The Experts below are selected from a list of 155973 Experts worldwide ranked by ideXlab platform
Alain Stintzi - One of the best experts on this subject based on the ideXlab platform.
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nitrifying moving bed biofilm reactor mbbr biofilm and biomass response to Long Term Exposure to 1 c
Water Research, 2014Co-Authors: V Hoang, Robert Delatolla, Turki Abujamel, Walid Mottawea, Alain Gadbois, Edith Laflamme, Alain StintziAbstract:Abstract This study aims to investigate moving bed biofilm reactor (MBBR) nitrification rates, nitrifying biofilm morphology, biomass viability as well as bacterial community shifts during Long-Term Exposure to 1 °C. Long-Term Exposure to 1 °C is the key operational condition for potential ammonia removal upgrade units to numerous northern region treatment systems. The average laboratory MBBR ammonia removal rate after Long-Term Exposure to 1 °C was measured to be 18 ± 5.1% as compared to the average removal rate at 20 °C. Biofilm morphology and specifically the thickness aLong with biomass viability at various depths in the biofilm were investigated using variable pressure electron scanning microscope (VPSEM) imaging and confocal laser scanning microscope (CLSM) imaging in combination with viability live/dead staining. The biofilm thickness aLong with the number of viable cells showed significant increases after Long-Term Exposure to 1 °C. Hence, this study observed nitrifying bacteria with higher activities at warm temperatures and a slightly greater quantity of nitrifying bacteria with lower activities at cold temperatures in nitrifying MBBR biofilms. Using DNA sequencing analysis, Nitrosomonas and Nitrosospira (ammonia oxidizers) as well as Nitrospira (nitrite oxidizer) were identified and no population shift was observed between 20 °C and after Long-Term Exposure to 1 °C.
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nitrifying moving bed biofilm reactor mbbr biofilm and biomass response to Long Term Exposure to 1 c
Water Research, 2014Co-Authors: V Hoang, Robert Delatolla, Turki Abujamel, Walid Mottawea, Alain Gadbois, Edith Laflamme, Alain StintziAbstract:This study aims to investigate moving bed biofilm reactor (MBBR) nitrification rates, nitrifying biofilm morphology, biomass viability as well as bacterial community shifts during Long-Term Exposure to 1 °C. Long-Term Exposure to 1 °C is the key operational condition for potential ammonia removal upgrade units to numerous northern region treatment systems. The average laboratory MBBR ammonia removal rate after Long-Term Exposure to 1 °C was measured to be 18 ± 5.1% as compared to the average removal rate at 20 °C. Biofilm morphology and specifically the thickness aLong with biomass viability at various depths in the biofilm were investigated using variable pressure electron scanning microscope (VPSEM) imaging and confocal laser scanning microscope (CLSM) imaging in combination with viability live/dead staining. The biofilm thickness aLong with the number of viable cells showed significant increases after Long-Term Exposure to 1 °C. Hence, this study observed nitrifying bacteria with higher activities at warm temperatures and a slightly greater quantity of nitrifying bacteria with lower activities at cold temperatures in nitrifying MBBR biofilms. Using DNA sequencing analysis, Nitrosomonas and Nitrosospira (ammonia oxidizers) as well as Nitrospira (nitrite oxidizer) were identified and no population shift was observed between 20 °C and after Long-Term Exposure to 1 °C.
Inmaculada Aguilera - One of the best experts on this subject based on the ideXlab platform.
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high blood pressure and Long Term Exposure to indoor noise and air pollution from road traffic
Environmental Health Perspectives, 2014Co-Authors: Maria Foraster, Inmaculada Aguilera, Nino Kunzli, Marcela Rivera, David Agis, Joan Vila, Laura Bouso, Alexandre Deltell, Jaume Marrugat, Rafel RamosAbstract:Traffic noise has been associated with prevalence of hypertension, but reports are inconsistent for blood pressure (BP). To ascertain noise effects and to disentangle them from those suspected to be from traffic-related air pollution, it may be essential to estimate people's noise Exposure indoors in bedrooms.; We analyzed associations between Long-Term Exposure to indoor traffic noise in bedrooms and prevalent hypertension and systolic (SBP) and diastolic (DBP) BP, considering Long-Term Exposure to outdoor nitrogen dioxide (NO2).; We evaluated 1,926 cohort participants at baseline (years 2003-2006; Girona, Spain). Outdoor annual average levels of nighttime traffic noise (Lnight) and NO2 were estimated at postal addresses with a detailed traffic noise model and a land-use regression model, respectively. Individual indoor traffic Lnight levels were derived from outdoor Lnight with application of insulations provided by reported noise-reducing factors. We assessed associations for hypertension and BP with multi-Exposure logistic and linear regression models, respectively.; Median levels were 27.1 dB(A) (indoor Lnight), 56.7 dB(A) (outdoor Lnight), and 26.8 μg/m3 (NO2). Spearman correlations between outdoor and indoor Lnight with NO2 were 0.75 and 0.23, respectively. Indoor Lnight was associated both with hypertension (OR = 1.06; 95% CI: 0.99, 1.13) and SBP (β = 0.72; 95% CI: 0.29, 1.15) per 5 dB(A); and NO2 was associated with hypertension (OR = 1.16; 95% CI: 0.99, 1.36), SBP (β = 1.23; 95% CI: 0.21, 2.25), and DBP (β⊇= 0.56; 95% CI: -0.03, 1.14) per 10 μg/m3. In the outdoor noise model, Lnight was associated only with hypertension and NO2 with BP only. The indoor noise-SBP association was stronger and statistically significant with a threshold at 30 dB(A).; Long-Term Exposure to indoor traffic noise was associated with prevalent hypertension and SBP, independently of NO2. Associations were less consistent for outdoor traffic Lnight and likely affected by collinearity.
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association of Long Term Exposure to traffic related air pollution with blood pressure and hypertension in an adult population based cohort in spain the regicor study
Environmental Health Perspectives, 2014Co-Authors: Maria Foraster, Inmaculada Aguilera, Marcela Rivera, David Agis, Laura Bouso, Alexandre Deltell, Jaume Marrugat, Rafel Ramos, Xavier Basagana, Jordi SunyerAbstract:Background: Long-Term Exposure to traffic-related air pollution may increase blood pressure (BP) and induce hypertension. However, evidence supporting these associations is limited, and they may be...
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apheis health impact assessment of Long Term Exposure to pm 2 5 in 23 european cities
European Journal of Epidemiology, 2006Co-Authors: Elena Boldo, Sylvia Medina, Alain Le Tertre, Fintan Hurley, Hansguido Mucke, Ferran Ballester, Inmaculada AguileraAbstract:Introduction: Apheis aims to provide European decision makers, environmental-health professionals and the general public with up-to-date and easy-to-use information on air pollution (AP) and public health (PH). In the Apheis-3 phase we quantified the PH impact of Long-Term Exposure to PM2.5 (particulate matter <2.5 lm) in Terms of attributable number of deaths and the potential gain in life expectancy in 23 European cities. Methods: We followed the World Health Organization (WHO) methodology for Health Impact Assessment (HIA) and the Apheis guidelines for data collection and analysis. We used the programme created by PSAS-9 for attributable-cases calculations and the WHO software AirQ to estimate the potential gain in life expectancy. For most cities, PM2.5 levels were calcu- lated from PM10 measurements using a local or European conversion factor. Results: The HIA esti- mated that 16,926 premature deaths from all causes, including 11,612 cardiopulmonary deaths and 1901 lung-cancer deaths, could be prevented annually if Long-Term Exposure to PM2.5 levels were reduced to 15 lg/m 3 in each city. Equivalently, this reduction would increase life expectancy at age 30 by a range between one month and more than two years in the Apheis cities. Conclusions: In addition to the number of attributable cases, our HIA has estimated the po- tential gain in life expectancy for Long-Term Exposure to fine particles, contributing to a better quantifica- tion of the impact of AP on PH in Europe.
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apheis health impact assessment of Long Term Exposure to pm 2 5 in 23 european cities
European Journal of Epidemiology, 2006Co-Authors: Elena Boldo, Sylvia Medina, Alain Le Tertre, Fintan Hurley, Hansguido Mucke, Ferran Ballester, Inmaculada AguileraAbstract:Introduction Apheis aims to provide European decision makers, environmental-health professionals and the general public with up-to-date and easy-to-use information on air pollution (AP) and public health (PH). In the Apheis-3 phase we quantified the PH impact of Long-Term Exposure to PM2.5 (particulate matter < 2.5 μm) in Terms of attributable number of deaths and the potential gain in life expectancy in 23 European cities.
Zorana Jovanovic Andersen - One of the best experts on this subject based on the ideXlab platform.
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Long Term Exposure to fine particle elemental components and natural and cause specific mortality a pooled analysis of eight european cohorts within the elapse project
Environmental Health Perspectives, 2021Co-Authors: Jie Chen, Zorana Jovanovic Andersen, Tom Bellander, Richard Atkinson, Kees De Hoogh, Sophia Rodopoulou, Maciej Strak, Mariska Bauwelinck, Jorgen BrandtAbstract:Background: Inconsistent associations between Long-Term Exposure to particles with an aerodynamic diameter ≤2.5 μm [fine particulate matter (PM2.5)] components and mortality have been reported, par...
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Long Term Exposure to ambient air pollution and incidence of cerebrovascular events results from 11 european cohorts within the escape project
Environmental Health Perspectives, 2014Co-Authors: Massimo Stafoggia, Josef Cyrys, Zorana Jovanovic Andersen, Giulia Cesaroni, Chiara Badaloni, Annette Peters, Rob Beelen, Barbara Caracciolo, Ulf De Faire, Kees De HooghAbstract:Background: Few studies have investigated effects of air pollution on the incidence of cerebrovascular events.Objectives: We assessed the association between Long-Term Exposure to multiple air poll...
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Long Term Exposure to ambient air pollution and incidence of acute coronary events prospective cohort study and meta analysis in 11 european cohorts from the escape project
BMJ, 2014Co-Authors: Giulia Cesaroni, Massimo Stafoggia, Zorana Jovanovic Andersen, Chiara Badaloni, Francesco Forastiere, Rob Beelen, Barbara Caracciolo, Ulf De Faire, Raimund ErbelAbstract:Objectives To study the effect of Long Term Exposure to airborne pollutants on the incidence of acute coronary events in 11 cohorts participating in the European Study of Cohorts for Air Pollution ...
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stroke and Long Term Exposure to outdoor air pollution from nitrogen dioxide a cohort study
Stroke, 2012Co-Authors: Zorana Jovanovic Andersen, Luise Cederkvist Kristiansen, Klaus Kaae Andersen, T S Olsen, Martin Hvidberg, Steen Solvang Jensen, Matthias Ketzel, Steffen Loft, Mette Sorensen, Anne TjonnelandAbstract:Background and Purpose—Years of Exposure to tobacco smoke substantially increase the risk for stroke. Whether Long-Term Exposure to outdoor air pollution can lead to stroke is not yet established. We examined the association between Long-Term Exposure to traffic-related air pollution and incident and fatal stroke in a prospective cohort study. Methods—We followed 57 053 participants of the Danish Diet, Cancer and Health cohort in the Hospital Discharge Register for the first-ever hospital admission for stroke (incident stroke) between baseline (1993–1997) and 2006 and defined fatal strokes as death within 30 days of admission. We associated the estimated mean levels of nitrogen dioxide at residential addresses since 1971 to incident and fatal stroke by Cox regression analyses and examined the effects by stroke subtypes: ischemic, hemorrhagic, and nonspecified stroke. Results—Over a mean follow-up of 9.8 years of 52 215 eligible subjects, there were 1984 (3.8%) first-ever (incident) hospital admissions for...
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diabetes incidence and Long Term Exposure to air pollution a cohort study
Diabetes Care, 2012Co-Authors: Zorana Jovanovic Andersen, Martin Hvidberg, Steen Solvang Jensen, Matthias Ketzel, Steffen Loft, Anne Tjonneland, Ole Raaschounielsen, Kim Overvad, Mette SorensenAbstract:OBJECTIVE Animal and cross-sectional epidemiological studies suggest a link between air pollution and diabetes, whereas the limited prospective data show mixed results. We studied the association between Long-Term Exposure to traffic-related air pollution and incidence of diabetes. RESEARCH DESIGN AND METHODS We followed 57,053 participants of the Danish Diet, Cancer, and Health cohort in the Danish National Diabetes Register between baseline (1993–1997) and 27 June 2006. We estimated the mean levels of nitrogen dioxide (NO2) at the residential addresses of the cohort participants since 1971 and modeled the association between NO2 and diabetes incidence with a Cox regression model, separately for two definitions of diabetes: all cases and a more strict definition where unconfirmed cases were excluded. RESULTS Over a mean follow-up of 9.7 years of 51,818 eligible subjects, there were 4,040 (7.8%) incident diabetes cases in total and 2,877 (5.5%) with confirmed diagnoses. Air pollution was not associated with all diabetes cases (hazard ratio 1.00 [95% CI 0.97–1.04] per interquartile range of 4.9 μg/m3 mean NO2 levels since 1971), but a borderline statistically significant association was detected with confirmed cases of diabetes (1.04 [1.00–1.08]). Among confirmed diabetes cases, effects were significantly enhanced in nonsmokers (1.12 [1.05–1.20]) and physically active people (1.10 [1.03–1.16]). CONCLUSIONS Long-Term Exposure to traffic-related air pollution may contribute to the development of diabetes, especially in individuals with a healthy lifestyle, nonsmokers, and physically active individuals.
V Hoang - One of the best experts on this subject based on the ideXlab platform.
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nitrifying moving bed biofilm reactor mbbr biofilm and biomass response to Long Term Exposure to 1 c
Water Research, 2014Co-Authors: V Hoang, Robert Delatolla, Turki Abujamel, Walid Mottawea, Alain Gadbois, Edith Laflamme, Alain StintziAbstract:Abstract This study aims to investigate moving bed biofilm reactor (MBBR) nitrification rates, nitrifying biofilm morphology, biomass viability as well as bacterial community shifts during Long-Term Exposure to 1 °C. Long-Term Exposure to 1 °C is the key operational condition for potential ammonia removal upgrade units to numerous northern region treatment systems. The average laboratory MBBR ammonia removal rate after Long-Term Exposure to 1 °C was measured to be 18 ± 5.1% as compared to the average removal rate at 20 °C. Biofilm morphology and specifically the thickness aLong with biomass viability at various depths in the biofilm were investigated using variable pressure electron scanning microscope (VPSEM) imaging and confocal laser scanning microscope (CLSM) imaging in combination with viability live/dead staining. The biofilm thickness aLong with the number of viable cells showed significant increases after Long-Term Exposure to 1 °C. Hence, this study observed nitrifying bacteria with higher activities at warm temperatures and a slightly greater quantity of nitrifying bacteria with lower activities at cold temperatures in nitrifying MBBR biofilms. Using DNA sequencing analysis, Nitrosomonas and Nitrosospira (ammonia oxidizers) as well as Nitrospira (nitrite oxidizer) were identified and no population shift was observed between 20 °C and after Long-Term Exposure to 1 °C.
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nitrifying moving bed biofilm reactor mbbr biofilm and biomass response to Long Term Exposure to 1 c
Water Research, 2014Co-Authors: V Hoang, Robert Delatolla, Turki Abujamel, Walid Mottawea, Alain Gadbois, Edith Laflamme, Alain StintziAbstract:This study aims to investigate moving bed biofilm reactor (MBBR) nitrification rates, nitrifying biofilm morphology, biomass viability as well as bacterial community shifts during Long-Term Exposure to 1 °C. Long-Term Exposure to 1 °C is the key operational condition for potential ammonia removal upgrade units to numerous northern region treatment systems. The average laboratory MBBR ammonia removal rate after Long-Term Exposure to 1 °C was measured to be 18 ± 5.1% as compared to the average removal rate at 20 °C. Biofilm morphology and specifically the thickness aLong with biomass viability at various depths in the biofilm were investigated using variable pressure electron scanning microscope (VPSEM) imaging and confocal laser scanning microscope (CLSM) imaging in combination with viability live/dead staining. The biofilm thickness aLong with the number of viable cells showed significant increases after Long-Term Exposure to 1 °C. Hence, this study observed nitrifying bacteria with higher activities at warm temperatures and a slightly greater quantity of nitrifying bacteria with lower activities at cold temperatures in nitrifying MBBR biofilms. Using DNA sequencing analysis, Nitrosomonas and Nitrosospira (ammonia oxidizers) as well as Nitrospira (nitrite oxidizer) were identified and no population shift was observed between 20 °C and after Long-Term Exposure to 1 °C.
Leslie Bernstein - One of the best experts on this subject based on the ideXlab platform.
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Long Term Exposure to air pollution and cardiorespiratory disease in the california teachers study cohort
American Journal of Respiratory and Critical Care Medicine, 2011Co-Authors: Michael Lipsett, Michael Jerrett, Bart Ostro, Peggy Reynolds, Debbie Goldberg, Andrew Hertz, Daniel Smith, Cynthia Garcia, Ellen T Chang, Leslie BernsteinAbstract:Rationale: Several studies have linked Long-Term Exposure to particulate air pollution with increased cardiopulmonary mortality; only two have also examined incident circulatory disease. Objectives: To examine associations of individualized Long-Term Exposures to particulate and gaseous air pollution with incident myocardial infarction and stroke, as well as all-cause and causespecific mortality. Methods: We estimated Long-Term residential air pollution Exposure for more than 100,000 participants in the California Teachers Study, aprospectivecohortoffemalepublicschoolprofessionals.Welinked geocoded residential addresses with inverse distance-weighted monthly pollutant surfaces for two measures of particulate matter and for several gaseous pollutants. We examined associations between Exposure to these pollutants and risks of incident myocardial infarction and stroke, and of all-cause and cause-specific mortality, using Cox proportional hazards models. MeasurementsandMainResults:Wefoundelevatedhazardratioslinking Long-Term Exposure to particulate matter less than 2.5 m mi n aerodynamic diameter (PM2.5), scaled to an increment of 10 mg/m 3 with mortality from ischemic heart disease (IHD) (1.20; 95% confidence interval [CI], 1.02‐1.41) and, particularly among postmenopausal women, incident stroke (1.19; 95% CI, 1.02‐1.38). Long-Term Exposure to particulate matter less than 10m mi n aerodynamic diameter(PM10)wasassociatedwithelevatedrisksforIHDmortality(1.06; 95% CI, 0.99‐1.14) and incident stroke (1.06; 95% CI, 1.00‐1.13), while Exposure to nitrogen oxides was associated with elevated risks for IHD and all cardiovascular mortality. Conclusions: This study provides evidence linking Long-Term Exposure to PM2.5 and PM10 with increased risks of incident stroke as wellasIHDmortality;Exposuretonitrogenoxideswasalsorelatedto
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Long Term Exposure to constituents of fine particulate air pollution and mortality results from the california teachers study
Environmental Health Perspectives, 2009Co-Authors: Bart Ostro, Michael Lipsett, Peggy Reynolds, Debbie Goldberg, Andrew Hertz, Cynthia Garcia, Katherine D Henderson, Leslie BernsteinAbstract:BackgroundSeveral studies have reported associations between Long-Term Exposure to ambient fine particulate matter (PM) and cardiovascular mortality. However, the health impacts of Long-Term exposu...
