Pas d'enregistrements
Renata Tavares
2020
Reproduction@Estarreja: is female reproductive potential at risk?
Toxicology
Industrial Contamination
Heavy Metals
Female (In)Fertility
Female Reproductive Potential
Exposure to toxicants generated from (or used in) industrial processes has contributed towards the decrease of female fertility and reproductive potential worldwide. Considering the increased risk of exposure in the modern world due to industrial growth, it is crucial the assessment of the reproductive potential of women living in an industrial-related area, particularly if there is already a history of local contamination.
The city of Estarreja presents the second largest chemical complex in Portugal and contamination of heavy metals was earlier reported. After efforts to counteract this issue, the fertility and reproductive potential of women from Estarreja is still lacking. Importantly, heavy metal measurements in women folicular fluid will be performed and using an in vitro animal model system developed in our lab we will further unveil if female reproductive potential is affected. Oocyte maturation and both oocyte and cumulus cells viability will be evaluated as well as indicators of oxidative stress. Finally, other parameters of oocyte quality such as ooplasmic volume, spindle configuration and chromossomal alignment will be analyzed.
Further lectures addressing environmental pollution and its implications on female, and general human fertility will be given to infants and teenagers at schools of the municipality.
Renata Tavares
2019
Men’s Health Estarreja – Evaluation of the reproductive health of men living in a heavily industrialized area
INDUSTRIAL EXPOSURE
HEAVY METALS
SPERM QUALITY AND FUNCTION
MALE (IN)FERTILITY
MALE REPRODUCTIVE HEALTH
PUBLIC HEALTH
Exposure to toxicants originated from (or used in) industrial processes has shown to contribute towards the global decrease of male fertility and reproductive health status. Considering that the risk of exposure in the modern world is increasing due to industrial growth, it became imperative to assess the sperm quality and function and overall reproductive health status of populations living in an industrial-related area, particularly if there is already a history of local contamination.
To this extent, the city of Estarreja encloses the second largest chemical complex in Portugal and contamination of heavy metals has been reported. The present pilot study, therefore, intends to use a representative sample of Estarreja’s adult population and unveil the male reproductive phenotype signature induced by these toxicants. Importantly, parameters of sperm quality as concentration, motility and morphology will be evaluated along with more accurate functional indicators of sperm fertilizing ability such as mitochondrial function, chromatin/DNA integrity, acrosome status and viability, often disregarded in this type of studies. Furthermore, the function of accessory sex organs will be determined in seminal plasma given their importance in seminal fluid production and sperm maturation. A representative sample of adult men from the Center region of Portugal will be used as control group.
Nuno Durães
2018
SOILRICE - Geochemical and ecological soil quality status in cultivated and abandoned rice paddies
Rice paddies
Soil quality status
Agrochemicals
Heavy metals
Salinity
Ecotoxicological essays
Diatoms
Estarreja is a region of marked contrasts, where an almost unique ecological reservoir, the Baixo Vouga Lagunar (BVL), contrasts with one of the most important chemical industry of the country. Fortunately, these contrasts between nature and man’s hand are not always so marked. Integrated in this ecological reserve, man modelled the land and used the surface water reservoirs to develop there an agricultural practice dedicated to rice cultivation, and perfectly harmonized with the surrounding landscape – the “Bocage landscape”.
However, rice cultivation in the region of BVL (the only place in the north of Portugal where rice is cultivated) has been abandoned in the last decades. The reasons for this abandon are several, however the main one is the low paid prices for the produced rice and the unproductivity of the soils caused by saline water intrusion.
Since now some funds are being provided to encourage rice production in this region, it is important to study the actual quality status of the soil (geochemical and ecological status) in the rice paddies under cultivation and in the abandoned ones. This study is crucial not only to assess and understand the potential of this area to support this agricultural practice (in the present and in the future), but also to estimate the possible environmental impacts that may arise from rice cultivation in a protected ecological landscape like this one.
Anabela Pereira
2016
Impact of phytoremediation processes on bacterial communities from Pb and Cd contaminated soils: a greenhouse experiment
heavy metals
phytoremediation
bacterial communities
Human activities such as industry and agriculture have resulted in the high contamination of soil and water with heavy metals. This type of contamination induces harmful effects on environmental and human health. In the last years, research on phytoremediation has highlighted the scientific and economic benefits of plants and their associated microorganisms used for the reclamation of polluted soil and water. Also, the potential of microorganisms to enhance phytoremediation processes and the exact mechanism by which bacteria could enhance heavy metal accumulation in plants has been received some attention. Despite the great interest in improving the efficiency of metal hyperaccumulating plants, their influence on microbial community’s remains poorly elucidated, constituting a less explored aspect in phytoremediation processes.
The aim of this study is to investigate the impact of the plant hyperaccumulator (Thlaspi spp.) on the diversity and structure of soil bacterial communities during phytoextraction processes. The present study aimed to assess the impact of the Thlaspy spp. on the bacterial communities along phytoremediation process in Cd and Pb-contaminated soil from Estarreja region.
Results will contribute to establish efficient strategies of risk assessment and phytorremediation in Estarreja.
Carla Candeias
2015
Wireless sensors network as a base solution for environmental water quality assessment and monitoring
water monitoring
heavy metals
wireless sensors
Given the rising environmental awareness scientist from all over the world highlight that water quality is essential for a healthy development of aquatic ecosystems and humans. The analysis of the human‐environment interaction process and their evolution are among the OHM main goals. Therefore, the permanent monitoring of heavy metals released into natural water bodies by industrial wastewater discharges in water, surrounding the OHM sites, has become essential.
This project aims to improve the water quality control by a real time wireless monitoring of the metals inputs (Hg, Cr and Cd) into the water body. A smart sensor wireless network system will be developed and used to monitor and predict the risk of water contamination by such hazardous substances, which have very harmful effects on human health and environment, including loss of biodiversity of aquatic ecosystems, even at extremely low concentrations, due to their high toxicity. The Estarreja Municipality lagoon, an important source of irrigation waters for the region, will be monitored and the results will allow the understanding of the Estarreja Chemical Industrial Complex influence on the surrounding ecosystems.