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1. Application of cellulose nanofiber as a promising air filter for adsorbing particulate matter and carbon dioxide.

Author

Sepahvand S, Ashori A, and Jonoobi M

Subjects
Humans, Particulate Matter analysis, Carbon Dioxide, Cellulose, Air Pollutants, Air Filters, Nanofibers chemistry
Abstract

Pollution from particulate matter (PM) and toxic chemicals in the air cause some of the most critical health and environmental hazards in developed and developing countries. It can have a very destructive effect on human health and other living creatures. In particular, PM air pollution caused by rapid industrialization and population growth is a grave concern in developing countries. Oil and chemical-based synthetic polymers are non-environmentally friendly materials that lead to secondary environmental pollution. Thus, developing new and environmentally compatible renewable materials to construct air filters is essential. The goal of this review is to study the use of cellulose nanofibers (CNF) to adsorb PM in the air. Some of CNF's advantages include being the most abundant polymer in nature, biodegradable, and having a high specific surface area, low density, surface properties (broad possibility of chemical surface modification), high modulus and flexural stiffness, low energy consumption, which provide this new class of bio-based adsorbent with promising potential applications in environmental remediation. Such advantages have made CNF a competitive and highly in-demand material compared to other synthetic nanoparticles. Today, refining membranes and nanofiltration manufacturing are two important industries that could use CNF to provide a practical step in protecting the environment and saving energy. CNF nanofilters are capable of nearly eliminating most sources of air pollution, including carbon monoxide, sulfur oxides, nitrogen oxides, and PM 2.5 - 10 μm. They also have a high porosity and low resistance air (pressure drop) ratio compared to ordinary filters made from cellulose fiber. If utilized correctly, humans do not need to inhale harmful chemicals., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier B.V.)

Published
2023
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2. Analysis and pollution sources speculations of toxic gases in a secondary fiber paper mill.

Author

Tong X, Liu Z, Chen XQ, and Shen WH

Subjects
Formaldehyde analysis, Hydrocarbons analysis, Sulfur Compounds analysis, Volatile Organic Compounds analysis, Waste Management, Wastewater, Air Pollutants analysis, Air Pollution analysis, Environmental Monitoring methods, Industrial Waste analysis, Paper
Abstract

This paper quantitatively investigates the compositions of the gaseous pollutants in the ambient air of a secondary fiber paper mill. Total volatile organic compounds (TVOC), formaldehyde (HCHO), sulfur compounds (H2S), and hydrocarbon compounds (CxHy) were analyzed on six sampling sites with photo-ionisation detector, acetylacetone spectrophotometric method, and gas detector. The results revealed that, the high levels of TVOC and CxHy were detected at the wet end of paper machine and the office area, respectively; all the H2S contents on the six sites exceeded the limit (0.06 mg m(-3)) seriously; the HCHO concentrations at other five sites were out of the limit (0.10 mg m(-3)) except for the wastewater treatment plant. Furthermore, the necessary discussions about the possible pollution sources were considered on the process flow, the chemical agents used, and the ambient conditions in the paper mill. For the sake of air pollution control in paper mills, these remarkable results and analysis lay some technical basis in the following researches that should attract more attentions.

Published
2016
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3. Thermodynamic analysis and kinetic modelling of dioxin formation and emissions from power boilers firing salt-laden hog fuel.

Author

Duo W and Leclerc D

Subjects
Air Pollutants chemistry, Benzofurans analysis, Benzofurans chemistry, Chlorine chemistry, Cities, Dibenzofurans, Polychlorinated, Dioxins chemistry, Gases chemistry, Hydrochloric Acid chemistry, Kinetics, Models, Chemical, Oxygen chemistry, Polychlorinated Dibenzodioxins analogs & derivatives, Polychlorinated Dibenzodioxins analysis, Polychlorinated Dibenzodioxins chemistry, Risk Assessment, Silicates chemistry, Sodium Chloride chemistry, Sulfur chemistry, Sulfur Dioxide chemistry, Thermodynamics, Wood, Air Pollutants analysis, Dioxins analysis, Gases analysis, Incineration, Industrial Waste
Abstract

Both organic chlorine (e.g. PVC) and inorganic chlorides (e.g. NaCl) can be significant chlorine sources for dioxin and furan (PCDD/F) formation in combustion processes. This paper presents a thermodynamic analysis of high temperature salt chemistry. Its influence on PCDD/F formation in power boilers burning salt-laden wood waste is examined through the relationships between Cl2, HCl, NaCl(g) and NaCl(c). These analyses show that while HCl is a product of combustion of PVC-laden municipal solid waste, NaCl can be converted to HCl in hog fuel boilers by reactions with SO2 or alumino-silicate materials. Cl2 is a strong chlorinating agent for PCDD/F formation. HCl can be oxidized to Cl2 by O2, and Cl2 can be reduced back to HCl by SO2. The presence of sulphur at low concentrations thus enhances PCDD/F formation by increasing HCl concentrations. At high concentrations, sulphur inhibits de novo formation of PCDD/Fs through Cl2 reduction by excess SO2. The effect of NH3, CO and NOx on PCDD/F formation is also discussed. A semi-empirical kinetic model is proposed. This model considers both precursor and de novo formation mechanisms. A simplified version is used as a stack emission model. The kinetic model indicates that stack dioxin emissions will increase linearly with decreasing electrostatic precipitator (ESP) efficiency and exponentially with increasing ESP temperature.

Published
2007
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4. The effects of methanol on the biofiltration of dimethyl sulfide in inorganic biofilters.

Author

Zhang Y, Liss SN, and Allen DG

Subjects
Biodegradation, Environmental, Filtration methods, Paper, Volatilization, Wood, Air Pollutants metabolism, Air Pollution prevention & control, Methanol pharmacology, Sewage microbiology, Sulfides metabolism
Abstract

Air emissions from the pulp and paper industry frequently contain reduced sulfur compounds (RSC), such as dimethyl sulfide (DMS) mixed with volatile organic compounds (VOC) (e.g., methanol, MeOH) and it is desirable to treat either one or both of these groups of compounds. The objective of this study was to assess the effects of VOC (MeOH) on the biofiltration of DMS. Results obtained from continuous experiments using three bench-scale biofilters packed with inorganic material clearly show that MeOH has a positive effect (11-fold increase) on the biofiltration of DMS. Further experiments indicate that MeOH addition enhances biomass concentration and viability (threefold) in the biofilters. However, a suspension of MeOH addition causes a rapid significant increase (twofold) in the removal rate of DMS, suggesting that the presence of MeOH also has a competitive effect on DMS biodegradation. This negative effect was also confirmed in batch experiments. The decrease of biofilter performance with time for a long-term suspension of MeOH addition indicates that MeOH addition is necessary to sustain a high removal rate of DMS in inorganic biofilters. Results on metabolic products of DMS biodegradation demonstrate that DMS is almost completely converted to sulfate in the absence of MeOH, while it is partially oxidized to elemental sulfur in the presence of MeOH. This study suggests that there exists an optimum mix of DMS and MeOH for the treatment of DMS emissions in inorganic biofilters., ((c) 2006 Wiley Periodicals, Inc.)

Published
2006
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5. Process-based control of HAPs emissions from drying wood flakes.

Author

Banerjee S, Pendyala K, Buchanan M, Yang R, Abu-Daabes M, and Otwell LP

Subjects
Air Pollutants chemistry, Hazardous Substances, Wood
Abstract

Industrial wood flake drying generates methanol, formaldehyde, and other hazardous air pollutants (HAPs). A simple theoretical model shows that particles smaller than 400 microm will begin to thermally degrade and release disproportionately large quantities of HAPs. This is confirmed in full-scale practice where particles smaller than 500 microm show visible signs of charring. Laboratory measurement of the activation energy for the breakdown of wood tissue into methanol and formaldehyde led to a value of about 17 kcal/mol. The apparent activation energy measured in the field was higher. This result was obtained under nonisothermal conditions and is biased high by the fines fraction of the furnish, which is exposed to elevated temperatures. It is proposed that a combination of screening out the fines fraction smaller than 500 microm and reducing the dryer inlet temperature will substantially reduce emissions, possibly to the point where control devices can be downsized or eliminated. Our findings allow these HAPs reductions to be semiquantitatively estimated.

Published
2006
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6. Gaseous emissions from lignosulfonates in dust abatement applications.

Author

Nelson JB and Northey RA

Subjects
Dust, Environmental Monitoring, Gases, Organic Chemicals, Soil, Transportation, Volatilization, Air Pollutants analysis, Lignin analogs & derivatives, Lignin analysis, Odorants analysis, Sulfur Dioxide analysis
Abstract

Concerns over possible gaseous emissions from lignosulfonate dust suppressant agents used on dirt roads prompted an investigation into the possible release of sulfur dioxide and organic vapors. Emissions from eight commercial lignosulfonates products applied to three different soil types were measured in environmental chambers. It was determined that except under extreme soil pH conditions (<1), the release of sulfur dioxide from the application of lignosulfonates to roads is essentially non existent. The odor associated with the application was found to be due to trace amounts of organic compounds mainly of the furfural variety. Levels of odor compounds in these products was significantly lower than the previously reported values for spent sulfite liquors because the majority were removed during processing operations prior to sale.

Published
2004
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7. Effect of TiO2 surface properties on the SCR activity of NOx emission abatement catalyst.

Author

Ye DQ, Tian LQ, and Liang H

Subjects
Catalysis, Hydrogen-Ion Concentration, Surface Properties, X-Ray Diffraction, Air Pollutants chemistry, Nitrogen Oxides chemistry, Titanium chemistry, Vanadium Compounds chemistry
Abstract

NOx emission abatement catalysts V2O5 supported on various TiO2 including anatase, rutile and mixture of both were investigated with various physico-chemical measurements such as BET, NH3-TPD, NARP, XRD and so on, and the effect of TiO2 surface properties on the SCR (selective catalytic reduction) activity of V2O5/TiO2 catalysts was studied. It was found that the TiO2 surface properties had strong effect on the SCR activity of V2O5/TiO2 catalysts. The stronger acidic property resulted in the higher exposure of active sites as well as the higher SCR activity.

Published
2002

8. Bulky DNA adducts, 4-aminobiphenyl-haemoglobin adducts and diet in the European Prospective Investigation into Cancer and Nutrition (EPIC) prospective study

Author

Carmen Martinez, Petra H.M. Peeters, Merethe Kumle, Paolo Vineis, Armelle Munnia, Seymour Garte, Bas Bueno-de-Mesquita, Emmanuelle Gormally, Ole Raaschou-Nielsen, Antonio Agudo, Giuseppe Matullo, Bengt Järvholm, Françoise Clavel-Chapelon, José Ramón Quirós, Göran Berglund, Marco Peluso, Alison M. Dunning, Rosario Tumino, Alessandro Colombi, Salvatore Panico, Timothy J. Key, Luisa Airoldi, Elio Riboli, S Bingham, Fabrizio Veglia, Rudolf Kaaks, Antonia Trichopoulou, Aurelio Barricarte, Vittorio Krogh, Christian Malaveille, Nicholas E. Day, Kim Overvad, Rodolfo Saracci, Herman Autrup, María José Tormo, Domenico Palli, J. Linseisen, Heiner Boeing, Miren Dorronsoro, Faculteit Medische Wetenschappen/UMCG, Peluso, M, Airoldi, L, Munnia, A, Colombi, A, Veglia, F, Autrup, H, Dunning, A, Garte, S, Gormally, E, Malaveille, C, Matullo, G, Overvad, K, Raaschou Nielsen, O, Clavel Chapelon, F, Linseisen, J, Boeing, H, Trichopoulou, A, Palli, D, Krogh, V, Tumino, R, Panico, Salvatore, Bueno De Mesquita, Bh, Peeters, Ph, Kumle, M, Agudo, A, Martinez, C, Dorronsoro, M, Barricarte, A, Tormo, Mj, Quiros, Jr, Berglund, G, Jarvholm, B, Day, Ne, Key, Tj, Saracci, R, Kaaks, R, Riboli, E, Bingham, S, Vineis, P., [Peluso,M, Munnia, A] Cancer Risk Factor Branch, Analytical and Biomolecular Cytology Unit, CSPO-Scientific Institute of Tuscany, Florence, Italy. [Airoldi,L, Colombi,A] Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. [Veglia, F, Matullo,G] ISI Foundation, Turin, Italy. [Autrup,H] Department of Environmental and Occupational Medicine, Aarhus, Denmark. [Dunning, A] Department of Oncology, University of Cambridge, Cambridge, UK. [Garte,S] Genetics Research Institute, Milan, Italy. [Gormally,E, Malaveille,C] International Agency for Research on Cancer, Lyon, France. [Overhad,K] Department of Clinical Epidemiology, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark. [Raaschou-Nielsen,O] Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark. [Clavel-Chapelon,F] INSERM (Institut National de la Sante´ et de la Recherche Me´dicale), ERI 20, EA 4045, and Institut Gustave Roussy, Villejuif, F-94805, France. [Linseisen,J] Division of Clinical Epidemiology, Deutsches Krebsforschungszentrum, Heidelberg, German. [Boeing,H] German Institute of Human Nutrition, Potsdam-Rehbu¨cke, Germany. [Trichopoulou,A] Department of Hygiene and Epidemiology, Medical School, University of Athens, Athens, Greece. [Palli,D] Molecular and Nutritional Epidemiology Unit, CSPO-Scientific Institute of Cancer Prevention Tuscany Region, Florence, Italy. [Krogh,V] Department of Epidemiology, National Cancer Institute, Milan, Italy. [Tumino,R] Cancer Registry, Azienda Ospedaliera ‘Civile MP Arezzo’, Ragusa, Ital. [Panico,S] Dipartimento di Medicina Clinica e Sperimentale, Universita` Federico II, Naples, Italy. [Bueno-De-Mesquita,BH] Centre for Nutrition and Health, National Institute for Public Health and the Environment, Bilthoven, The Netherland. [Peeters,PH] Julius Center for Health Sciences and Primary Care, University Medical Center, Utrecht, The Netherlands. [Kumle,M] Institute of Community Medicine, University of Tromso, Tromso, Norway. [Agudo,A] Department of Epidemiology, Catalan Institute of Oncology, Barcelona, Spain. [Martinez,C] Andalusian School of Public Health, Granada, Spain. [Dorronsoro,M] Department of Public Health of Guipuzkoa, San Sebastian, Spain. [Barricarte,A] Public Health Institute, Navarra, Spain. [Tormo,MJ] Epidemiology Department, Murcia Health Council, Murcia, Spain. Quiros, JR] Direccio´n General de Salud Pu´blica, Consejerı´a de Salud y Servicios Sanitarios Asturias, Oviedo, Spain. [Berglund,G] Malmo¨ Diet and Cancer Study, Lund University, Malmo¨, Sweden. [Jarvholm,G] Department of Nutritional Research, University of Umea˚, Umea˚ , Sweden. [Day,ND, Bingham,S] MRC Dunn Human Nutrition Unit, Cambridge University, UK. [Key,TJ].Cancer Research UK Epidemiology Unit, University of Oxford, Oxford, UK. [Saracci,R] IFC National Research Council, Pisa, Italy. [Kaas,R] Division of Epidemiology, DKFZ Heidelberg, Germany. [Riboli,E] Imperial College London, London, UK. [Vineis,P] University of Turin, Turin, Italy. Department of Epidemiology and Public Health, Imperial College of Science, Technology and Medicine, Norfolk Place, London W2 1PG, UK, This paper was made possible by a grant of the European Community (5th Framework Programme) to P. V. (grant QLK4–CT–1999–00 927) and a grant of the Compagnia di San Paolo to the ISI Foundation. All authors are independent from funders. Mortality data for the Netherlands were obtained from Statistics Netherlands. Also, the work described in the paper was carried out with the financial support of: Europe Against Cancer Program of the European Commission (SANCO), ISCIII, Red de Centros RCESP, C03/09, Deutsche Krebshilfe, Deutsches Krebsforschungszentrum, German Federal Ministry of Education and Research, Danish Cancer Society, Health Research Fund (FIS) of the Spanish Ministry of Health, Spanish Regional Governments of Andalucia, Asturias, Basque Country, Murcia and Navarra, Cancer Research UK, Medical Research Council, UK, Stroke Association, UK, British Heart Foundation, Department of Health, UK, Food Standards Agency, UK, Wellcome Trust, UK, Greek Ministry of Health, Greek Ministry of Education, Italian Association for Research on Cancer (AIRC), Italian National Research Council, Dutch Ministry of Public Health, Welfare and Sports, World Cancer Research Fund, Swedish Cancer Society, Swedish Scientific Council, Regional Government of Ska°ne, Sweden, Norwegian Cancer Society, and Research Council of Norway.

Subjects
Dietary Fiber, Male, Aflatoxin, Erythrocytes, Chemicals and Drugs::Amino Acids, Peptides, and Proteins::Proteins::Blood Proteins::Hemoglobins [Medical Subject Headings], medicine.medical_treatment, air pollution, RESISTANT STARCH, Medicine (miscellaneous), GUIDELINES, Carcinógenos, Body Mass Index, COLORECTAL-CANCER, Food group, chemistry.chemical_compound, Hemoglobins, Vegetables, Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Environmental Pollutants::Air Pollutants [Medical Subject Headings], Leukocytes, Aductos de ADN, Nutritional Physiological Phenomena, Food science, Prospective Studies, RISK, DNA adducts, Haemoglobin adducts, Non-smokers, Fibre intake, Air pollution, Publication Characteristics::Study Characteristics::Multicenter Study [Medical Subject Headings], Air Pollutants, Nutrition and Dietetics, Chemistry, Technology, Industry, Agriculture::Food and Beverages::Food::Dietary Fiber [Medical Subject Headings], Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Noxae::Carcinogens [Medical Subject Headings], COLON-CANCER, Phenomena and Processes::Genetic Phenomena::Genetic Processes::DNA Damage::DNA Adducts [Medical Subject Headings], Fabaceae, Middle Aged, fibre intake, European Prospective Investigation into Cancer and Nutrition, Europe, Biochemistry, 4-Aminobiphenyl, Colonic Neoplasms, Hemoglobinas, Female, SMOKERS, Alcohol Drinking, BLADDER-CANCER, European Prospective Investigation into Cancer and Nutrition (EPIC), haemoglobin adducts, non-smokers, RATS, POLYCYCLIC AROMATIC-HYDROCARBONS, Ozone, LUNG-CANCER, DNA adduct, medicine, Humans, Contaminantes del aire, ddc:610, Carcinogen, Aged, Estudio multicéntrico, Vitamin E, Fruit, Multivariate Analysis, Fibras en la dieta, Carcinogens, Biomarkers, Food contaminant
Abstract

Udgivelsesdato: 2008-Feb-14 In contrast to some extensively examined food mutagens, for example, aflatoxins, N-nitrosamines and heterocyclic amines, some other food contaminants, in particular polycyclic aromatic hydrocarbons (PAH) and other aromatic compounds, have received less attention. Therefore, exploring the relationships between dietary habits and the levels of biomarkers related to exposure to aromatic compounds is highly relevant. We have investigated in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort the association between dietary items (food groups and nutrients) and aromatic DNA adducts and 4-aminobiphenyl-Hb adducts. Both types of adducts are biomarkers of carcinogen exposure and possibly of cancer risk, and were measured, respectively, in leucocytes and erythrocytes of 1086 (DNA adducts) and 190 (Hb adducts) non-smokers. An inverse, statistically significant, association has been found between DNA adduct levels and dietary fibre intake (P = 0.02), vitamin E (P = 0.04) and alcohol (P = 0.03) but not with other nutrients or food groups. Also, an inverse association between fibre and fruit intake, and BMI and 4-aminobiphenyl-Hb adducts (P = 0.03, 0.04, and 0.03 respectively) was observed. After multivariate regression analysis these inverse correlations remained statistically significant, except for the correlation adducts v. fruit intake. The present study suggests that fibre intake in the usual range can modify the level of DNA or Hb aromatic adducts, but such role seems to be quantitatively modest. Fibres could reduce the formation of DNA adducts in different manners, by diluting potential food mutagens and carcinogens in the gastrointestinal tract, by speeding their transit through the colon and by binding carcinogenic substances.

Published
2008

9. Urban environment and cognitive and motor function in children from four European birth cohorts

Author

Marina Vafeiadi, Raquel Soler-Blasco, Mariza Kampouri, Mònica Guxens, Martine Vrijheid, Johanna Lepeule, Llúcia González-Safont, Mark J. Nieuwenhuijsen, Mark Mon-Williams, John Wright, Rosie McEachan, Anne-Claire Binter, Claire Philippat, Jonathan Y. Bernard, Jordi Sunyer, Loreto Santa-Marina, Leda Chatzi, Lucia Alonso, Ainara Andiarena, Institut de recherche en santé, environnement et travail (Irset), Université d'Angers (UA)-Université de Rennes (UR)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Instituto de Salud Global - Institute For Global Health [Barcelona] (ISGlobal), Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Agency for science, technology and research [Singapore] (A*STAR), University of South-Eastern Norway (USN), University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU), CIBER de Epidemiología y Salud Pública (CIBERESP), Universitat Jaume I, University of Crete [Heraklion] (UOC), Institute for Advanced Biosciences / Institut pour l'Avancée des Biosciences (Grenoble) (IAB), Centre Hospitalier Universitaire [Grenoble] (CHU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang - Auvergne-Rhône-Alpes (EFS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Fundación para el Fomento de la Investigación Sanitaria y Biomédica de la Comunitat Valenciana [Espagne] (FISABIO), University of Bradford, University of Southern California (USC), Universitat Pompeu Fabra [Barcelona] (UPF), Erasmus University Medical Center [Rotterdam] (Erasmus MC), This work was supported by funding from the European Community’s Seventh Framework Programme [FP7/2007–206 n◦308333, the HELIX project]. This INMA cohort was funded by grants from Instituto de Salud Carlos III (Red INMA G03/176, CB06/02/0041, PI041436, PI081151 incl. FEDER funds, FIS PI06/0867, FIS-PI09/00090, FIS and FIS-PI18/01142 incl. FEDER funds, FIS-FEDER: PI03/1615, PI04/1509, PI04/1112, PI04/1931, PI05/1079, PI05/1052, PI06/1213, PI07/0314, PI09/02647, PI11/01007, PI11/02591, PI11/02038, PI13/1944, PI13/2032, PI14/00891, PI14/01687, PI16/1288, PI16/00118 and PI17/00663, FIS-FSE: 17/00260, Miguel Servet-FEDER CP11/00178, CP15/00025, CPII16/00051, and CPII18/00018), from UE (FP7-ENV-2011 cod 282957, HEALTH.2010.2.4.5-1, and H2020 n◦824989), Generalitat de Catalunya-CIRIT 1999SGR 00241, Fundació La marató de TV3 (090430), Generalitat Valenciana: FISABIO (UGP 15-230, UGP-15-244, and UGP-15-249), Alicia Koplowitz Foundation 2017, CIBERESP, Department of Health of the Basque Government (2013111089, 2009111069, 2013111089, 2015111065 and 2018111086), Provincial Government of Gipuzkoa (DFG06/002, DFG08/001, DFG15/221 and DFG 89/17) and annual agreements with the municipalities of the study area (Zumarraga, Urretxu , Legazpi, Azkoitia y Azpeitia y Beasain). We acknowledge support from the Spanish Ministry of Science and Innovation and the State Research Agency through the 'Centro de Excelencia Severo Ochoa 2019-2023' Program (CEX2018-000806-S), and support from the Generalitat de Catalunya through the CERCA Program. The work was also supported by MICINN [MTM2015-68140- R] and Centro Nacional de Genotipado- CEGEN- PRB2- ISCIII (Spain). The Rhea project was financially supported by European projects, and the Greek Ministry of Health (Program of Prevention of obesity and neurodevelopmental disorders in preschool children, in Heraklion district, Crete, Greece: 2011–2014, 'Rhea Plus': Primary Prevention Program of Environmental Risk Factors for Reproductive Health, and Child Health: 2012–15). This paper presents independent research funded by the National Institute for Health Research (NIHR) under its Collaboration for Applied Health Research and Care (CLAHRC) for Yorkshire and Humber (UK). The EDEN study was supported by Foundation for medical research (FRM), National Agency for Research (ANR), National Institute for Research in Public health (IRESP: TGIR cohorte santé 2008 program), French Ministry of Health (DGS), French Ministry of Research, INSERM Bone and Joint Diseases National Research (PRO-A), and Human Nutrition National Research Programs, Paris-Sud University, Nestlé, French National Institute for Population Health Surveillance (InVS), French National Institute for Health Education (INPES), the European Union FP7 programs (ESCAPE, ENRIECO, Medall projects), Diabetes National Research Program (through a collaboration with the French Association of Diabetic Patients (AFD)), French Agency for Environmental Health Safety and French National Agency for Food Security (now ANSES), Mutuelle Générale de l’Education Nationale a complementary health insurance (MGEN), French-speaking association for the study of diabetes and metabolism (ALFEDIAM). Core support for Born in Bradford is also provided by the Wellcome Trust (WT101597MA, UK). Born in Bradford (BiB) is only possible because of the enthusiasm and commitment of the children and parents in BiB. We are grateful to all the participants, health professionals, schools and researchers who have made BiB happen. BiB receives funding from the ESRC/MRC, the Wellcome Trust (WT101597MA) and the National Institute for Health Research Yorkshire and Humber ARC (reference: NIHR20016). M. Mon-Williams was supported by a Fellowship from the Alan Turing Institute. Additional funding from the National Institute of Environmental Health Science supported Dr Chatzi (R01ES030691, R01ES029944, R01ES030364, R21ES029681, and P30ES007048). The views expressed are those of the authors, and not necessarily those of the NHS or the NIHR. None of the funders were involved in designing the study, collecting the data, analyzing or interpreting the data, deciding to submit the article for publication, or the writing of the report., HESAM Université (HESAM)-HESAM Université (HESAM)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPC)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Singapore Institute for Clinical Sciences [Singapour] (SICS), Bradford Institute for Health Research [Bradford, UK], Bradford Teaching Hospitals NHS Foundation Trust [Bradford, UK] (BTHFT), University of Leeds, Universitat de València (UV), Karolinska Institutet [Stockholm], Binter, Anne-Claire, Child and Adolescent Psychiatry / Psychology, Erasmus MC other, European Commission, Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de la Santé et de la Recherche Médicale (INSERM)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université d'Angers (UA)

Subjects
Urban environment, 010501 environmental sciences, 01 natural sciences, 0302 clinical medicine, Cognition, Pregnancy, Cognició en els infants, 11. Sustainability, GE1-350, 030212 general & internal medicine, Children, Motor skill, ComputingMilieux_MISCELLANEOUS, Desenvolupament urbà, General Environmental Science, SDG 15 - Life on Land, 2. Zero hunger, education.field_of_study, Air Pollutants, 4. Education, motor function, Cohort, cohort, SDG 11 - Sustainable Cities and Communities, 3. Good health, Child, Preschool, Birth Cohort, Female, Cognitive function, Psychology, Population, Gross motor skill, 03 medical and health sciences, children, Urban planning, Air Pollution, medicine, Humans, education, Motor function, cognitive function, 0105 earth and related environmental sciences, Environmental Exposure, medicine.disease, urban environment, Confidence interval, Environmental sciences, Spain, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Particulate Matter, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Demography
Abstract

[EN]Background: The urban environment may influence neurodevelopment from conception onwards, but there is no evaluation of the impact of multiple groups of exposures simultaneously. We investigated the association between early-life urban environment and cognitive and motor function in children. Methods: We used data from 5403 mother-child pairs from four population-based birth-cohorts (UK, France, Spain, and Greece). We estimated thirteen urban home exposures during pregnancy and childhood, including: built environment, natural spaces, and air pollution. Verbal, non-verbal, gross motor, and fine motor functions were assessed using validated tests at five years old. We ran adjusted multi-exposure models using the Deletion-Substitution-Addition algorithm. Results: Higher greenness exposure within 300 m during pregnancy was associated with higher verbal abilities (1.5 points (95% confidence interval 0.4, 2.7) per 0.20 unit increase in greenness). Higher connectivity density within 100 m and land use diversity during pregnancy were related to lower verbal abilities. Childhood exposure to PM2.5 mediated 74% of the association between greenness during childhood and verbal abilities. Higher exposure to PM2.5 during pregnancy was related to lower fine motor function (-1.2 points (-2.1, -0.4) per 3.2 mu g/m3 increase in PM2.5). No associations were found with non-verbal abilities and gross motor function. Discussion: This study suggests that built environment, greenness, and air pollution may impact child cognitive and motor function at five years old. This study adds evidence that well-designed urban planning may benefit children's cognitive and motor development. Acknowledgements We are grateful to all the participating children, parents, practi-tioners and researchers in the four countries who took part in this study. This work was supported by funding from the European Community's Seventh Framework Programme [FP7/2007-206 n 308333; the HELIX project] . This INMA cohort was funded by grants from Instituto de Salud Carlos III (Red INMA G03/176; CB06/02/0041; PI041436; PI081151 incl. FEDER funds, FIS PI06/0867, FIS-PI09/00090, FIS and FIS-PI18/01142 incl. FEDER funds, FIS-FEDER: PI03/1615, PI04/1509, PI04/1112, PI04/1931, PI05/1079, PI05/1052, PI06/1213, PI07/0314, PI09/02647, PI11/01007, PI11/02591, PI11/02038, PI13/1944, PI13/2032, PI14/00891, PI14/01687, PI16/1288, PI16/00118 and PI17/00663; FIS-FSE: 17/00260; Miguel Servet-FEDER CP11/00178, CP15/00025, CPII16/00051, and CPII18/00018) , from UE (FP7-ENV-2011 cod 282957, HEALTH.2010.2.4.5-1, and H2020 n 824989) , Generalitat de Catalunya-CIRIT 1999SGR 00241, Fundacio La marato de TV3 (090430) , Generalitat Valenciana: FISABIO (UGP 15-230, UGP-15-244, and UGP-15-249) , Alicia Koplowitz Foundation 2017, CIBERESP, Department of Health of the Basque Government (2013111089, 2009111069, 2013111089, 2015111065 and 2018111086) , Provincial Government of Gipuzkoa (DFG06/002, DFG08/001, DFG15/221 and DFG 89/17) and annual agreements with the municipalities of the study area (Zumarraga, Urretxu , Legazpi, Azkoitia y Azpeitia y Beasain) . We acknowledge support from the Spanish Ministry of Science and Inno-vation and the State Research Agency through the "Centro de Excelencia Severo Ochoa 2019-2023" Program (CEX2018-000806-S) , and support from the Generalitat de Catalunya through the CERCA Program. The work was also supported by MICINN [MTM2015-68140-R] and Centro Nacional de Genotipado-CEGEN-PRB2-ISCIII (Spain) . The Rhea project was financially supported by European projects, and the Greek Ministry of Health (Program of Prevention of obesity and neurodevelopmental disorders in preschool children, in Heraklion district, Crete, Greece: 2011-2014; "Rhea Plus": Primary Prevention Program of Environmental Risk Factors for Reproductive Health, and Child Health: 2012-15) . This paper presents independent research funded by the National Institute for Health Research (NIHR) under its Collaboration for Applied Health Research and Care (CLAHRC) for Yorkshire and Humber (UK) . The EDEN study was supported by Foundation for medical research (FRM) , National Agency for Research (ANR) , National Institute for Research inPublic health (IRESP: TGIR cohorte sante 2008 program) , French Min-istry of Health (DGS) , French Ministry of Research, INSERM Bone and Joint Diseases National Research (PRO-A) , and Human Nutrition Na-tional Research Programs, Paris-Sud University, Nestle, French National Institute for Population Health Surveillance (InVS) , French National Institute for Health Education (INPES) , the European Union FP7 pro-grams (ESCAPE, ENRIECO, Medall projects) , Diabetes National Research Program (through a collaboration with the French Association of Diabetic Patients (AFD) ) , French Agency for Environmental Health Safety and French National Agency for Food Security (now ANSES) , Mutuelle Generale de l'Education Nationale a complementary health insurance (MGEN) , French-speaking association for the study of diabetes and metabolism (ALFEDIAM) . Core support for Born in Bradford is also provided by the Wellcome Trust (WT101597MA, UK) . Born in Bradford (BiB) is only possible because of the enthusiasm and commitment of the children and parents in BiB. We are grateful to all the participants, health professionals, schools and researchers who have made BiB happen. BiB receives funding from the ESRC/MRC, the Wellcome Trust (WT101597MA) and the National Institute for Health Research York-shire and Humber ARC (reference: NIHR20016) . M. Mon-Williams was supported by a Fellowship from the Alan Turing Institute. Additional funding from the National Institute of Environmental Health Science supported Dr Chatzi (R01ES030691, R01ES029944, R01ES030364, R21ES029681, and P30ES007048) . The views expressed are those of the authors, and not necessarily those of the NHS or the NIHR. None of the funders were involved in designing the study, collecting the data, analyzing or interpreting the data, deciding to submit the article for publication, or the writing of the report. Data sharing statement The HELIX data warehouse has been established as an accessible resource for collaborative research involving researchers external to the project. Access to HELIX data is based on approval by the HELIX Project Executive Committee and by the individual cohorts. Further details on the content of the data warehouse (data catalogue) and procedures for external access are described on the project website (http:// www.proj-ecthelix.eu/index.php/es/data-inventory) .

Published
2022