Updated in September 2024
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|---|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| From energy sources | Thousand tons | 1,207 | 1,147 | 1,073 | 980 | 1,116 | 1,029 | 862 | 1,132 |
| From non-energy sources | Thousand tons | 970 | 889 | 891 | 772 | 853 | 818 | 696 | 866 |
CO2 emissions
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Denka | Ton | 77 | 78 | 68 | 83 | 61 | 77.8 | 72.8 |
| Affiliates | Ton | 7 | 8 | 8 | 11 | 10 | 9.35 | 4.8 |
PRTR Substances
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target | |
|---|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |||
| Denka | Amount of waste generated | Tons | 121,433 | 110,265 | 103,104 | 120,927 | 121,687 | 104,855 | 125,007 |
| Denka | Amount of final landfill waste | Tons | 49 | 42 | 73 | 63 | 50 | 48 | 49 |
| Denka | Emissions ratio | % | 0.04 | 0.04 | 0.07 | 0.05 | 0.04 | 0.05 | 0.04 |
| Domestic Affiliates | Amount of waste generated | Tons | 1,854 | 1,362 | 538 | 549 | 384 | 513 | 521 |
| Domestic Affiliates | Amount of final landfill waste | Tons | 196 | 161 | 43 | 38 | 18 | 16 | 16 |
| Group’s Total | Amount of waste generated | Tons | 123,287 | 111,627 | 103,642 | 121,476 | 122,071 | 105,368 | 125,528 |
| Group’s Total | Amount of final landfill waste | Tons | 245 | 203 | 116 | 101 | 68 | 64 | 65 |
| Group’s Total | Emissions ratio | % | 0.20 | 0.18 | 0.11 | 0.08 | 0.06 | 0.06 | 0.05 |
Final waste disposal volume and emission rate of domestic group companies
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Denka | Ton | 47 | 43 | 41 | 46 | 33 | 42 | 47 |
| Affiliates | Ton | 105 | 110 | 149 | 132 | 126 | 85 | 123 |
SOx
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Denka | Tons | 81 | 76 | 66 | 109 | 68 | 97.4 | 107 |
| Affiliates | Tons | 26 | 16 | 17 | 14 | 16 | 13.3 | 13.5 |
Soot and Dust
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Denka | Tons | 4,037 | 3,751 | 3,685 | 3,393 | 3,747 | 3,579 | 3,560 |
| Affiliates | Tons | 777 | 584 | 632 | 827 | 794 | 491 | 530 |
NOx
●●●●●●
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|---|
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Denka | Tons | 234 | 196 | 178 | 181 | 275 | 250 | 320 |
| Affiliates | Tons | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
COD (BOD)
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|
| 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Water Used | km3 | 56,852 | 54,369 | 58,257 | 58,451 | 58,889 | 74,012 |
| 7 bases | 8 bases | ||||||
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|
| 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Water Used | km3 | 2,568 | 56,067 | 50,464 | 47,166 | 64,952 | 65,204 |
| 16 bases | 17 bases | ||||||
| Fiscal Year | Unit | Result | Result | Result | Result | Result | Target |
|---|---|---|---|---|---|---|---|
| 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | ||
| Water Used | km3 | 59,420 | 110,436 | 108,721 | 105,617 | 123,841 | 139,215 |
| 23 bases | 25 bases | ||||||
The following table shows PRTR substances emitted and transferred exceeding one ton.
| PRTR Substances | No. | Emissions | Amount Transferred (to the outside) | |||
|---|---|---|---|---|---|---|
| Air | Water | Soil | Landfill | |||
| n-butyl acrylate | 1-009 | 0 | 0 | 0 | 0 | 1 |
| Acrylonitrile | 1-011 | 0 | 0 | 0 | 0 | 5 |
| Acetaldehyde | 1-017 | 0 | 2 | 0 | 0 | 0 |
| Aniline | 1-020 | 0 | 0 | 0 | 0 | 1 |
| Ethyl benzene | 1-073 | 2 | 0 | 0 | 0 | 18 |
| 銀及びその水溶性化合物 | 1-105 | 0 | 0 | 0 | 0 | 0 |
| N,N-Dimethylformamide | 1-264 | 0 | 0 | 0 | 0 | 11 |
| Styrene | 1-275 | 15 | 0 | 0 | 0 | 59 |
| Water soluble copper salt | 1-314 | 0 | 2 | 0 | 0 | 0 |
| ドデシル硫酸ナトリウム | 1-318 | 0 | 0 | 0 | 0 | 0 |
| Toluene | 1-347 | 13 | 1 | 0 | 0 | 31 |
| Carbon disulfide | 1-361 | 1 | 0 | 0 | 0 | 0 |
| Hydrogen fluoride and its water-soluble salt | 1-414 | 1 | 1 | 0 | 0 | 28 |
| n-Hexane | 1-436 | 0 | 0 | 0 | 0 | 1 |
| Boron and its compounds | 1-458 | 0 | 9 | 0 | 0 | 8 |
| Methyl methacrylate | 1-469 | 2 | 0 | 0 | 0 | 6 |
| シクロヘキサン | 1-176 | 23 | 0 | 0 | 0 | 30 |
| 炭化けい素 | 1-280 | 0 | 0 | 0 | 0 | 10 |
| メチルイソブチルケトン | 1-472 | 3 | 0 | 0 | 0 | 90 |
| Ｎ－メチル－２－ピロリドン | 1-489 | 0 | 0 | 0 | 0 | 0 |
| Total (tons/year) | 61 | 15 | 0 | 0 | 300 | |
| Dioxin (mg-TEQ/year) | 1-278 | 156 | 8.4 | 0 | 0 | 5.9 |
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