Because of pollution along the Estoril Coast, you should not swim any closer to Lisbon than at Estoril itself, which has been granted an EU blue flag (for safe conditions).
The pollution is expected to be cleaned up in five years.
mnli hypothesis: The pollution is expected to be cleaned up in five years. premise: Because of pollution along the Estoril Coast, you should not swim any closer to Lisbon than at Estoril itself, which has been granted an EU blue flag (for safe conditions).