by Plants

An issue in re-using the site of an old factory is the environmental impact associated with soil contamination and the cost burden of any remedial measures. For example, under the revised Fire Service Act of Japan, gasoline stations are now obliged to repair any underground tanks that have lain under the ground for more than 40 years, and as a consequence of this, it is expected that between 1,000 and 2,000 stations will close down each year.

In order to meet the demand for environmental remediation and measures dealing with soil contamination, the Sumitomo Forestry Group has been working on cleansing contaminated soil by using the functions of plants (phytoremediation). As part of this, during fiscal 2012, in collaboration with JXTG Nippon Oil & Energy (JX Nippon Oil & Energy Corporation at the time), the Group developed a method for purifying soil contaminated with oil using Burning Field, a variety of Japanese lawn-grass independently registered by the Group.

One of the functions possessed by the variety of Japanese lawn-grass used in this method is that the nutrients transpiring from its roots activate microorganisms in the soil, and the upshot of this is that it has the potential to inexpensively reduce the oil content in polluted soil and reduce environmental impact at low costs. This method has been adopted at nine sites so far to purify areas where gasoline stands or oil depots once stood, with purification at three sites now complete.

In fiscal 2013 and 2014, the Ministry of the Environment conducted a study on low-cost, low-impact technologies for surveying and for counteracting contaminated soil in addition to presenting the Environmental Measures Exemplary Efforts Awards (Minister of the Environment Award) in 2013. The study found that oil-degrading microorganisms tend to become more active, and were recognized as having potential to be applied at sites heavily contaminated with oil.

Moving forward, by steadily producing results in soil purification based on this technique, the Group will continue to help resolve the nationwide problem of oil contamination.

Grass laid on the site where a gasoline station once stood

Grass laid on the site where a gasoline station once stood

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CSR