Safety Evaluation Table of Domestic Production Bases
Safety evaluation of substances subject to PRTR
How to approach the “Degree of Safety Evaluation”
While the PRTR Law requires reports of discharge amounts of chemical substances into the environment, the impact of chemical substances on the environment largely depends not only on the discharge amount but also on the degree of hazardousness. Therefore, it is necessary to take action based on comprehensive evaluation to reduce the risk that chemical substances pose to the environment, considering both the discharge amount and the hazardousness.
Accordingly, since 2022, with reference to the “Guidelines for Evaluation of Degree of Impact on Safety by Chemical Substances” issued by Kanagawa Prefecture, we have calculated the “translation discharge amount” obtained by multiplying the “discharge amount” of the individual substances to be reported under the PRTR Law by the “toxic coefficient” depending on the hazardousness and we have calculated the total discharge amount by adding them together. Then, we ranked the degree of impact on “human health” and on the “ecological system.” We clarified the direction of risk reduction by indicating the position of each business site with reference to “Evaluation Table of Degree of Impact on Safety.”
For example, the Hiratsuka Factory recorded a total translation discharge amount for human health of 2821.097 tons and ranked Ⅲ, while with a total translation discharge amount for the ecological system of 36.998 tons, it ranked 4.
Accordingly, the degree of impact on safety of the Hiratsuka Factory is indicated as “Ⅲ-4.”
Reasons for changes in FY 2024
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| Shinshiro Plant, Ⅶ-5→Ⅲ-4 human health impact and ecosystem impact worsened compared to last year
|
Due to changes in the evaluation method |
| Mishima Plant, Ⅵ-5→Ⅴ-4 human health impact and ecosystem impact worsened compared to last year |
Due to changes in the evaluation method |
| Mie Plant, Ⅵ-5→Ⅴ-4 human health impact and ecosystem impact worsened compared to last year |
Due to changes in the evaluation method |
| There were no changes in other plants. | |
Explanation about degree of impact on safety
Toxicity ranking and toxicity factor
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| Rank | A | B | C | D |
|---|---|---|---|---|
| Toxicity factor | 1000 | 100 | 10 | 1 |
Ranking of effects on human health
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| Rank | Total converted emissions (Effects on human health) |
|---|---|
| I | 10,000t or more |
| II | 3,000t to less than 10,000t |
| III | 1,000t to less than 3,000t |
| IV | 300t to less than 1,000t |
| V | 100t to less than 300t |
| VI | 30t to less than 100t |
| VII | 10t to less than 30t |
| VIII | Less than 10t |
Ranking of effects on the ecosystem
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| Rank | Total converted emissions (Effects on the ecosystem) |
|---|---|
| 1 | 10,000t or more |
| 2 | 1,000t to less than 10,000t |
| 3 | 100t to less than 1,000t |
| 4 | 10t to less than 100t |
| 5 | Less than 10t |
Changes in safety evaluation of each plant
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| Plant Name | 2020 | 2021 | 2022 | 2023 | 2024 | FY 2024 Improvement or worsened points |
|---|---|---|---|---|---|---|
| Hiratsuka Factory | Ⅱ-4 | Ⅲ-4 | Ⅲ-5 | Ⅲ-4 | Ⅲ-4 | There was no change from the previous year (FY 2023). |
| Adhesives and Sealants Plant | Ⅶ-5 | － | － | － | － | Not applicable after 2021. |
| Nagano Plant | Ⅷ-5 | Ⅷ-5 | Ⅷ-5 | Ⅷ-5 | Ⅷ-5 | There was no change from the previous year (FY 2023). |
| Ibaraki Plant | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | There was no change from the previous year (FY 2023). |
| Shinshiro Plant | Ⅴ-4 | Ⅶ-5 | Ⅶ-5 | Ⅶ-5 | Ⅳ-4 | The impacts on ecosystems and human health have worsened compared to the previous fiscal year (FY 2023). |
| Shinshiro-Minami Plant | Ⅴ-5 | Ⅴ-5 | Ⅴ-5 | Ⅴ-5 | Ⅴ-5 | There was no change from the previous year (FY 2023). |
| Mie Plant | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | Ⅴ-4 | The impacts on ecosystems and human health have worsened compared to the previous fiscal year (FY 2023). |
| Mishima Plant | Ⅴ-4 | Ⅵ-5 | Ⅵ-5 | Ⅵ-5 | Ⅴ-4 | The impacts on ecosystems and human health have worsened compared to the previous fiscal year (FY 2023). |
| Onomichi Plant | Ⅶ-5 | Ⅶ-5 | Ⅶ-5 | Ⅷ-5 | Ⅷ-5 | There was no change from the previous year (FY 2023). |
- As the Nagano Plants have no substances to be reported (less than 1 ton), their details are not attached.
- Each plant discloses information in accordance with the requirements of the law.
Total amounts of discharge and transfer for PRTR in domestic factories
Total amounts of discharge and transfer for PRTR in domestic factories (by location)
Onomichi Plant
Shinshiro Plant
Shinshiro-Minami Plant
Mishima Plant
Mie Plant
Hiratsuka Factory
Ibaraki Plant
Nagano Plants
