Water Quality at S. MARTINHO DO PORTO

🇵🇹 Portugalcoastal39.510, -9.136

This data reflects historical water quality classifications and is not a real-time safety assessment. Water quality can change rapidly due to weather, sewage events, or algae blooms. Always check with local authorities or lifeguard stations before swimming.

A+
Excellent

Safe to swim

This bathing water meets the highest EU water quality standards. Very low levels of bacterial contamination detected.

Based on 2024 bathing season data

Source: European Environment Agency / EU Bathing Water Directive (2006/7/EC)

Latest Measurements

Intestinal Enterococci
61cfu/100ml
Exc
Good
Suf
E. coli
161cfu/100ml
Exc
Good
Suf

Sample date: 2024-08-19

5-Year Quality Trend

E
2024
E
2023
E
2022
E
2021
E
2020
ExcellentGoodSufficientPoor

Season Monitoring Results

DateEnterococciE. coli
2024-08-1961161
2024-08-063030
2024-07-2330144
2024-07-084661
2024-06-2630144
2024-06-204677
2024-06-18347627
2024-06-11195161

Values in cfu/100ml (colony-forming units per 100ml)

What are E. coli and enterococci?

E. coli and intestinal enterococci are indicator bacteria for fecal contamination. Their presence suggests sewage or animal waste in the water, which may contain harmful pathogens. The EU Bathing Water Directive (2006/7/EC) classifies water quality based on these two indicators.