Monitoramento da qualidade sanitária das areias de praias urbanas do município de Guarujá-SP
Data
2024-08-26
Autores
Paulo, Mateus Seixas de Melo Frigerio 
Orientadores
Gregoracci, Gustavo Bueno
Tipo
Dissertação de mestrado
Título da Revista
ISSN da Revista
Título de Volume
Resumo
Entre 2022 a 2024, por meio de parceria firmada entre poder público, universidade e entidade privada, Guarujá monitorou a qualidade sanitária das areias de suas praias, com o estabelecimento de metodologia de monitoramento para verificar níveis de contaminação por coliformes totais na areia e enterococos na água. Neste cenário, este trabalho tem por objetivo descrever a metodologia de monitoramento da qualidade das areias de praias de Guarujá e expor os resultados obtidos para sete praias monitoradas durante o período de junho de 2022 a junho de 2023, considerando duas regiões: Centro (Astúrias, Pitangueiras, Guaiúba, Tombo) e APA (Iporanga, Taguaíba e São Pedro). Dados pluviométricos e de marés disponíveis foram coletados e analisados para o período delimitado. Foram analisadas 525 amostras de areia e 168 amostras de água. Os resultados das análises de areia e água foram comparados, respectivamente, com os parâmetros da Res. SMAC n.º 468/2010 (imprópria>30.000 UFC/100g) e Res. CONAMA n.º 274/2000 (imprópria>100 UFC/100ml). Foram constatadas diferenças significativas nos níveis de coliformes totais entre as praias e entre as duas regiões monitoradas (Centro e APA). As praias Astúrias e Pitangueiras apresentaram as maiores contagens de coliformes totais, seguidas da praia Guaiúba. Tombo e Iporanga apresentaram o mesmo percentual de amostras impróprias e Taguaíba e São Pedro obtiveram as melhores avaliações. As praias da APA foram melhor avaliadas em relação às praias do Centro. A melhor praia avaliada, São Pedro, apresentou 22 vezes mais chance de apresentar uma amostra própria em relação a Astúrias. Médias superiores de coliformes totais para ambos os grupos foram observadas durante o período que antecede e sucede a temporada de verão (outubro a março), em ambas as regiões. Em geral, 25% das amostras de areia e 37% das amostras de água foram consideradas impróprias, considerando as sete praias avaliadas. Foi constatada uma associação fraca entre areia e água, considerando as sete praias avaliadas, e correlações significativas entre níveis de coliformes totais na areia e médias pluviométricas das 24h e 05 dias anteriores em praias do Centro (Astúrias e Guaiúba). Não foram encontradas correlações entre níveis de maré total máxima e densidade de coliformes totais nas areias.
Between 2022 and 2024, through a partnership between the public sector, a university, and a private entity, Guarujá monitored the sanitary quality of its beach sands, establishing a monitoring methodology to assess contamination levels by total coliforms in the sand and enterococci in the water. In this context, this study aims to describe the methodology for monitoring the quality of beach sands in Guarujá and to present the results obtained for seven beaches monitored during the period from June 2022 to June 2023, considering two regions: Centro (Astúrias, Pitangueiras, Guaiúba, Tombo) and APA (Iporanga, Taguaíba, and São Pedro). Available rainfall and tidal data were collected and analyzed for the defined period. The analysis included 525 sand samples and 168 water samples. The results of sand and water analyses were compared, respectively, with the parameters of Res. SMAC No. 468/2010 (unsuitable>30,000 CFU/100g) and Res. CONAMA No. 274/2000 (unsuitable>100 CFU/100ml). Significant differences in total coliform levels were found between the beaches and between the two monitored regions (Centro and APA). Astúrias and Pitangueiras beaches showed the highest total coliform counts, followed by Guaiúba beach. Tombo and Iporanga exhibited the same percentage of unsuitable samples, while Taguaíba and São Pedro had the best evaluations. The APA beaches were better evaluated compared to the Centro beaches. São Pedro, the best-rated beach, had 22 times more chances of having a suitable sample compared to Astúrias. Higher averages of total coliforms for both groups were observed during the period preceding and succeeding the summer season (October to March) in both regions. Overall, 25% of sand samples and 37% of water samples were considered unsuitable across the seven evaluated beaches. A weak association was found between sand and water considering the seven beaches, and significant correlations were found between total coliform levels in the sand and rainfall averages from the previous 24 hours and 5 days at Centro beaches (Astúrias and Guaiúba). No correlations were found between maximum total tide levels and total coliform density in the sands.
Between 2022 and 2024, through a partnership between the public sector, a university, and a private entity, Guarujá monitored the sanitary quality of its beach sands, establishing a monitoring methodology to assess contamination levels by total coliforms in the sand and enterococci in the water. In this context, this study aims to describe the methodology for monitoring the quality of beach sands in Guarujá and to present the results obtained for seven beaches monitored during the period from June 2022 to June 2023, considering two regions: Centro (Astúrias, Pitangueiras, Guaiúba, Tombo) and APA (Iporanga, Taguaíba, and São Pedro). Available rainfall and tidal data were collected and analyzed for the defined period. The analysis included 525 sand samples and 168 water samples. The results of sand and water analyses were compared, respectively, with the parameters of Res. SMAC No. 468/2010 (unsuitable>30,000 CFU/100g) and Res. CONAMA No. 274/2000 (unsuitable>100 CFU/100ml). Significant differences in total coliform levels were found between the beaches and between the two monitored regions (Centro and APA). Astúrias and Pitangueiras beaches showed the highest total coliform counts, followed by Guaiúba beach. Tombo and Iporanga exhibited the same percentage of unsuitable samples, while Taguaíba and São Pedro had the best evaluations. The APA beaches were better evaluated compared to the Centro beaches. São Pedro, the best-rated beach, had 22 times more chances of having a suitable sample compared to Astúrias. Higher averages of total coliforms for both groups were observed during the period preceding and succeeding the summer season (October to March) in both regions. Overall, 25% of sand samples and 37% of water samples were considered unsuitable across the seven evaluated beaches. A weak association was found between sand and water considering the seven beaches, and significant correlations were found between total coliform levels in the sand and rainfall averages from the previous 24 hours and 5 days at Centro beaches (Astúrias and Guaiúba). No correlations were found between maximum total tide levels and total coliform density in the sands.
Descrição
Citação
PAULO, Mateus Seixas de Melo Frigerio. Monitoramento da qualidade sanitária das areias de praias urbanas do município de Guarujá-SP. 2024. 176 f. Dissertação (Mestrado em Bioprodutos e Bioprocessos) — Instituto de Saúde e Sociedade, Instituto do Mar, Universidade Federal de São Paulo, Santos, 2024.