Pollution Prevention

Pollution Prevention

Management of Chemical Substances

Management of Chemical Substances at Plants in Japan

The Sumitomo Forestry Group manages hazardous chemical substances at each of three relevant Sumitomo Forestry Crest plants (Kashima Plant, Niihama Plant, Imari Plant) in accordance with the Pollutant Release and Transfer Register Law in Japan.

Management Table of Chemical Substances at Plants in Japan (FY2021)

Applicable Company Applicable Department Substance No Name of Chemical Substance Total Use
(kg/year)
Total Released
(kg/year)
Total Transferred
(kg/year)
Conversion into Products
(kg)
Air Water Soil Landfill Disposal Sewerage Outside Plant Premises
Sumitomo Forestry Crest Kashima Plant 186 Methylene chloride (dichloromethane) 6,498 4,693 0 0 0 0 1,804 1
448 Methylenebis (4,1- phenylene) diisocyanate 1,304 0 0 0 0 0 29 0
Subtotal 7,802 4,693 0 0 0 0 1,833 1
Niihama Plant 186 Methylene chloride (dichloromethane) 3,835 2,747 0 0 0 0 1,087 0
Subtotal 3,835 2,747 0 0 0 0 1,087 0
Imari Plant 4 Acrylic acid and water-soluble salts 13,430 0 0 0 0 0 0 13,430
7 n-Butyl acrylate 8,048 0 0 0 0 0 21 8,027
84 Glyoxal 2,500 0 0 0 0 0 5 2,495
134 Vinyl acetate 2,171,377 2,361 96 0 0 0 53 2,168,828
349 Phenol 55,800 0 0 0 0 0 15 55,785
395 The water-soluble salts of peroxy disulfuric acid 3,407 0 0 0 0 0 9 3,398
407 Poly (Oxyethylene) = Alkylether (alkyl group: C12~C15) 4,212 0 24 0 0 0 12 4,176
411 Formaldehyde 146,472 43 0 0 0 0 220 146,209
448 Methylenebis (4,1- phenylene) diisocyanate 10,080 0 0 0 0 0 56 10,024
Subtotal 2,415,326 2,404 120 0 0 0 390 2,412,372
Total 2,426,963 9,844 120 0 0 0 3,311 2,412,373

* Results for January to December 2021

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Management of Chemical Substances at Plants Overseas

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 Overseas (FY2021)

Applicable Company Country Name of Chemical Substance Total Use
(t/year)
Total Released (t/year) Total Transferred
(t/year)
Air Waters, etc. Waste Processing
KTI Indonesia Adhesives at MA, UA, etc. 20,059 - - 50
ASTI Indonesia Styrene, xylene, solvents 325 - 15 62
RPI Indonesia Isocyanate/Formaldehyde 512 - - 0
NPIL New Zealand Formaldehyde 339 - - 0
VECO Vietnam Isocyanate/Formaldehyde, etc. 390 - - 0
CCC United States of America MEK, alcohols, etc. 273 263 - 12
Total 21,898 263 15 124

Management of Air Pollutants

Management of Air Pollutants at Plants in Japan

The Sumitomo Forestry Group periodically conducts atmospheric emission concentration tests for dioxins, NOx, SOx, and smoke dust for each relevant plant at Sumitomo Forestry Crest (Kashima Plant, Shizuoka Plant, and Niihama Plant), the Shinshiro Plant at Sumitomo Forestry Landscaping, and at the Mombetsu Biomass Electric Power in accordance with the Air Pollution Control Act as well as local regulations. In fiscal 2021, emissions concentration testing results were all within the relevant standard values.

Management Table of Air Pollutants at Plants in Japan (FY2021)

Applicable Company Applicable Department Measured Substances Unit (Baseline) Measured Concentration Emissions to the Air
(mg-TEQ)
Sumitomo Forestry Crest Kashima Plant Dioxin ng-TEQ/m3 5 0.011 0.5
Shizuoka Plant Dioxin ng-TEQ/m3 5 1.1 3
Applicable Company Applicable Department Measured Substances Emissions to the Air
(kg/year)
Unit (Baseline) Measured Concentration Dry gas flow rate
(Nm3/h)
Sumitomo Forestry Crest Niihama Plant
(Wood Waste Boiler)
Sulfur oxides (SOx) 244 ppm 0.47 0.05 8,500
Nitrogen oxides (NOx) 1,388 ppm 350 150 8,500
Soot and dust 26 g/Nm3 0.3 0.002 8,500
Niihama Plant
(Heavy Oil Boiler)
Sulfur oxides (SOx) 1 ppm 0.1 0.029 460
Nitrogen oxides (NOx) 1 ppm 180 76 460
Soot and dust 0 g/Nm3 0.3 0.034 460
Imari Plant Sulfur oxides (SOx) 766 ppm - -

* There are no standards on the measurement frequency because this is a small-size once-through boiler.

-
The Agro-Products division of Sumitomo Forestry Landscaping Shinshiro Plant Sulfur oxides (SOx) 27 ppm 0.49 Less than 1.2 8,470
Nitrogen oxides (NOx) 896 ppm 200 56 8,470
Soot and dust 382 g/Nm3 0.2 0.049 8,470
Mombetsu Biomass Power Plant Sulfur oxides (SOx) 86,804 ppm 373 4.6 189,000
Nitrogen oxides (NOx) 270,818 ppm 250 89.2 189,000
Soot and dust 4,796 g/Nm3 0.1 0.0078 189,000
Hachinohe Biomass Power Generation Plant Sulfur oxides (SOx) 540 ppm 32.3 0.02 58,000
Nitrogen oxides (NOx) 77,332 ppm 250 66.4 58,000
Soot and dust 309 g/Nm3 0.3 0.05 58,000

* Results for January to December 2021

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Management of Air Pollutants at Plants Overseas

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. In fiscal 2021, emissions concentration testing results were all within the relevant standard values.

Management Table of Air Pollutants at Plants Overseas (FY2021)

Applicable Company Country Measured Substances Unit (Baseline) Measured Concentration
KTI Indonesia CO (Carbon monoxide) µg/Nm3 10,000 4,537
Sulfur oxides (SOx) µg/Nm3 150 41
Nitrogen oxides (NOx) µg/Nm3 200 33
Pb (lead) µg/Nm3 2 0.2
HC (hydrocarbon) ppm 160 17
O3(Ozone) ppm 150 28
Soot and dust mg/Nm3 230 26
RPI Indonesia Sulfur oxides (SOx) mg/Nm3 800 34
Nitrogen oxides (NOx) mg/Nm3 1,000 119
Soot and dust mg/Nm3 350 *
ASTI Indonesia CO (Carbon monoxide) µg/Nm3 10,000 1,716
SO2(sulfur dioxide) µg/Nm3 150 < LoD
NO2(nitrogen dioxide) µg/Nm3 200 61.6
H2S (Hydrogen sulfide) µg/Nm3 0.02 < LoD
NH3(Ammonia) ppm 2 0.07
TSP (Debu Total) µg/Nm3 230 138.6
Total Suspended Particulate Matter
VECO Vietnam Sulfur oxides (SOx) mg/Nm3 500 0
Nitrogen oxides (NOx) mg/Nm3 850 100.85
Soot and dust mg/Nm3 200 49.2
CCC United States of America Volatile organic compounds (VOCs) 1bs 200,000 163,816

* Confirmation of the dryer status and its adjustment are in process. The measurement will be made in April 2021 after adjustment.

Management of Water Pollutants

Management of Water Pollutants in Japan

The Sumitomo Forestry Group conducts periodic water quality concentration tests of waste water at the Tsukuba Research Institute, all plants of Sumitomo Forestry Crest (Kashima Plant, Shizuoka Plant, Niihama Plant, Imari Plant), Mombetsu Biomass Power Plant and Hachinohe Biomass Power Generation Plant in accordance with the Water Pollution Control Act of Japan. In fiscal 2021, the concentration measured at the Kashima Plant exceeded the statutory limit due to the effect of the soil on its grounds, but all other Sumitomo Forestry plants were within the statutory limit.

Management Table of Water Quality at Plants in Japan (FY2021)

Applicable Company Applicable Department Test Items Unit (Baseline) Measured Concentration
Sumitomo Forestry Tsukuba Research Institute pH - 5~9 7.4
BOD (Biochemical Oxygen Demand) mg/L < 600 9
COD (Chemical Oxygen Demand) mg/L - -
SS (Suspended Solids) mg/L < 600 10
Normal hexane extracts
(mineral oils)
mg/L ≦ 5 < 1
Normal hexane extracts
(animal and vegetable oils and fats)
mg/L ≦ 30 < 2
Iodine consumption mg/L ≦ 220 < 5
Phenol content mg/L ≦ 5 < 0.025
Cyanogen compound mg/L ≦ 1 < 0.1
Copper content mg/L ≦ 3 < 0.02
Zinc content mg/L ≦ 2 0.03
Soluble iron content mg/L ≦ 10 0.08
Soluble manganese content mg/L ≦ 10 < 0.02
Benzene mg/L ≦ 0.1 < 0.001
Boron and other compounds mg/L ≦ 10 0.12
Fluorine and other compounds mg/L ≦ 8 < 0.17
Sumitomo Forestry Crest Kashima Plant pH - 5.8~8.6 12.4
BOD (Biochemical Oxygen Demand) mg/L - 1.4
COD (Chemical Oxygen Demand) mg/L 5 3.4
SS (Suspended Solids) mg/L 5 < 1
Normal hexane extracts mg/L 1 < 0.5
Shizuoka Plant pH - 5.8~8.6 6.8
BOD (Biochemical Oxygen Demand) mg/L ≦ 160 68
COD (Chemical Oxygen Demand) mg/L - -
SS (Suspended Solids) mg/L ≦ 200 9.8
Niihama Plant pH - 5.8~8.6 6.8
BOD (Biochemical Oxygen Demand) mg/L - -
COD (Chemical Oxygen Demand) mg/L 160 9.8
SS (Suspended Solids) mg/L 200 80
Imari Plant pH - 5.8~8.6 7.7
BOD (Biochemical Oxygen Demand) mg/L - -
COD (Chemical Oxygen Demand) mg/L 70 13
SS (Suspended Solids) mg/L 70 8
Mombetsu Biomass Power Generation Plant pH - 5~9 7.8
BOD (Biochemical Oxygen Demand) mg/L 1,000 mg/L or less over five days 2.8
SS (Suspended Solids) mg/L 1000 2
Hachinohe Biomass Power Generation Plant pH - 5.8~8.6 7.8
BOD (Biochemical Oxygen Demand) mg/L 30 mg/L or less
(Daily average of 20 mg/L or less)
0.8
SS (Suspended Solids) mg/L 40 mg/L or less
(Daily average of 30mg/L or less)
7.5
Normal hexane extracts mg/L ≦ 5 < 1

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. In fiscal 2021, emissions concentration testing results were all within the relevant standard values.

Management Table of Water Quality at Plants Overseas (FY2021)

Applicable Company Country Test Items Unit (Baseline) Measured Concentration
KTI Indonesia pH - 6~9 7.87
BOD (Biochemical Oxygen Demand) mg/L 75 4
COD (Chemical Oxygen Demand) mg/L 125 22
TSS (Suspended Solids) mg/L 50 2
NH3-N (Ammonia concentration) mg/L 4 0.1
Fenol (Fenol concentration) mg/L 0.25 0.002
RPI Indonesia pH - 6~9 7.8
BOD (Biochemical Oxygen Demand) mg/L 75 < 7
COD (Chemical Oxygen Demand) mg/L 125 < 12.4
TSS (Suspended Solids) mg/L 50 < 8
NH3-N (Ammonia concentration) mg/L 4 < 0.09
Fenol (Fenol concentration) mg/L 0.25 < 0.1
ASTI Indonesia pH - 6~9 7.88
BOD (Biochemical Oxygen Demand) mg/L 500 31
COD (Chemical Oxygen Demand) mg/L 1,600 93
Soluble iron content mg/L 5 0.23
Soluble manganese content mg/L 2 0.02
Copper content mg/L 2 0.05
Zinc content mg/L 5 0.35
Chromium hexavalent compound mg/L 0.1 < 0.005
Chromium compound mg/L 0.5 < 0.108
Cadmium compound mg/L 0.05 0.0041
Lead compound mg/L 0.1 0.038
Hydrogen sulfide compound mg/L 0.05 0.0005
Nitrate compound mg/L 20 0.015
Nitrite compound mg/L 1 0.035
Mercury mg/L 0.002 0.0005
Fenol (Fenol concentration) mg/L 0.5 < 0.005
VECO Vietnam Rainwater Treatment in Logyard
pH - 5~9 7.97
BOD (Biochemical Oxygen Demand) mg/L 200 35.4
COD (Chemical Oxygen Demand) mg/L 300 116
SS (Suspended Solids) mg/L 200 30.7
Nitrogen compound mg/L 60 4.74
Phosphate compound mg/L 10 3.29
Wastewater treatment plant
pH - 5~9 7.28
BOD (Biochemical Oxygen Demand) mg/L 200 59.6
COD (Chemical Oxygen Demand) mg/L 300 147
SS (Suspended Solids) mg/L 200 13
Nitrogen compound mg/L 60 40.75
Phosphate compound mg/L 10 3.44
NPIL New Zealand pH - 6~9 Within standard values
BOD (Biochemical Oxygen Demand) mg/L 2,350 1,901
COD (Chemical Oxygen Demand) mg/L 6,400 4,678
SS (Suspended Solids) mg/L 650 360

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.

Storage and Proper Disposal Polychlorinated Biphenyl Waste

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.

Disposal Status of Polychlorinated Biphenyl (PCB) Waste*1

Applicable Company Applicable Facility Total Disposal in FY2019 (kg)*1 Total Disposal in FY2020 (kg)*1 Total Disposal in FY2021 (kg)*1
Sumitomo Forestry Crest (Former) Nagoya Plant*2 0 0 0
ASTI ASTI Plants 0 0 0
Subtotal 0 0 0

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

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

Management Status of Polychlorinated Biphenyl(PCB)*1

Applicable Company Applicable Facility FY2021 Onward Estimated Processing (Units) Management Status
Sumitomo Forestry Crest (Former) Nagoya Plant*2 513 Units Stabilizers in storage
ASTI ASTI Plants 17kg 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.

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 emissions in accordance with the Act on Rational Use and Proper Management of Fluorocarbons enacted April 2015. There were no leaks of fluorocarbons in fiscal 2020.

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 ENEOS (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. This method has been adopted at nine sites by FY2021 to purify areas where gasoline stands or oil depots once stood, with purification at five 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. Received the Good Design Award in October 2018 from the Japan Institute of Design Promotion. In March 2020, the Burning Field®, an enhanced variety of Japanese lawn-grass was registered with the Ministry of Land, Infrastructure, Transport and Tourism's New Technology Information System (NETIS). NETIS is a new technology information system designed by the Ministry of Land, Infrastructure, Transport and Tourism to share and provide information for use of new technologies. The use of NETIS-registered technology scores additional points for general evaluation at the bidding stage or construction performance evaluation during the usage stage, which is expected to raise awareness and standardize these new technologies at contractors involved in public works projects.

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