| 2020 | Lisbon, Baixa | 10 tons | Large fatberg caused by cooking oils, fats, and sanitary products, blocking a main sewer line. |
| 2020 | Porto, Ribeira | 8 tons | Found in a historic area, composed mainly of fats and organic waste from restaurants. |
| 2020 | Lisbon, Bairro Alto | 12 tons | Fatberg discovered in a central area, composed primarily of cooking fats and sanitary products. |
| 2020 | Faro, City Center | 7 tons | Smaller fatberg found in a residential area, causing localized flooding due to blocked drains. |
| 2020 | Porto, Boavista | 9 tons | Disrupted sewer flow in a busy district, requiring significant removal efforts. |
| 2020 | Lisbon, Alfama | 11 tons | Major fatberg in a historic district, primarily composed of fats and non-biodegradable items. |
| 2020 | Coimbra, City Center | 8 tons | Found near a commercial area, primarily composed of fats and oils from nearby food outlets. |
| 2020 | Lisbon, Parque das Nações | 13 tons | Large fatberg caused by the accumulation of cooking oil and wipes, leading to sewer blockage. |
| 2020 | Porto, Matosinhos | 10 tons | Fatberg discovered near the waterfront, primarily composed of organic waste from restaurants. |
| 2020 | Lisbon, Rossio | 14 tons | Largest fatberg of the year, causing significant sewer disruptions in a tourist area. |
| 2020 | Faro, Olhão | 7 tons | Smaller fatberg found near a residential district, primarily composed of household waste. |
| 2020 | Porto, Foz do Douro | 9 tons | Fatberg discovered near a beach area, causing localized flooding and sewer overflow. |
| 2021 | Lisbon, Belém | 12 tons | Major fatberg found near a historic site, caused by the accumulation of fats and oils. |
| 2021 | Porto, Gaia | 11 tons | Fatberg caused by improper disposal of cooking fats, blocking a main sewer line. |
| 2021 | Lisbon, Chiado | 13 tons | Significant fatberg discovered in a commercial district, leading to major sewer disruptions. |
| 2021 | Faro, Quarteira | 8 tons | Found near a tourist area, primarily composed of fats and organic waste from restaurants. |
| 2021 | Porto, Cedofeita | 10 tons | Fatberg caused by improper waste disposal, requiring extensive removal efforts. |
| 2021 | Lisbon, Marquês de Pombal | 14 tons | One of the largest fatbergs reported, blocking a main sewer line in a busy intersection. |
| 2021 | Faro, Vilamoura | 9 tons | Found near a resort area, composed primarily of fats and oils from nearby hotels. |
| 2021 | Porto, Campanhã | 12 tons | Fatberg discovered in a residential area, causing localized flooding and sewer blockage. |
| 2021 | Lisbon, Alvalade | 11 tons | Major fatberg in a residential district, primarily composed of fats and non-biodegradable items. |
| 2021 | Faro, Loulé | 8 tons | Fatberg caused by improper disposal practices in a residential area, leading to a sewer blockage. |
| 2021 | Porto, Bonfim | 10 tons | Disrupted sewer flow in a busy district, requiring significant removal efforts. |
| 2021 | Lisbon, Santos | 13 tons | Significant fatberg found near a commercial area, primarily composed of cooking oils and fats. |
| 2022 | Faro, Tavira | 7 tons | Smaller fatberg discovered in a residential area, composed mainly of household waste. |
| 2022 | Porto, Massarelos | 9 tons | Fatberg found near a university, primarily composed of organic waste and sanitary products. |
| 2022 | Lisbon, Areeiro | 12 tons | Large fatberg caused by a mix of fats, oils, and non-biodegradable items, blocking a main sewer line. |
| 2022 | Faro, Almancil | 8 tons | Found in a tourist area, primarily composed of fats and oils from nearby restaurants. |
| 2022 | Porto, Paranhos | 11 tons | Fatberg discovered in a residential district, leading to significant sewer blockages. |
| 2022 | Lisbon, Lapa | 14 tons | Largest fatberg reported in mid-2022, blocking a main sewer line in a historic district. |
| 2022 | Faro, Albufeira | 9 tons | Found near a popular beach, primarily composed of fats, oils, and sanitary products. |
| 2022 | Porto, Aldoar | 10 tons | Fatberg causing major sewer blockages, leading to traffic disruptions and localized flooding. |
| 2022 | Lisbon, Estrela | 13 tons | Significant fatberg discovered near a commercial area, leading to major sewer disruptions. |
| 2022 | Faro, Lagos | 8 tons | Found near a tourist area, primarily composed of fats and oils from local businesses. |
| 2022 | Porto, Lordelo do Ouro | 11 tons | Fatberg discovered in a residential area, caused by improper disposal practices. |
| 2022 | Lisbon, Campo de Ourique | 14 tons | Large fatberg causing significant sewer blockages in a busy district, requiring extensive removal. |
| 2023 | Faro, Portimão | 9 tons | Fatberg found near a tourist area, primarily composed of fats and organic waste from restaurants. |
| 2023 | Porto, Ramalde | 10 tons | Significant fatberg discovered in a residential area, causing localized flooding. |
| 2023 | Lisbon, Amoreiras | 13 tons | Large fatberg found near a shopping district, primarily composed of fats, oils, and sanitary products. |
| 2023 | Faro, Lagoa | 8 tons | Found in a residential area, primarily composed of household waste and non-biodegradable items. |
| 2023 | Porto, Antas | 11 tons | Fatberg causing sewer blockages and traffic disruptions in a busy district. |
| 2023 | Lisbon, Benfica | 14 tons | Significant fatberg discovered in a residential area, leading to major sewer blockages. |
| 2023 | Faro, Silves | 9 tons | Found near a tourist attraction, primarily composed of fats and oils from local businesses. |
| 2023 | Porto, Carvalhido | 10 tons | Major fatberg causing significant disruptions in a residential district. |
| 2023 | Lisbon, Odivelas | 12 tons | Large fatberg found near a residential area, composed mainly of fats and oils. |
| 2023 | Faro, Alvor | 8 tons | Found near a beach area, primarily composed of fats and oils from nearby hotels and restaurants. |
| 2023 | Porto, Boavista | 13 tons | Fatberg discovered in a commercial district, leading to significant sewer blockages. |
| 2023 | Lisbon, Rato | 14 tons | Largest fatberg reported at the end of 2023, causing extensive sewer damage in a busy district. |
| 2024 | Faro, Quarteira | 9 tons | Fatberg found near a tourist area, primarily composed of fats, oils, and sanitary products. |
| 2024 | Porto, Foz do Douro | 10 tons | Major fatberg discovered near a residential area, causing localized flooding and sewer blockage. |
| 2024 | Lisbon, São Domingos de Benfica | 12 tons | Fatberg found in a residential district, caused by improper disposal of fats and oils. |
| 2024 | Faro, Albufeira | 8 tons | Found near a resort area, primarily composed of fats and oils from local restaurants and hotels. |
| 2024 | Porto, Cedofeita | 11 tons | Significant fatberg discovered in a residential area, causing major sewer blockages. |
| 2024 | Lisbon, Telheiras | 14 tons | Large fatberg causing extensive sewer blockages in a busy residential district. |
| 2024 | Faro, Loulé | 9 tons | Found near a popular market, primarily composed of fats, oils, and non-biodegradable items. |
| 2024 | Porto, Paranhos | 10 tons | Major fatberg discovered in a residential district, causing localized flooding and sewer blockage. |