Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Eindrapportage project 'Stap voor stap naar een goede taakroulatie!'
    Kamps, M. ; Vermeulen, P.C.M. - \ 2007
    De Meern : Colland-Stigas - 14
    arbeidsomstandigheden - beroepskwalen - werkplanning - nederland - working conditions - occupational disorders - work planning - netherlands
    Binnen de glastuinbouw bestaat het grootste deel van de werkzaamheden uit een beperkt aantal taken: planten, gewasverzorging, oogsten en veiling klaarmaken. Daardoor is het merendeel van de werkzaamheden kort cyclisch en repeterend van aard. Het langdurig uitvoeren van dezelfde kort cyclische werkzaamheden geeft een grote kans op overbelasting van de rug en ledematen. Dit betekent dat de kans op gezondheidsklachten vergroot is. Roulatie over werkzaamheden leidt, mits dit andere bewegingen en houdingen tot gevolg heeft, tot minder eenzijdige belasting en kan daarmee de kans dat klachten optreden verminderen. Daarnaast kan taakroulatie de variatie in het werk groter maken en daarmee de motivatie van de medewerkers vergroten. Doel van het project is de eindresultaten van het rapport Taakroulatie in de glastuinbouw (PPO/A&F 2004) te vertalen naar een praktische toepasbare werkvorm binnen glastuinbouwbedrijven
    Arbeid en arbo bij het beheer van natuurgebieden en in de bosbouw
    Roelofs, P.F.M.M. ; Looije, A.A.J. - \ 2006
    Wageningen : Agrotechnology & Food Innovations (Rapport / Wageningen UR, Agrotechnology & Food Innovations 377) - ISBN 9789067548977 - 119
    bosbouw - beschermingsgebieden - arbeid (werk) - arbeidsomstandigheden - veiligheid op het werk - beroepskwalen - ziektepreventie - gezondheid op het werk - natuurgebieden - forestry - conservation areas - labour - working conditions - safety at work - occupational disorders - disease prevention - occupational health - natural areas
    Labour and labour conditions in Dutch forestry and in management of Dutch wildlife areas are studied by literature review, evaluation of workplaces and questionnaires. In the Netherlands, very few statistics are available about labour and absence through illness in forestry and management of wildlife areas. In this study, mainly based on data concerning the years 2000, 2001 and 2002, it is estimated that about 3867 people work in these sectors, and this number will probably rise. Absence trough illness was about 7%; this was more than the Dutch overall average of 5.5%.The most important reasons for sick leave were pain in the back or in the limbs, due to frequent lifting, lugging, pushing, pulling and exposure to vibrations. Cutting or pruning trees using chain saws and mowing using two-wheeled tractors or portable mowers were activities causing the most physical load.Forestry is known to be a dangerous sector compared to others, but national statistics concerning accidents are not available. Hygiene is amore important topic than in most other sectors, since often no sanitary facilities are available. Lyme-disease, caused by ticks, is a typical occupational disease in this sector. Also the mental load of workers in this sector is substantial. Forest workers have to observe many rules and laws, and have to deal with involvement of the general public and public opinion. Also workers in wildlife areas have to be good at handling the general public and public opinion, but additionally have to deal with changing objectives of the organization they work for. Beside of the traditional nature protecting tasks, they now also have to educate the visitors.Staatsbosbeheer and other organizations watching over forest or wildlife areas have taken initiatives to improve labour conditions for their employees. Initiatives, which are usable for others, are entered in the recommendations of this study.
    Met een aangepaste hogedrukspuit minder fysieke belasting tijdens het reinigen van stallen
    Roelofs, P.F.M.M. ; Looije, A. ; Oude Vrielink, H.H.E. ; Timmerman, M. - \ 2005
    arbeidsomstandigheden - beroepskwalen - technieken - arbeidskrachten in de landbouw - ergonomie - arbeid in de landbouw - working conditions - occupational disorders - techniques - agricultural manpower - ergonomics - farm labour
    Beschrijving van de resultaten van een project met als doel het verminderen van de fysieke belasting tijdens het reinigen van varkens- en pluimveestallen.
    Maatregelen ter vermindering van de blootstelling aan trillingen : deel 1: inventarisatie van de problematiek per tak
    Vink, A. ; Oude Vrielink, H.H.E. - \ 2005
    Wageningen : Agrotechnology & Food Innovations (Rapport / Wageningen UR, Agrotechnology & Food Innovations 466) - ISBN 9789067549356 - 59
    trilling van het hele lichaam - vibratie - landbouwwerktuigen - beroepskwalen - arbeidsomstandigheden - gezondheidsbescherming - eu regelingen - arbeid (werk) - whole body vibration - vibration - farm machinery - occupational disorders - working conditions - health protection - eu regulations - labour
    Taakroulatie in de glastuinbouw: onderzoek naar de beperkingen en mogelijkheden van taakroulatie
    Vermeulen, P.C.M. ; Woerden, S.C. van; Lans, C.J.M. van der; Vink, A. ; Kroeze, G.H. - \ 2004
    Naaldwijk : Praktijkonderzoek Plant & Omgeving B.V. / AFSG (Rapporten PPO 41414016) - 61
    arbeidsomstandigheden - beroepskwalen - kwaliteit van het leven - variatie - tuinbouw - arbeid (werk) - working conditions - occupational disorders - quality of life - variation - horticulture - labour
    Risk analysis of sick leave among Dutch farmers
    Hartman, E. - \ 2004
    Wageningen University. Promotor(en): Jos Metz; Ruud Huirne, co-promotor(en): H.H.E. Oude Vrielink. - Wageningen : Ponsen & Looijen BV - ISBN 9789085040767 - 144
    boeren - nederland - risicoschatting - risicofactoren - spier- en/of botanomalieën - beroepskwalen - ziekteverlof - farmers - netherlands - risk assessment - risk factors - musculoskeletal anomalies - occupational disorders - sick leave
    Agriculture can be seen as an occupational sector in which the workers are exposed to many health risks that may result in sick leave and working disability. The aim of this study was to gain insight into the problem of sick leave among Dutch farmers. A risk analysis of sick leave was performed in the agricultural branches to address the occurrence and duration of sick leave, as well as the main diagnoses of sick leave and the associations between sick leave and the farm- and work-related, psychosocial and personal risk factors. Data were collected from a database of a major Dutch insurance company with information on sick leave claims, by a questionnaire among farmers with or without a sick leave claim in the period 1998-2001 and from experts in the field of occupational health in agriculture. The results show that the risk of sick leave in the period 1994-1998 was constant over time, it varied between the agricultural branches, being the lowest in arable farming and the highest in mushroom farming. The highest incidence and the slowest recoverywasseen in the oldest age category. Overall, the main causes of sick leave were musculoskeletal disorders and injuries, of which 74% was work-related. For sick leave due to work-related injuries, farmers working in dairy farming or pig husbandry, older farmers and smokers were at increased risk. The dominant risk factors for sick leave due to back, neck, shoulder or upper extremity disorders were personal variables: increased age, smoking and former complaints. Farm characteristics and 'high work pace and workload' were also contributing. A strong association was found with farmers' exposure to combined physical load (multipleexposureto physical risk factors). On the basis of this study, reduction of sick leave among Dutch farmers should first of all be focused on the incidence of musculoskeletal disorders and work-related injuries.
    Arbeidsomstandigheden bij leghennen in het 'rode' gebied? Inventarisatie van IMAG en PV met 'stoplichtmodel'
    Ellen, H.H. ; Drost, W.C. - \ 2001
    De Pluimveehouderij 31 (2001)51/52. - ISSN 0166-8250 - p. 18 - 19.
    kippen - pluimvee - huisvesting van kippen - eierproductie - arbeidsomstandigheden - beroepskwalen - werkplaatsen - risicofactoren - risicoschatting - fowls - poultry - chicken housing - egg production - working conditions - occupational disorders - workshops - risk factors - risk assessment
    Grenswaarden van de verschillende risicofactoren zijn vastgelegd in het stoplichtmodel. De arbeidsomstandigheden in de biologische sector lijken gunstiger maar bij een volledige dagtaak vervalt dit verschil ten opzichte van andere huisvestingssystemen
    Arbeid en gezondheid van varkenshouders onder de loep
    Hartman, E. ; Roelofs, P. - \ 1999
    Praktijkonderzoek varkenshouderij 13 (1999)1. - ISSN 1382-0346 - p. 14 - 15.
    varkens - beroepsgevaren - gezondheid op het werk - arbeidsomstandigheden - beroepskwalen - arbeid in de landbouw - pigs - occupational hazards - occupational health - working conditions - occupational disorders - farm labour
    Uit een enquete van het Praktijkonderzoek Varkenshouderij en IMAG-DL0 blijkt dat varkenshouders het handmatig wegslepen van dode dieren, het verplaatsen van biggen met een kar en het drijven en tillen van af te leveren biggen als het zwaarst voor hun rug ervaren.
    Chronic Non Specific Lung Disease in the Workforce Occurence, impact, and identification of CNSLD
    Post, W.K. - \ 1999
    S.n. - ISBN 9789072245915 - 141
    ademhalingsziekten - gezondheid op het werk - beroepskwalen - respiratory diseases - occupational health - occupational disorders
    Nek- en schouderklachten bij chrysantensteksteeksters : intern verslag
    Kleemans, I.A. - \ 1997
    Wageningen : IMAG-DLO (Nota / DLO Instituut voor Milieu- en Agritechniek (IMAG-DLO) P 97-17)
    plantenvermeerdering - stekken - zaailingcultuur - zaaibedden - beplanten - Asteraceae - lichamelijke activiteit - moeheid - werk - analyse - arbeid (werk) - arbeidskunde - beroepskwalen - propagation - cuttings - seedling culture - seedbeds - planting - Asteraceae - physical activity - fatigue - work - analysis - labour - work study - occupational disorders
    Occupational pesticide exposure among Kenyan agricultural workers : an epidemiological and public health perspective
    Ohayo - Mitoko, G.J.A. - \ 1997
    Agricultural University. Promotor(en): J.S.M. Boleij; H. Kromhout; M.A. Koelen. - S.l. : Ohayo-Mitoko - ISBN 9789054857747 - 254
    beroepskwalen - toxische stoffen - toxicologie - gewasbescherming - pesticiden - nadelige gevolgen - gewervelde dieren - mens - kenya - occupational disorders - toxic substances - toxicology - plant protection - pesticides - adverse effects - vertebrates - man - kenya

    This study was part of the Kenyan component of a multi-centre epidemiologic survey, the East African Pesticides Project. The general objective was to assess the health hazards posed by pesticide handling, storage and use in agricultural estates and small farms in selected rural agricultural communities in Kenya where cotton, tobacco, flowers and other horticultural crops are grown, with a view to developing strategies for the prevention and control of pesticide poisoning. 666 agricultural workers, 120 agricultural extension workers and 108 health care workers from Naivasha, Wundanyi, Homabay and Migori comprised the study population. It was found that the 370 formulations registered for use in Kenya by the Pest Products Control Board (PCPB), represented 217 active ingredients. About 22% of the volume imported were highly hazardous, 20%, moderately hazardous, 45% slightly hazardous and the rest, unclassified. Acetylcholinesterase inhibition occurred in agricultural workers ( 390 exposed; 276 unexposed) as a result of exposure to organophosphate and carbamate pesticides. Acetylcholinesterase levels of 29.6% of exposed individuals were depressed to values below 60% of baseline. Workers from Naivasha had the largest inhibition (36%), followed by Homabay (35%), and Wundanyi (33%); workers from Migori had by far, the least inhibition (26%). Empirical modelling techniques were used to identify and quantify factors affecting exposure to cholinesterase-inhibiting pesticides. The models were adequate as they explained 57-70% of the observed variability in acetylcholinesterase. There was no significant difference in personal hygiene practices between areas. Access to a washing and bathing facility had a positive effect while washing hands and bathing was found to be more reactive than proactive. Spraying had a more profound effect on cholinesterase levels than mixing of pesticides. It has also been shown that workers who sprayed less hazardous pesticides had less inhibition than their counterparts who sprayed more toxic pesticides. However, hardly any variability existed in factors such as personal protective devices and hygienic behaviour within areas, thereby limiting the power of the models to detect the effects of these potential factors affecting exposure. The prevalence of symptoms in this population was described in order to relate levels of inhibition to reported symptoms and to evaluate at which inhibition levels symptoms become elevated. The prevalence of symptoms was found to be higher during the high exposure period than during the low exposure period in the exposed subjects. The presence of a relationship between acetylcholinesterase inhibition, acetylcholinesterase level and respiratory, eye and central nervous system symptoms was established. Increased symptom prevalence was observed at acetylcholinesterase levels which are generally considered as non-adverse. The knowledge, perceptious, observed and reported practices were assessed for the population of agricultural workers. Knowledge was found to be low with regard to safe use of pesticides. For instance the most important route of occupational exposure to pesticides. Practices such as storage, mixing and application were found to be generally poor. Personal hygiene practices were good but the use of personal protective devices was low especially among farmers in Homabay and Migori. The knowledge, perceptions and practices of agricultural extension workers was assessed with respect to safe handling of pesticides. About one third of the extension workers did not know the pesticide operations responsible for poisoning. All the extension workers reported that they were involved with advising on the use of pesticides but only 80% gave advise on safe use. About two thirds of the extension workers felt that pesticides poisoning was a minor problem. They emphasized following of instructions, use of personal protective clothing and devices as well as personal hygiene to prevent poisoning. Knowledge, perceptions and practices of health care workers were also assessed with respect to diagnosis, management and prevention of pesticide poisoning. Only about one fifth of the health care workers thought pesticide poisoning was a major problem in the community. Most of the health care workers were able to provide information on the health aspects of pesticides but less than ten percent of this information was directed at the farmers. Diagnosis of poisoning was found to be difficult with only one third of the health care workers reporting that they had seen at least one case of pesticide poisoning in the duration of time that they worked in this agricultural area. Almost all health care workers reported that they would like information and training as well as drugs and antidotes for the management and treatment of poisoning. Lack of knowledge, poor perceptions and practices at all levels as well as the availability and use of the more toxic pesticides were found to be major factors influencing pesticide poisoning. It is necessary to urgently initiate interventions to address the gaps found. The results of this study will facilitate the development of effective multi-faceted strategies for the management, prevention and control of occupational pesticide exposure in Kenya and other developing countries.
    Aspects of control measures in occupational hygiene
    Lumens, M. - \ 1997
    Agricultural University. Promotor(en): J.S.M. Boleij; F.J.H. van Dijk; R.F.M. Herber. - S.l. : Lumens - ISBN 9789054857815 - 125
    beroepskwalen - toxische stoffen - toxicologie - occupational disorders - toxic substances - toxicology

    This thesis focuses on two aspects which are of major importance in the broad field of control measures in occupational hygiene: the selection of control measures in a structured way and the impact of factors modifying the effectiveness of these control measures.

    The main objectives of the thesis are to determine the feasibility of a model approach in the selection of control measures and to assess the impact of work practices on the exposure to and uptake of chemical agents.

    Two models, i.e. the "dynamic model of exposure, susceptibility and effect" and the "multiple source model" describe the impact of control measures on workers' exposure. The feasibility of these models and the impact of the factors modifying the effectiveness of control measures was studied in the occupational hygiene practice by performing field studies at different types of workplaces: chromium plateries, lead smelter, battery factory and at construction sites.

    In the lead and chromium industries environmental and biological monitoring was carried out together with observations and questionnaires to assess hygienic behaviour. In the construction industry quartz exposure was characterized by personal air sampling and workplace observations.

    From the results of these studies it can be concluded that the application of the two models proved to be an important aid in the determination of sources of exposure. Consequently the selection of control measures in different branches of industry was facilitated.

    The differences in individual hygienic behaviour and working methods proved to be an important modifier of the relation between external and internal exposure. These results indicate that work practices need to be considered in the implementation of control measures.

    Respiratory health effects in pig farmers : assessment of exposure and epidemiological studies of risk factors
    Preller, L. - \ 1995
    Agricultural University. Promotor(en): J.S.M. Boleij; M.J.M. Tielen; D.J.J. Heederik. - S.l. : Preller - ISBN 9789054854272 - 173
    lucht - hygiëne - luchtverontreiniging - ademhalingsziekten - varkens - nederland - beroepskwalen - air - hygiene - air pollution - respiratory diseases - pigs - netherlands - occupational disorders

    This thesis describes a cross-sectional study of risk factors of chronic respiratory health effects in pig farmers working in the South of the Netherlands. The study population comprised 100 pig farmers with and 100 pig farmers without chronic respiratory symptoms. Base-line lung function, non-specific bronchial responsiveness, and specific antibodies to common and work- related antigens were determined as well. Exposure to dust, endotoxins and ammonia was measured by personal sampling during two days. Exposure to disinfectants was characterized by the type of disinfectant and procedure features.

    As part of the study, long-term average exposure to endotoxins was modelled using information on task activity patterns during two weeks and on farm characteristics; exposure-response relationships would be seriously underestimated if measured exposure would be used due to the large day-to-day variability relative to variation between individuals.

    Results of this epidemiological study suggest that the etiology of respiratory health effects in pig farmers is complex, involving different exposures and several mechanisms. The strongest evidence for a potential causal role of exposure was found for disinfectants and endotoxins, which may act either independently of atopy, or interact with atopic (IgE) sensitization to common allergens. It seems likely that IgE sensitization to common allergens can be induced by the use of disinfectants, specifically by those containing quaternary ammonium compounds. IgG 4 antibodies against work-related antigens were inversely related to respiratory impairment, potentially reflecting a protective effect of this type of antibodies.

    Change of disinfection procedures, application of specific farm characteristics, and the use of personal protective equipment can be considered as control measures to reduce health hazards, but additional studies are required to estimate the actual effect.

    Future epidemiological studies could provide evidence on the etiology of respiratory health effects when sufficient subjects are being studied in prospective studies and different etiological pathways are being considered. The exposure should be assessed on multiple occasions.

    Gehakseld stro geeft meer stof bij scharrelvarkens
    Roelofs, P. ; Sande-Schellekens, A. van de; Plagge, G. - \ 1994
    Praktijkonderzoek varkenshouderij 8 (1994)6. - ISSN 1382-0346 - p. 4 - 5.
    huisvesting, dieren - hygiëne - ligstro - beroepskwalen - varkensstallen - varkens - toxische stoffen - toxicologie - animal housing - hygiene - litter - occupational disorders - pig housing - pigs - toxic substances - toxicology
    Eén van de knelpunten in de scharrelvarkenshouderij is het hoge stofgehalte in de stallucht dat schadelijk is voor de gezondheid van de varkenshouder. Het stof is gedeeltelijk afkomstig van het gebruikte stro.
    Blootstelling van de toepasser aan methylisothiocyanaat tijdens de grondontsmetting van bloembollenpercelen met metam-natrium
    Rooij, M. de; Dijksterhuis, A. ; Aartrijk, J. van - \ 1993
    Lisse : LBO (Rapport / Laboratorium voor Bloembollenonderzoek nr. 82) - 45
    beroepskwalen - grondsterilisatie - bodemfumigatie - desinfecteren - egaliseermachines - grondverzetmaterieel - pesticiden - nadelige gevolgen - veiligheid op het werk - bloembollen - methylisocyanaat - metam - bedrijfshygiëne - occupational disorders - soil sterilization - soil fumigation - disinfestation - land levellers - earth moving equipment - pesticides - adverse effects - safety at work - ornamental bulbs - methyl isocyanate - metam - industrial hygiene
    Diepstrooiselsysteem: luchtkwaliteit niet altijd beter
    Roelofs, P. ; Binnendijk, G. ; Romein, H. ; Sande-Schellekens, A. van de - \ 1993
    Praktijkonderzoek varkenshouderij 7 (1993)3. - ISSN 1382-0346 - p. 17 - 18.
    dieren - huisvesting op dik strooisel - gezondheid - hygiëne - mens - beroepskwalen - varkensstallen - varkens - toxische stoffen - toxicologie - animals - deep litter housing - health - hygiene - man - occupational disorders - pig housing - pigs - toxic substances - toxicology
    De concentraties stof en schadelijke gassen in de stallucht op afdelingen met diepstrooiselsystemen zijn doorgaans lager dan op afdelingen met roostervloeren. Dit blijkt uit vergelijkende 24-uurs metingen.
    Beroepsmatige blootstelling aan gassen, dampen en stof als oorzaak van CARA.
    Post, W.K. ; Heederik, D. ; Kromhout, H. ; Kromhout, D. - \ 1992
    Wageningen : LU - 65
    chemicaliën - ziektebeloop - blootstelling - beroepskwalen - ademhalingsziekten - toxische stoffen - toxicologie - nederland - gelderland - chemicals - disease course - exposure - occupational disorders - respiratory diseases - toxic substances - toxicology - netherlands - gelderland
    Besparingen en preventie in de WAO.
    Schellart, A.J.M. ; Ophem, J.A.C. van - \ 1992
    ESB Economisch Statistische Berichten 77 (1992)3876. - ISSN 0013-0583 - p. 868 - 872.
    economisch beleid - economie - ziektekostenverzekering - beroepskwalen - sociale verzekering - sociale wetgeving - sociaal beleid - economic policy - economics - health insurance - occupational disorders - social insurance - social legislation - social policy
    1. Kritische kanttekeningen bij WAO-prijsmaatregelen van het kabinet voor zover gericht op de vraagkant; 2. Bespreking van de mogelijkheid om met volumebeleid even grote besparingen te realiseren als met het prijsbeleid
    Karakterisering van blootstelling aan chemische stoffen in de werkomgeving.
    Boleij, J.S.M. ; Heederik, D.J.J. ; Kromhout, H. - \ 1987
    Wageningen : Pudoc - ISBN 9789022009284 - 187
    beroepskwalen - toxische stoffen - toxicologie - blootstelling - chemicaliën - veiligheid op het werk - beroepsgevaren - fysiologie - occupational disorders - toxic substances - toxicology - exposure - chemicals - safety at work - occupational hazards - physiology
    Expositieschattingen en onderzoek naar acute- en chronische longfunctieveranderingen bij messing- en kopergieters
    Gerritsen, B. ; Steinmeijer, A. ; Heederik, D.J.J. ; Smid, T. - \ 1985
    Wageningen : L.H. - 53
    koper - longen - ademhalingsziekten - zink - beroepskwalen - blootstelling - copper - lungs - respiratory diseases - zinc - occupational disorders - exposure
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