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| noturīgs organiskais piesārņotājs ((Organic pollutants that do not break down chemically and remain in the environment. Pollutants with higher persistence may produce more harmful environmental effects)) | |||
| Persistent: 18 phrases, 5 sujets |
| Chimie | 2 |
| Environnement | 9 |
| Finances | 1 |
| Général | 3 |
| Microsoft | 3 |