Wijnand Eduard

Summary

Affiliation: National Institute of Occupational Health
Country: Norway

Publications

  1. doi request reprint Chronic bronchitis, COPD, and lung function in farmers: the role of biological agents
    Wijnand Eduard
    National Institute of Occupational Health, Chemical and Biological Working Environment, Dep Oslo NO 0033, Norway
    Chest 136:716-25. 2009
  2. doi request reprint Bioaerosol exposure assessment in the workplace: the past, present and recent advances
    Wijnand Eduard
    National Institute of Occupational Health, PO Box 8149, Oslo, Norway
    J Environ Monit 14:334-9. 2012
  3. doi request reprint Generation and homogeneity of aerosols in a human whole-body inhalation chamber
    W Eduard
    National Institute of Occupational Health, Department of Chemical and Biological Work Environment, PO Box 8149 Dep, NO 0033 Oslo, Norway
    Ann Occup Hyg 52:545-54. 2008
  4. pmc Do farming exposures cause or prevent asthma? Results from a study of adult Norwegian farmers
    W Eduard
    National Institute of Occupational Health, Oslo, Norway
    Thorax 59:381-6. 2004
  5. ncbi request reprint The performance of culture-based methods and microscopy for quantification of noninfectious airborne microorganisms in epidemiological studies of highly contaminated work environments
    Wijnand Eduard
    National Institute of Occupational Health, P O Box 8149 Dep, 0033 Oslo, Norway
    AIHA J (Fairfax, Va) 64:684-9. 2003
  6. ncbi request reprint Recognition errors in the quantification of micro-organisms by fluorescence microscopy
    W Eduard
    National Institute of Occupational Health, P O Box 8149 Dep, 0033, Oslo, Norway
    Ann Occup Hyg 45:493-8. 2001
  7. ncbi request reprint Organic dust-related respiratory and eye irritation in Norwegian farmers
    E Melbostad
    National Institute of Occupational Health, Oslo, Norway
    Am J Ind Med 39:209-17. 2001
  8. pmc Short term exposure to airborne microbial agents during farm work: exposure-response relations with eye and respiratory symptoms
    W Eduard
    National Institute of Occupational Health, PO Box 8149 Dep, 0033 Oslo, Norway
    Occup Environ Med 58:113-8. 2001
  9. ncbi request reprint Real-time PCR detection of toxigenic Fusarium in airborne and settled grain dust and associations with trichothecene mycotoxins
    Anne Straumfors Halstensen
    National Institute of Occupational Health, Dept of Chemical and Biological Working Environment, N 0033 Oslo, Norway
    J Environ Monit 8:1235-41. 2006
  10. doi request reprint A novel strategy for retrospective exposure assessment in the Norwegian silicon carbide industry
    Solveig Føreland
    National Institute of Occupational Health, Oslo, Norway
    J Occup Environ Hyg 9:230-41. 2012

Detail Information

Publications43

  1. doi request reprint Chronic bronchitis, COPD, and lung function in farmers: the role of biological agents
    Wijnand Eduard
    National Institute of Occupational Health, Chemical and Biological Working Environment, Dep Oslo NO 0033, Norway
    Chest 136:716-25. 2009
    ..Farmers have an increased risk of respiratory morbidity and mortality. The causal agents have not been fully established...
  2. doi request reprint Bioaerosol exposure assessment in the workplace: the past, present and recent advances
    Wijnand Eduard
    National Institute of Occupational Health, PO Box 8149, Oslo, Norway
    J Environ Monit 14:334-9. 2012
    ..Although exposure assessment of bioaerosol agents is complex and limited by the availability of methods and criteria, the field is rapidly evolving...
  3. doi request reprint Generation and homogeneity of aerosols in a human whole-body inhalation chamber
    W Eduard
    National Institute of Occupational Health, Department of Chemical and Biological Work Environment, PO Box 8149 Dep, NO 0033 Oslo, Norway
    Ann Occup Hyg 52:545-54. 2008
    ..Several modifications of the aerosol generation and distribution system were needed to ensure a stable aerosol concentration in the chamber, especially when a cyclone pre-classifier was used...
  4. pmc Do farming exposures cause or prevent asthma? Results from a study of adult Norwegian farmers
    W Eduard
    National Institute of Occupational Health, Oslo, Norway
    Thorax 59:381-6. 2004
    ..Studies of adult farmers have shown conflicting results but often lack exposure data. The prevalence of asthma in farmers with different exposure levels to microbial agents and irritant gases was compared...
  5. ncbi request reprint The performance of culture-based methods and microscopy for quantification of noninfectious airborne microorganisms in epidemiological studies of highly contaminated work environments
    Wijnand Eduard
    National Institute of Occupational Health, P O Box 8149 Dep, 0033 Oslo, Norway
    AIHA J (Fairfax, Va) 64:684-9. 2003
    ..The complex composition of bioaerosols in many work environments necessitate the assessment of exposure to multiple agents and multivariate statistical analysis of exposure-response associations...
  6. ncbi request reprint Recognition errors in the quantification of micro-organisms by fluorescence microscopy
    W Eduard
    National Institute of Occupational Health, P O Box 8149 Dep, 0033, Oslo, Norway
    Ann Occup Hyg 45:493-8. 2001
    ..An interlaboratory comparison of fluorescence microscopic counting of micro-organisms was carried out to assess counting errors in the measurement of micro-organisms in bioaerosols generated during handling of municipal waste...
  7. ncbi request reprint Organic dust-related respiratory and eye irritation in Norwegian farmers
    E Melbostad
    National Institute of Occupational Health, Oslo, Norway
    Am J Ind Med 39:209-17. 2001
    ..Information on exposure to organic dust and work-related symptoms in farmers is sparse...
  8. pmc Short term exposure to airborne microbial agents during farm work: exposure-response relations with eye and respiratory symptoms
    W Eduard
    National Institute of Occupational Health, PO Box 8149 Dep, 0033 Oslo, Norway
    Occup Environ Med 58:113-8. 2001
    ..Various methods not based on microbial cultures were explored to study the complex microbial exposure of farmers and associations with acute symptoms during work...
  9. ncbi request reprint Real-time PCR detection of toxigenic Fusarium in airborne and settled grain dust and associations with trichothecene mycotoxins
    Anne Straumfors Halstensen
    National Institute of Occupational Health, Dept of Chemical and Biological Working Environment, N 0033 Oslo, Norway
    J Environ Monit 8:1235-41. 2006
    ..This study is the first to apply real-time PCR on personal samples of inhalable grain dust for the quantification of tri5 and species-specific Fusarium-DNA, which may have potential for risk assessments of inhaled trichothecenes...
  10. doi request reprint A novel strategy for retrospective exposure assessment in the Norwegian silicon carbide industry
    Solveig Føreland
    National Institute of Occupational Health, Oslo, Norway
    J Occup Environ Hyg 9:230-41. 2012
    ....
  11. pmc Lung cancer incidence among Norwegian silicon carbide industry workers: associations with particulate exposure factors
    Merete Drevvatne Bugge
    National Institute of Occupational Health, Pb 8149 Dep, Oslo N 0033, Norway
    Occup Environ Med 69:527-33. 2012
    ..The aim of the present study was to examine the relative importance of specific exposure factors by using a comprehensive, historic job exposure matrix based on about 8000 measurements...
  12. ncbi request reprint Ochratoxin A in grain dust--estimated exposure and relations to agricultural practices in grain production
    Anne Straumfors Halstensen
    National Institute of Occupational Health, PO Box 8149, N 0033 Oslo, Norway
    Ann Agric Environ Med 11:245-54. 2004
    ..Compared to oral intake of OTA, the inhalant exposure during grain work was low, although varying by more than 1,000-fold. However, the farmers may occasionally be highly exposed, particularly during handling of stored grain...
  13. ncbi request reprint Atopic and non-atopic asthma in a farming and a general population
    Wijnand Eduard
    National Institute of Occupational Health, Oslo, Norway
    Am J Ind Med 46:396-9. 2004
    ..No external reference population had been included. We, therefore, compared this farming population with the general population from an adjacent region...
  14. ncbi request reprint Toxigenic Fusarium spp. as determinants of trichothecene mycotoxins in settled grain dust
    Anne Straumfors Halstensen
    Department of Occupational Hygiene, National Institute of Occupational Health, Oslo, Norway
    J Occup Environ Hyg 3:651-9. 2006
    ..PCR clearly improved the detection of toxigenic Fusaria as potential sources of health risks for farmers inhaling grain dust during work, but the use of Fusarium-DNA as indicators for trichothecenes should be used cautiously...
  15. ncbi request reprint Antibody response to long-term and high-dose mould-exposed sawmill workers
    B Rydjord
    Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway
    Scand J Immunol 66:711-8. 2007
    ..In conclusion, the present study strongly suggests that high mould exposure can induce a strong IgG and IgA response in a dose-dependent manner...
  16. doi request reprint Occupational exposure to bacterial single cell protein induces inflammation in lung and blood
    L I B Sikkeland
    Centre for Occupational and Environmental Medicine, Rikshospitalet University Hospital, Oslo, Norway
    Inhal Toxicol 21:674-81. 2009
    ....
  17. ncbi request reprint Trichothecene mycotoxins and their determinants in settled dust related to grain production
    Karl Christian Nordby
    National Institute of Occupational Health, PO Box 8149, Dep N 0033 Oslo, Norway
    Ann Agric Environ Med 11:75-83. 2004
    ..Fungal forecasts are validated as indicators of mycotoxin exposure of grain farmers and their use in epidemiological studies may be warranted...
  18. ncbi request reprint Associations between acute symptoms and bioaerosol exposure during the collection of household waste
    Kari Kulvik Heldal
    National Institute of Occupational Health, Oslo, Norway
    Am J Ind Med 46:253-60. 2004
    ..A study was performed to investigate associations between work-related symptoms and bioaerosol exposure in 22 workers collecting waste separated at source and mixed household waste...
  19. doi request reprint Fungal spores: a critical review of the toxicological and epidemiological evidence as a basis for occupational exposure limit setting
    Wijnand Eduard
    National Institute of Occupational Health, Oslo, Norway
    Crit Rev Toxicol 39:799-864. 2009
    ..Mycotoxin-producing and pathogenic species have to be detected specifically, however, because of their higher toxicity...
  20. pmc Exposure to fibres, crystalline silica, silicon carbide and sulphur dioxide in the norwegian silicon carbide industry
    S Føreland
    Department of Chemical and Biological Working Environment, National Institute of Occupational Health, PO Box 8149 Dep, N 0033 Oslo, Norway
    Ann Occup Hyg 52:317-36. 2008
    ..The aim of this study was to assess personal exposure to fibres, crystalline silica, silicon carbide (SiC) and sulphur dioxide in the Norwegian SiC industry...
  21. ncbi request reprint Determinants of dust exposure in tunnel construction work
    Berit Bakke
    National Institute of Occupational Health, Oslo, Norway
    Appl Occup Environ Hyg 17:783-96. 2002
    ..g., drilling and scaling), the presence of a cab, and breakthrough of the tunnel. The use of ventilated, closed cabs appeared to be the single most important control measure for lowering exposures...
  22. ncbi request reprint Exposure, symptoms and airway inflammation among sewage workers
    Kari Kulvik Heldal
    National Institute of Occupational Health, Oslo, Norway
    Ann Agric Environ Med 17:263-8. 2010
    ..Exposure-response relationships were found for nasal dimensions, nose irritation and systemic symptoms...
  23. doi request reprint Long-term occupational outcomes of endotoxin exposure and the effect of exposure cessation
    Marit Skogstad
    National Institute of Occupational Health, PO Box 8149 Dep, N 0033 Oslo, Norway
    Occup Environ Med 69:107-12. 2012
    ..To study the possible respiratory and haematological effects of endotoxin exposure to bacterial single-cell protein (BSCP) in workers during a follow-up period of 5 years including 4 years of exposure and 1 year without exposure...
  24. pmc Mortality from non-malignant respiratory diseases among workers in the Norwegian silicon carbide industry: associations with dust exposure
    Merete Drevvatne Bugge
    Department of Occupational Medicine and Epidemiology, National Institute of Occupational Health, Oslo, Norway
    Occup Environ Med 68:863-9. 2011
    ..The objective of the present study was to evaluate the influence of specific exposure factors on mortality from obstructive lung diseases (OLD), using a newly revised job-exposure matrix...
  25. pmc Short term changes in lung function, leukocytosis in blood, and lachrymal fluid among bacterial single cell protein workers after an episode with high exposure to endotoxins
    M Skogstad
    National Institute of Occupational Health, PO Box 8149 Dep, N 0033 Oslo, Norway
    Occup Environ Med 62:576-80. 2005
    ..To study possible effects of endotoxin exposure among bacterial single cell protein workers on pulmonary function, blood parameters, and lachrymal fluid before and after a work shift...
  26. pmc Upper airway inflammation in waste handlers exposed to bioaerosols
    K K Heldal
    National Institute of Occupational Health, Oslo, Norway
    Occup Environ Med 60:444-50. 2003
    ..To examine work associated upper airway inflammation in 31 waste handlers, and to correlate these findings with personally monitored exposure to different bioaerosol components...
  27. pmc Cumulative exposure to dust and gases as determinants of lung function decline in tunnel construction workers
    B Bakke
    National Institute of Occupational Health, Oslo, Norway
    Occup Environ Med 61:262-9. 2004
    ..To study the relation between lung function decrease and cumulative exposure to dust and gases in tunnel construction workers...
  28. ncbi request reprint Airway inflammation in waste handlers exposed to bioaerosols assessed by induced sputum
    K K Heldal
    National Institute of Occupational Health, Oslo, Norway
    Eur Respir J 21:641-5. 2003
    ..The inflammatory response was related to microbial components in the bioaerosol and was more pronounced for endotoxin than beta(1-3)-glucan exposure. No associations were found for mould spores or bacteria...
  29. ncbi request reprint Classification of particles from the farm environment by automated sizing, counting and chemical characterisation with scanning electron microscopy-energy dispersive spectroscopy
    A Skogstad
    National Institute of Occupational Health, P O Box 8149 Dep, 0033 Oslo, Norway
    J Environ Monit 1:379-82. 1999
    ..g. grain, straw, hay, potatoes, and onions. It seems likely that the results can be used in etiologic studies, but further validation would be needed for quantitative purposes...
  30. ncbi request reprint Effects of blasting fumes on exposure and short-term lung function changes in tunnel construction workers
    B Bakke
    National Institute of Occupational Health, Oslo, Norway
    Scand J Work Environ Health 27:250-7. 2001
    ..This study attempts to determine the effects of exposure to blasting fumes and its influence on the lung function of tunnel workers...
  31. ncbi request reprint Determinants of microbial exposure in grain farming
    A S Halstensen
    Department of Chemical and Biological Working Environment, National Institute of Occupational Health, PO Box 8149 Dep, N 0033 Oslo, Norway
    Ann Occup Hyg 51:581-92. 2007
    ..We investigated the influence of weather and production practices on personal microbial exposure during grain work...
  32. ncbi request reprint Dust and gas exposure in tunnel construction work
    B Bakke
    National Institute of Occupational Health, Oslo, Norway
    AIHAJ 62:457-65. 2001
    ..4-0.9 ppm), except for shaft drillers and tunnel-boring machine workers, who had lower exposures. High short-term exposures (>10 ppm), however, occurred when workers were passing through the blasting cloud...
  33. ncbi request reprint Determinants of asthma in a farming population
    E Melbostad
    National Institute of Occupational Health, Oslo, Norway
    Scand J Work Environ Health 24:262-9. 1998
    ....
  34. ncbi request reprint Airborne fibres in the norwegian silicon carbide industry
    A Skogstad
    Department of Occupational Hygiene, National Institute of Occupational Health, Oslo, Norway
    Ann Occup Hyg 50:231-40. 2006
    ..Two other fibre categories were correlated with type of SiC produced (i.e. black or green SiC) and sawdust added to the raw material mix...
  35. ncbi request reprint Symptoms prevalence among office employees and associations to building characteristics
    K Skyberg
    National Institute of Occupational Health, Oslo, Norway
    Indoor Air 13:246-52. 2003
    ..5 (95%CI 1.1-2.0). A high ventilation flow or central ventilation unit filter EU7 vs. EU8 seemed to be associated with an increased risk of general symptoms. Absence of local temperature control increased the risk of mucosal symptoms...
  36. doi request reprint Determinants of exposure to dust and dust constituents in the Norwegian silicon carbide industry
    Solveig Føreland
    National Institute of Occupational Health, Oslo, Norway
    Ann Occup Hyg 57:417-31. 2013
    ..The aim of this study was to identify important determinants of dust exposure in the Norwegian silicon carbide (SiC) industry and to suggest possible control measures...
  37. ncbi request reprint The effect of cleaning on dust and the health of office workers: an intervention study
    Knut R Skulberg
    National Institute of Occupational Health, Oslo, Norway
    Epidemiology 15:71-8. 2004
    ..Office employees often experience symptoms that could be related to indoor air exposures...
  38. ncbi request reprint Effects of electric field reduction in visual display units on skin symptoms
    K R Skulberg
    National Institute of Occupational Health, Oslo, Norway
    Scand J Work Environ Health 27:140-5. 2001
    ..This study investigated the facial skin complaints of office workers before and after the static electric fields of a visual display unit were reduced...
  39. ncbi request reprint The effects of intervention with local electrostatic air cleaners on airborne dust and the health of office employees
    K R Skulberg
    National Institute of Occupational Health, Oslo, Norway
    Indoor Air 15:152-9. 2005
    ..Median PEF increased 3 ml/s in the intervention group, and decreased 4 ml/s in the control group. The adjusted odds ratio for an increase above the 70th percentile was 5.7 (95% CI 1.0-32)...
  40. ncbi request reprint Solubility of endotoxins from Escherichia coli and Pseudomonas aeruginosa
    Wijnand Eduard
    National Institute of Occupational Health, Oslo, Norway
    Am J Ind Med 46:375-7. 2004
    ..The Limulus amebocyte lysate (LAL) assay may underestimate endotoxins because only soluble endotoxins are determined. The solubility of endotoxins was, therefore, studied in two species of Gram-negative bacteria...
  41. ncbi request reprint Working Group report 4: exposure assessment for biological agents
    Peter S Thorne
    College of Public Health, University of Iowa, Iowa City, IA 55242 5000, USA
    Am J Ind Med 46:419-22. 2004
    ..Endotoxin exposure assessment using the Limulus amebocyte lysate method is a high priority for harmonization because of its importance as a pulmonary inflammatory agent in many occupational settings...
  42. ncbi request reprint A health-based criteria document on fungal spore exposure in the working population. Is it relevant for the general population?
    Wijnand Eduard
    Indoor Air 18:257-8. 2008
  43. ncbi request reprint Detection of allergens from Alternaria alternata by gold-conjugated anti-human IgE and field emission scanning electron microscopy
    Jason K Sercombe
    Woolcock Institute of Medical Research, Sydney, Australia
    J Immunol Methods 316:167-70. 2006
    ..Non-specific antibody controls showed no labelling associated with germinating fungi. This suggests that material released from hyphae may be an additional source of fungal allergens...