Percorrer por autor "Guedes, Joana"
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- Efeitos na saúde associados à exposição ocupacional à radiação ultravioleta solar: Uma revisão sistemática da literaturaPublication . Rocha, Ricardo; Guedes, Joana; Santos, Joana; Carvalhais, Carlos; Alberto Alves Carvalhais, Carlos; Santos, JoanaA exposição ocupacional à radiação ultravioleta solar (UVR) é um dos principais riscos para os trabalhadores ao ar livre, associada a cancro, lesões oculares e envelhecimento precoce da pele. Embora seja crucial na síntese de vitamina D, a exposição excessiva é reconhecida como carcinogénico do Grupo 1 pela Organização Mundial da Saúde. A caracterização dos efeitos desta exposição, em diferentes contextos profissionais, é essencial para a adoção de medidas de proteção eficazes. Identificar os efeitos na saúde relacionados com a exposição ocupacional à UVR, descrevendo os grupos profissionais mais afetados, as medidas de proteção adotadas e as limitações metodológicas reportadas nos estudos. Foi realizada uma revisão sistemática segundo a metodologia PRISMA 2020. A pesquisa foi efetuada nas bases de dados Scopus, Web of Science e PubMed, com término a 19 de novembro de 2024. Foram incluídos estudos originais em humanos, publicados entre 2019 e 2024, em inglês e revistos por pares, que abordassem os efeitos da exposição ocupacional à UVR. O risco de viés foi avaliado através da checklist do Joanna Briggs Institute (JBI).Foram incluídos 16 estudos, abrangendo trabalhadores de vários setores profissionais, tais como agricultura, construção, pesca, docência, forças armadas e trabalho offshore. Os efeitos negativos mais identificados foram carcinoma basocelular e espinocelular, melanoma maligno, cataratas, fotoenvelhecimento, queratose actínica e lesões labiais. Em contrapartida, níveis moderados de exposição foram associados a uma redução do risco de cancro do cólon e da próstata. A utilização de medidas de proteção revelou-se inconsistente, com baixa adesão no uso de protetor solar e chapéus. As principais limitações metodológicas incluíram heterogeneidade dos desenhos de estudo, ausência de dados sobre exposição não ocupacional e falta de padronização na medição da dose cumulativa de UVR. A exposição ocupacional à UVR representa um risco significativo e persistente para a saúde dos trabalhadores ao ar livre, mas também pode conferir alguns efeitos protetores quando moderada. Estes resultados reforçam a necessidade de políticas públicas robustas, programas de vigilância ocupacional e uma maior uniformização dos métodos de avaliação. Estudos quantitativos de longo prazo são fundamentais para sustentar estratégias de prevenção eficazes e adaptadas aos diferentes contextos profissionais.
- New methodologies and techniques for biomonitoring pesticide exposure in agricultural workers: A systematic reviewPublication . Moreira, Andreia; Guedes, Joana; Silva, Manuela Vieira da; Vieira da Silva, ManuelaBiomonitoring allows for the assessment of internal exposure to various pesticides and metabolites. Following PRISMA guidelines, this systematic review aims to summarise innovative biomonitoring techniques for assessing pesticide exposure in agricultural workers, their advantages and limitations, and their applicability. The search of the Medline/PubMed, ScienceDirect, Scopus, and Web of Science databases identified 14 articles dealing with new techniques for biomonitoring pesticide exposure in agricultural workers. These new methodologies have identified several biomarkers associated with exposure to organophosphates. Most of the included studies combine and/or improve traditional methods to overcome their limitations. This leads to more sensitive, specific, and precise techniques with lower detection and quantification limits. Therefore, it is necessary to thoroughly analyse and test new biomonitoring methods for assessing pesticide exposure. These techniques can complement qualitative risk assessments and aid in developing strategies to protect public health and the environment.
- Novo laboratório de investigação em Saúde Ocupacional: caracterização de câmara climática Walk-InPublication . Alberto Alves Carvalhais, Carlos; Santos, Joana; Guedes, Joana; Santos Baptista, JoãoPoster apresentado no 8th International Symposium on Occupational Safety and Hygiene (SHO) 2012.
- Occupational chemical exposure and health status of wildland firefighters at the firefront: A systematic reviewPublication . Teixeira, Tatiana; Almeida, Liliana; Dias, Isabel; Baptista, João Santos; Santos, Joana; Vaz, Mário; Guedes, JoanaWildland firefighting represents a physically and mentally demanding endeavour fraught with various risk factors. The primary aim of this study is to delineate occupational chemical exposure within the firefighting work environment on the firefront and its implications for firefighters’ health status. A systematic literature review was conducted utilising diverse keyword combinations across Scopus, Web of Science, Academic Search Complete, and ScienceDirect databases. Only English-language journal articles, real-world monitoring reports, and studies featuring samples of firefighters were considered for inclusion. Forty-one studies were analysed, with 26 focusing on firefighters’ occupational exposure to chemical agents during wildland firefighting and 15 addressing the health impairments of wildland firefighting activities. Polycyclic aromatic hydrocarbons (PAHs), VOCs, and particulates emerged as the most prevalent chemical agents in the exposure profiles of frontline firefighters. They were shown to be the main incidents of cardiovascular disease, respiratory disease, and work-related cancer. The rigorous demands of wildland firefighting have been demonstrated to significantly impact firefighter health, resulting in a notable prevalence of fatalities and illnesses. Given that an elevated number of health issues are common in this occupation, adopting advanced assessment technologies is imperative.
- Occupational exposure to solar ultraviolet radiation: A systematic review of protective measuresPublication . Rocha, Ricardo; Santos, Joana; Baptista, João Santos; Guedes, Joana; Carvalhais, Carlos; Alberto Alves Carvalhais, Carlos; Santos, JoanaSolar ultraviolet radiation (UVR) is classified as a Group 1 carcinogen and poses a significant occupational hazard to outdoor workers. Despite preventive guidelines, adherence to protective measures remains inconsistent. This systematic review identified the protective measures adopted by healthy outdoor workers and assessed their adherence to and the effectiveness of these measures. Following the PRISMA 2020 statement, the review searched Scopus, Web of Science, and PubMed for peer-reviewed studies published between 2015 and 2025. Eligible studies included at least 100 healthy participants and evaluated preventive or protective measures against solar UVR. Independent reviewers extracted data and assessed risk of bias using the McMaster Critical Review Form. From 17,756 records, 51 studies met the inclusion criteria after screening and a subsequent snowballing process. The identified protective strategies clustered into physical, behavioural, and organisational categories. Adherence ranged from low to moderate, with structured interventions and employer support improving compliance. Sunscreen use remained low due to perceived inconvenience and lack of provision. Overall, the evidence revealed substantial variability in implementation and effectiveness across occupations. Strengthened regulations and integrated interventions combining education, personal protective equipment, and organisational measures are essential. Future research should prioritise longitudinal designs and objective indicators such as biomarkers and dosimetry.
- A systematic review of the health effects of occupational exposure to ultraviolet radiationPublication . Rocha, Ricardo; Guedes, Joana; Santos, Joana; Carvalhais, Carlos; Alberto Alves Carvalhais, Carlos; Santos, JoanaOutdoor workers face significant health risks from prolonged exposure to solar ultraviolet radiation (UVR), which can lead to serious conditions such as skin cancer and cataracts, while also offering some potential benefits like reduced risks of certain cancers. This systematic review synthesizes findings from 16 studies, revealing a clear association between occupational solar UVR exposure and adverse health effects, underscoring the urgent need for improved sun protection policies and further research to enhance risk assessment and prevention strategies.