Tim S Nawrot
Biographic Data
| ID | 4426753 |
|---|---|
| NAME | Tim S Nawrot |
| GIVEN NAMES | Tim S |
| FAMILY NAME | Nawrot |
| SIGNATURE | NAWROT T S |
| AFFILIATIONS | Hasselt University |
| ORCID | 0000-0002-3583-3593 |
| VERIFIED | Yes |
| TOTAL WORKS | 28 |
| TOTAL CITATIONS | 17 |
| AUTHOR COUNT | 28 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2006 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Environmental, biological and cognitive monitoring of children in European primary schools
Poor indoor air quality (IAQ) in schools is of particular concern as it can negatively impact children’s cognitive development, health, and well-being. Measuring IAQ-related parameters, assessing children’s internal and external exposures, and developing solutions for reducing exposure are therefore critical to protecting children’s health. The use of air purifiers can be a good mitigation strategy to improve IAQ in classrooms, but their associat…
Infant buccal telomere length
Introduction Telomere length is considered a marker of biological aging, and is shown to be susceptible to exposures during gestational and early life, including maternal psychological distress, and to be connected with temperament. Here, we examine the influence of maternal psychosocial and work-related factors on infant telomere length, and how infant telomere length is associated with infant and preschooler temperament. Methods 147 mothers and…
The impact of greening interventions in school grounds on social behavior and cognitive performance among primary school children
Background: Green spaces have been identified as beneficial for children's mental health, as well as cognitive performance, however, less is known about the role of biodiversity within these environments. Here, we study the impact of greening schoolyards, especially with regard to biodiversity enrichment, on children's behavior, emotion recognition, cognitive performance and mental effort, and attentional bias, compared to observations in control…
The Role of the Telomere Length in the Relationship Between Mercury Exposure and Cardiometabolic Risk Factors
Telomere Length and Emotional and Behavioral Problems in Children from the Prospective Birth Cohort INfancia y Medio Ambiente (Inma) Study
Background/Objectives : This study aimed to examine the association between leukocyte telomere length (TL) measured at ages 4 and 8 and emotional and behavioral problems at age 8. We also explored whether changes in leukocyte TL between ages 4 and 8 were associated with outcomes. Methods : Data were obtained from a population-based birth cohort and included 647 children with TL at age 4 and emotional and behavioral assessments at age 8, 673 with …
Air pollution exposure and incidence of cardiometabolic diseases
While the antioxidative potential of certain vitamins and minerals in cardio-protection has garnered increasing interest, their ability to attenuate associations between air pollution exposure and cardiometabolic diseases (CMDs) remains unexplored. This study examined the associations of air pollution (particulate matter including ultrafine particles (UFP), and nitrogen oxides, including NO2 and NOx) and six dietary antioxidants with incident non…
Socioeconomic inequalities and ambient air pollution exposure in school-aged children living in an affluent society
Low neighborhood income was significantly associated with higher levels of air pollution, while parental education level was not significantly associated. Children from parents with a low education and low income were exposed to the highest levels of air pollution
Black carbon particles in human breast milk
Background/Aim Human breast milk is the recommended source of nutrition for infants due to its complex composition and numerous benefits, including a decline in infection rates in childhood and a lower risk of obesity. Hence, it is crucial that environmental pollutants in human breast milk are minimized. Exposure to black carbon (BC) particles has adverse effects on health; therefore, this pilot study investigates the presence of these particles …
Air pollutants and ovarian reserve
Sedentary Behaviour and Telomere Length Shortening during Early Childhood
Sedentary behaviour (SB) may be related to telomere length (TL) attrition due to a possible pro-inflammatory effect. This study examined the association between parent-reported sedentary behaviour (SB) and leukocyte TL at the age of 4 and telomere tracking from 4 to 8 years. In the Spanish birth cohort Infancia y Medio Ambiente (INMA) project, we analysed data from children who attended follow-up visits at age 4 (n = 669) and 8 (n = 530). Multipl…
Mapping abundance distributions of allergenic tree species in urbanized landscapes
Assessment of the Feasibility of a Future Integrated Larger-Scale Epidemiological Study to Evaluate Health Risks of Air Pollution Episodes in Children
Air pollution exposure can lead to exacerbation of respiratory disorders in children. Using sensitive biomarkers helps to assess the impact of air pollution on children's respiratory health and combining protein, genetic and epigenetic biomarkers gives insights on their interrelatedness. Most studies do not contain such an integrated approach and investigate these biomarkers individually in blood, although its collection in children is challengin…
Determinants of Chronic Biological Stress, Measured as Hair Cortisol Concentration, in a General Population of Adolescents
Chronic biological stress may adversely affect adolescents' physical and mental health, but insight in the personal and environmental factors that determine chronic stress is limited. We measured 3-month cumulative hair cortisol concentration (HCC) in 419 adolescents, participating in the Flemish Environment and Health Study. Adolescents' health and lifestyle characteristics, household and neighborhood socio-economic status as well as neighborhoo…
Tree pollen allergy risks and changes across scenarios in urban green spaces in Brussels, Belgium
Residential green space types, allergy symptoms and mental health in a cohort of tree pollen allergy patients
Association between urban environment and mental health in Brussels, Belgium
These findings have important implications because most of the Brussel's population resides in areas where particulate matters concentrations are above the World Health Organization guidelines. This suggests that policies aiming to reduce traffic related-air pollution could also reduce the burden of depressive disorders in Brussels
An evaluation of species distribution models to estimate tree diversity at genus level in a heterogeneous urban-rural landscape
Respiratory Health and Urinary Trace Metals among Artisanal Stone-Crushers
Stone-crushers were more heavily exposed to mineral dust and various trace elements than taxi-drivers, and they had a fourfold increased risk of reporting wheezing, but they did not have evidence of more respiratory impairment than taxi-drivers
Personal NO2 and Volatile Organic Compounds Exposure Levels are Associated with Markers of Cardiovascular Risk in Women in the Cape Town Region of South Africa
Exposure to ambient NO 2 and benzene, toluene ethyl-benzene and m+p- and o-xylenes (BTEX) is associated with adverse cardiovascular effects, but limited information is available on the effects of personal exposure to these compounds in South African populations. This 6-month follow-up study aims to determine 7-day personal ambient NO 2 and BTEX exposure levels via compact passive diffusion samplers in female participants from Cape Town, and inves…
Household Air Pollution Is Associated with Chronic Cough but Not Hemoptysis after Completion of Pulmonary Tuberculosis Treatment in Adults, Rural Eastern Democratic Republic of Congo
Little is known about the respiratory health damage related to household air pollution (HAP) in survivors of pulmonary tuberculosis (PTB). In a population-based cross-sectional study, we determined the prevalence and associated predictors of chronic cough and hemoptysis in 441 randomly selected PTB survivors living in 13 remote health zones with high TB burden in the South Kivu province of the Democratic Republic of Congo (DRC). Trained community…
ExposOmics
The final meeting of the EXPOsOMICS project "Final Policy Workshop and Stakeholder Consultation" took place 28-29 March 2017 to present the main results of the project and discuss their implications both for future research and for regulatory and policy activities. This paper summarizes presentations and discussions at the meeting related with the main results and advances in exposome research achieved through the EXPOsOMICS project; on other par…
Sustainability of artisanal mining of cobalt in DR Congo
Combined Effects of Prenatal Exposures to Environmental Chemicals on Birth Weight
Prenatal chemical exposure has been frequently associated with reduced fetal growth by single pollutant regression models although inconsistent results have been obtained. Our study estimated the effects of exposure to single pollutants and mixtures on birth weight in 248 mother-child pairs. Arsenic, copper, lead, manganese and thallium were measured in cord blood, cadmium in maternal blood, methylmercury in maternal hair, and five organochlorine…
Ambient temperature as a trigger of preterm delivery in a temperate climate
BACKGROUND: Recent evidence suggests that elevated ambient temperatures may trigger preterm delivery. Since results from studies in temperate climates are inconclusive, we investigated the association between temperature and the risk of preterm birth in Flanders (Belgium). METHODS: We used data on 807 835 singleton deliveries (January 1998-July 2011). We combined a quasi-Poisson model with distributed lag non-linear models to allow for delayed an…
Host and environmental predictors of exhaled breath temperature in the elderly
Exhaled breath temperature has been suggested as a noninvasive method for the evaluation of airway inflammation. We provide evidence that several factors known to be involved in proinflammatory conditions including BMI, physical activity and residential proximity to traffic affect exhaled breath temperature. In addition, we identified potential confounders that should be taken into account in clinical and epidemiological studies on exhaled breath…
Sustainability of artisanal mining of cobalt in DR Congo
Stronger associations between daily mortality and fine particulate air pollution in summer than in winter
Background: Numerous studies have shown a strong association between daily mortality and small particulate with a diameter of 10 ) air pollution, but the effects of season have not always been well characterised. Aim: To study the shape of the association between short-term mortality and PM 10 across seasons and quintiles of outdoor temperature. Design, setting and participants: Daily data on mortality (n = 354 357), outdoor temperature and PM 10…
Where do the elderly die? The impact of nursing home utilisation on the place of death. Observations from a mortality cohort study in Flanders
Demographic, but especially social-contextual factors determine where elderly will end their life. The majority of elderly in Flanders die in an institution. Age, gender and living situation are predictors of the place of death but the embedment of a nursing home in the local community seems to be a key predictor
Stronger associations between daily mortality and fine particulate air pollution in summer than in winter
Background: Numerous studies have shown a strong association between daily mortality and small particulate with a diameter of 10 ) air pollution, but the effects of season have not always been well characterised. Aim: To study the shape of the association between short-term mortality and PM 10 across seasons and quintiles of outdoor temperature. Design, setting and participants: Daily data on mortality (n = 354 357), outdoor temperature and PM 10…
Blood pressure and particulate air pollution in schoolchildren of Lahore, Pakistan
In 8-12 year-old children, exposure to (traffic-related) air pollution was associated with higher systolic and diastolic blood pressure. These findings, if they persist, might have clinical relevance at older age
Host and environmental predictors of exhaled breath temperature in the elderly
Exhaled breath temperature has been suggested as a noninvasive method for the evaluation of airway inflammation. We provide evidence that several factors known to be involved in proinflammatory conditions including BMI, physical activity and residential proximity to traffic affect exhaled breath temperature. In addition, we identified potential confounders that should be taken into account in clinical and epidemiological studies on exhaled breath…
Combined Effects of Prenatal Exposures to Environmental Chemicals on Birth Weight
Prenatal chemical exposure has been frequently associated with reduced fetal growth by single pollutant regression models although inconsistent results have been obtained. Our study estimated the effects of exposure to single pollutants and mixtures on birth weight in 248 mother-child pairs. Arsenic, copper, lead, manganese and thallium were measured in cord blood, cadmium in maternal blood, methylmercury in maternal hair, and five organochlorine…
Ambient temperature as a trigger of preterm delivery in a temperate climate
BACKGROUND: Recent evidence suggests that elevated ambient temperatures may trigger preterm delivery. Since results from studies in temperate climates are inconclusive, we investigated the association between temperature and the risk of preterm birth in Flanders (Belgium). METHODS: We used data on 807 835 singleton deliveries (January 1998-July 2011). We combined a quasi-Poisson model with distributed lag non-linear models to allow for delayed an…
Household Air Pollution Is Associated with Chronic Cough but Not Hemoptysis after Completion of Pulmonary Tuberculosis Treatment in Adults, Rural Eastern Democratic Republic of Congo
Little is known about the respiratory health damage related to household air pollution (HAP) in survivors of pulmonary tuberculosis (PTB). In a population-based cross-sectional study, we determined the prevalence and associated predictors of chronic cough and hemoptysis in 441 randomly selected PTB survivors living in 13 remote health zones with high TB burden in the South Kivu province of the Democratic Republic of Congo (DRC). Trained community…
ExposOmics
The final meeting of the EXPOsOMICS project "Final Policy Workshop and Stakeholder Consultation" took place 28-29 March 2017 to present the main results of the project and discuss their implications both for future research and for regulatory and policy activities. This paper summarizes presentations and discussions at the meeting related with the main results and advances in exposome research achieved through the EXPOsOMICS project; on other par…
Sustainability of artisanal mining of cobalt in DR Congo
Personal NO2 and Volatile Organic Compounds Exposure Levels are Associated with Markers of Cardiovascular Risk in Women in the Cape Town Region of South Africa
Exposure to ambient NO 2 and benzene, toluene ethyl-benzene and m+p- and o-xylenes (BTEX) is associated with adverse cardiovascular effects, but limited information is available on the effects of personal exposure to these compounds in South African populations. This 6-month follow-up study aims to determine 7-day personal ambient NO 2 and BTEX exposure levels via compact passive diffusion samplers in female participants from Cape Town, and inves…
An evaluation of species distribution models to estimate tree diversity at genus level in a heterogeneous urban-rural landscape
Respiratory Health and Urinary Trace Metals among Artisanal Stone-Crushers
Stone-crushers were more heavily exposed to mineral dust and various trace elements than taxi-drivers, and they had a fourfold increased risk of reporting wheezing, but they did not have evidence of more respiratory impairment than taxi-drivers
Determinants of Chronic Biological Stress, Measured as Hair Cortisol Concentration, in a General Population of Adolescents
Chronic biological stress may adversely affect adolescents' physical and mental health, but insight in the personal and environmental factors that determine chronic stress is limited. We measured 3-month cumulative hair cortisol concentration (HCC) in 419 adolescents, participating in the Flemish Environment and Health Study. Adolescents' health and lifestyle characteristics, household and neighborhood socio-economic status as well as neighborhoo…
Tree pollen allergy risks and changes across scenarios in urban green spaces in Brussels, Belgium
Residential green space types, allergy symptoms and mental health in a cohort of tree pollen allergy patients
Association between urban environment and mental health in Brussels, Belgium
These findings have important implications because most of the Brussel's population resides in areas where particulate matters concentrations are above the World Health Organization guidelines. This suggests that policies aiming to reduce traffic related-air pollution could also reduce the burden of depressive disorders in Brussels
Mapping abundance distributions of allergenic tree species in urbanized landscapes
Assessment of the Feasibility of a Future Integrated Larger-Scale Epidemiological Study to Evaluate Health Risks of Air Pollution Episodes in Children
Air pollution exposure can lead to exacerbation of respiratory disorders in children. Using sensitive biomarkers helps to assess the impact of air pollution on children's respiratory health and combining protein, genetic and epigenetic biomarkers gives insights on their interrelatedness. Most studies do not contain such an integrated approach and investigate these biomarkers individually in blood, although its collection in children is challengin…
Sedentary Behaviour and Telomere Length Shortening during Early Childhood
Sedentary behaviour (SB) may be related to telomere length (TL) attrition due to a possible pro-inflammatory effect. This study examined the association between parent-reported sedentary behaviour (SB) and leukocyte TL at the age of 4 and telomere tracking from 4 to 8 years. In the Spanish birth cohort Infancia y Medio Ambiente (INMA) project, we analysed data from children who attended follow-up visits at age 4 (n = 669) and 8 (n = 530). Multipl…
Black carbon particles in human breast milk
Background/Aim Human breast milk is the recommended source of nutrition for infants due to its complex composition and numerous benefits, including a decline in infection rates in childhood and a lower risk of obesity. Hence, it is crucial that environmental pollutants in human breast milk are minimized. Exposure to black carbon (BC) particles has adverse effects on health; therefore, this pilot study investigates the presence of these particles …
Air pollutants and ovarian reserve
Infant buccal telomere length
Introduction Telomere length is considered a marker of biological aging, and is shown to be susceptible to exposures during gestational and early life, including maternal psychological distress, and to be connected with temperament. Here, we examine the influence of maternal psychosocial and work-related factors on infant telomere length, and how infant telomere length is associated with infant and preschooler temperament. Methods 147 mothers and…
The impact of greening interventions in school grounds on social behavior and cognitive performance among primary school children
Background: Green spaces have been identified as beneficial for children's mental health, as well as cognitive performance, however, less is known about the role of biodiversity within these environments. Here, we study the impact of greening schoolyards, especially with regard to biodiversity enrichment, on children's behavior, emotion recognition, cognitive performance and mental effort, and attentional bias, compared to observations in control…
The Role of the Telomere Length in the Relationship Between Mercury Exposure and Cardiometabolic Risk Factors
Telomere Length and Emotional and Behavioral Problems in Children from the Prospective Birth Cohort INfancia y Medio Ambiente (Inma) Study
Background/Objectives : This study aimed to examine the association between leukocyte telomere length (TL) measured at ages 4 and 8 and emotional and behavioral problems at age 8. We also explored whether changes in leukocyte TL between ages 4 and 8 were associated with outcomes. Methods : Data were obtained from a population-based birth cohort and included 647 children with TL at age 4 and emotional and behavioral assessments at age 8, 673 with …
Medicine (18 works) · Biology (14 works) · Air Quality and Health Impacts (13 works) · Environmental health (13 works) · Ecology (9 works) · Internal Medicine (9 works) · Geography (8 works) · Climate Change and Health Impacts (7 works) · Demography (7 works) · Air pollution (6 works)