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Sugar Cane Cultivation and Processing

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Adapted from 3rd edition, “Encyclopaedia of Occupational Health and Safety”.

Cultivation

Sugar cane is a hardy crop that is cultivated in tropical and sub-tropical regions for its sucrose content and by-products such as molasses and bagasse (the waste fibrous residue). The plant grows in clumps of cylindrical stalks measuring from 1.25 to 7.25 cm in diameter and reaching 6 to 7 m in height. The cane stalks grow straight upward until the stalk becomes too heavy to hold itself up. It then lies on its side and continues to grow upward. This results in a mature cane field lying on top of itself in a mesh pattern. The sugar cane stalks contain a sap from which sugar is processed. Sugar cane is grown throughout the Caribbean, Central and South America, India, the Pacific Islands, Australia, Central and South Africa, Mauritius and the southern United States. Sugar cane’s main use is for sugar; however, it can be fermented and distilled to produce rum. Bagasse, the cellulose material that remains after pressing, may be used in the production of paper and other products or as a fuel source.

Under favourable conditions and the appropriate use of pesticides and fertilizers, cane grows rapidly. To ensure the maximum sugar content of 1 to 17% of total weight, the cane must be harvested immediately after it reaches its final growth period. The cane fields are burned prior to harvest, to eliminate weeds (without destroying the crop) and to destroy snakes, dangerous insects and other pests that live in the dense growth of the cane fields. Harvesting is done either by hand (machetes are used to cut the cane) or by a sugar cane harvesting machine. Mechanization of sugar cane harvesting has become more prevalent during the 1990s. However, hand harvesting still occurs in many parts of the world, as well as in field locations that are not conducive for harvesting equipment. Large numbers of seasonal or migrant labourers are employed during cane harvesting, especially in areas of hand harvesting.

To retain the sugar content, the cane has to be processed as soon as possible after harvesting; therefore the processing plants (mills) are located near the major areas of sugar cane production. The crop is transported to the mills by tractors, semi trucks or, in some areas, by internal rail systems.

Hazards and their prevention

In areas where hand harvesting prevails, many of the injuries are machete related. These injuries can range from minor cuts to the severing of body parts. Also, the machete is the tool that is most commonly used by the less skilled workers on the farm or plantation. Keeping the machete sharp aids in reducing injuries, since with a sharp machete the worker does not have to swing as hard and can maintain better control over the machete. There are also instances of workers getting into fights with machetes. Safety gloves armoured with chain mesh have been developed to provide protection for the hand from machete-related injuries. The use of steel-toed boots and arm and leg guards will also reduce these types of injuries. Boots will also provide some protection from snake bites. Working with cane also can very easily produce injuries and cuts to the eyes. Eye protection is recommended during hand harvesting, where workers are exposed to the cane stalks. Since cane is grown in tropical and sub-tropical locations, workers also need to be concerned about heat-related health problems. This can be exacerbated due to use of the necessary protective clothing. These regions are also areas of high levels of sun exposure, which can result in various types of skin cancer conditions. Precautions need to be taken to limit or protect against sun exposure.

Manual harvesting with machetes can also result in musculoskeletal injuries from the repetitive motions and physical effort. The size of the machete, sharpness and frequency of cutting strokes are factors that affect this. See also the article “Manual operations in farming” in this chapter.

Precautions need to be taken to prevent infection when cuts and abrasions occur. Where the harvesting has become mechanized, hazards exist that are associated with the particular machine being used. These are similar to those of other agricultural harvesting equipment.

Pesticides and other chemicals may involve toxic risks that can lead to poisoning through skin absorption or inhalation. People who apply the pesticides need to be instructed on the hazards of the operation and provided with protective clothing and adequate washing facilities. Their equipment needs to be maintained and repaired as needed in order to prevent spills. Back-pack sprayers are particularly prone to develop leaks that will cause spillage onto the person. Aerial applications of pesticides can affect other people that are in the area of the application. Also, when pesticides are applied, the product label provides both legal and practical requirements for handling and disposal after use, as well as listing time intervals after which it is safe for people to re-enter the field.

Sugar Cane Mills (Processing Plants)

The sugar cane industry is concerned with more than the production of food for human consumption. Certain kinds of sugar and sugar residues provide nutritious supplementary food for animals, and various products of commercial significance are obtained from the raw material and its by-products.

Principal by-products are saccharose, glucose, levulose, raffinose, pectin, waxes and betaines. Subproducts are stalks (used for fodder), bagasse, rum and molasses. Among products manufactured on an industrial scale are saccharose octacetate, ethyl alcohol and acetic, citric, glutamic, oxalic, formic and saccharic acids. Paper and hardboard are produced industrially from bagasse. Bagasse can also, when dried, be used as a biogas source or as fuel in the sugar mill.

In the sugar mill, the cane is crushed and the juice extracted by heavy rollers. The juice contains saccharose, glucose, levulose, organic salts and acids in solution, and is mixed with bagasse fibres, grit, clay, colouring matter, albumin and pectin in suspension. Because of the properties of albumin and the pectin, the juice cannot be filtered cold. Heat and chemicals are required to eliminate the impurities and to obtain saccharose.

The mixture is clarified by heating and the addition of lime-based precipitants. Once clarified, the juice is concentrated by vacuum evaporation until it precipitates in the form of grayish crystals. The concentrated juice, or molasses, is 45% water. Centrifugal treatment produces granulated sugar of a grayish hue (brown sugar), for which there is a market. White sugar is obtained by a refining process. In this process, the brown sugar is dissolved with various chemicals (sulphuric anhydride, phosphoric acid) and filtered with or without bone black, according to the purity desired. The filtered syrup evaporates under a vacuum until it crystallizes. It is then centrifuged until a white crystalline powder is obtained.

Hazards and their prevention

Worker conditions will vary according to geographical locale. Seasonal workers are especially vulnerable to living in substandard conditions. Health risks will vary in relation to the environmental factors, working conditions, living conditions and the socioeconomic class of the worker.

Due to the high temperatures in the areas where cane is produced, workers need to consume large quantities of liquid.

Fumes and gases such as carbon dioxide, sulphur dioxide, carbon monoxide and hydrochloric acid may be given off at various stages of the refining process. The high temperatures of processing can also result in fumes and steam that are not only irritating or hot, but sometimes can be toxic as well.

In some areas of the mill, there are excessive noise levels.

Bagassosis is an occupational lung disease of the extrinsic allergic alveolitis type, caused by breathing dusts containing spores of thermophilic actinomycetes which grow in stored, mouldy bagasse. Hypersensitivity pneumonitis can also result from this exposure.

In developing countries, workers may be unskilled, with no safety training. Also there may be a high turnover rate for employees, which can lead to problems in keeping up with training and increasing skill levels. Although statistical data do not show a high incidence of occupational disease, this can be due in part to reporting and calculating problems, such as the fact that the mills and refining plants are not open year-round, but only for 5 to 6 months of the year. Thus annual accident rates may appear low. During the remainder of the year, seasonal workers will be employed in entirely different jobs, while permanent employees will be maintaining and working with the machinery, equipment and facilities.

Occupational accidents, such as falls, strains, sprains and so on, differ little from those in other industrial and agricultural activities. With increasing mechanization, the occupational accidents are fewer but are often more serious. The more frequent injuries include diseases related to heat stroke or heat stress, dermatitis, conjunctivitis, burns and falls.

In order to plan and put into effect a health and safety programme for a specific sugar mill, it is necessary to conduct a qualitative and quantitative assessment of the risks and hazards involved, including identification of corrective measures, such as the use of local exhaust systems for dust, gas and fumes where appropriate. Dust control can be used effectively for controlling bagasse dust. The facility should be properly aired and ventilated to reduce excessive heat, and adequate lighting should be provided. Machinery should be properly guarded, and proper protective clothing should be provided and easily accessible to workers. Health and safety standards and regulations must be complied with. A proper safety programme, for which trained staff are responsible, to ensure the safety of the workers should be in place.

Noise is a widespread hazard. Noisy machines should be soundproofed, and, in areas where the noise level cannot be reduced adequately, hearing protection must be provided and a hearing conservation programme instituted. That programme should include audiometric testing and worker training.

 

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Contents

Preface
Part I. The Body
Part II. Health Care
Part III. Management & Policy
Part IV. Tools and Approaches
Part V. Psychosocial and Organizational Factors
Part VI. General Hazards
Part VII. The Environment
Part VIII. Accidents and Safety Management
Part IX. Chemicals
Part X. Industries Based on Biological Resources
Agriculture and Natural Resources Based Industries
Farming Systems
Food and Fibre Crops
Tree, Bramble and Vine Crops
Specialty Crops
Beverage Crops
Health and Environmental Issues
Resources
Beverage Industry
Fishing
Food Industry
Forestry
Hunting
Livestock Rearing
Lumber
Paper and Pulp Industry
Part XI. Industries Based on Natural Resources
Part XII. Chemical Industries
Part XIII. Manufacturing Industries
Part XIV. Textile and Apparel Industries
Part XV. Transport Industries
Part XVI. Construction
Part XVII. Services and Trade
Part XVIII. Guides

Agriculture and Natural Resources Based Industries Additional Resources

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Agriculture and Natural Resources Based Industries References

AgSafe—Coalition for Health and Safety in Agriculture. 1992. Occupational Injuries in California Agriculture 1981–1990. Berkeley, CA: University of California.

Alexandratos, N. 1995. World Agriculture: Towards 2010. An FAO Study. New York: John Wiley & Sons.

Bean, TL and TS Lawrence. 1992. Vehicles on Public Highways. National Institute for Farm Safety Paper No. 92-04.
Myrtle Beach, SC: National Institute for Farm Safety.

Bonsall, JL. 1985. Measurement of occupational exposure to pesticides. In Occupational Hazards of Pesticide Use, edited by GJ Turnbull. London: Taylor and Francis.

Boxer PA, C Burnett, and N Swanson. 1995. Suicide and occupation: A review of the literature. J Occup Med 37(4):442–452.

Bringhurst, LS, RN Byrne, and J Gershon-Cohen. 1959. Respiratory disease of mushroom workers. Farmer’s lung. JAMA 171:15–18.

Brown, LR, N Lenssen, and H Kane. 1995. Vital Signs 1995: The Trends that Are Shaping Our Future. New York: WW Norton & Company.

Bull, D. 1982. A Growing Problem: Pesticides and the Third World Poor. Washington DC: Oxfam.

Campbell, WP. 1987. The Condition of Agricultural Driveline System Shielding and Its Impact on Injuries and Fatalities. MS Thesis. West Lafayette, IN: Purdue University.

Chang, S. 1993. Mushroom biology: The impact on mushroom production and mushroom products. In Mushroom Biology and Mushroom Products, edited by S Chang, JA Buswell, and S Chiu. Hong Kong: Chinese University Press.

Christiani, DC. 1990. Occupational health in developing countries: Review of research needs. Am J Ind Med 17:393–401.

Connally LB, PA Schulte, RJ Alderfer, LM Goldenhar, GM Calvert, KE Davis-King, and WT Sanderson. 1996. Developing the National Institute for Occupational Safety and Health’s cancer control demonstration projects for farm populations. Journal of Rural Health suppl 12(4):258–264.

Cox, A, HTM Folgering, and LJLD Van Griensven. 1988. Extrinsic allergic alveolitis caused by the spores of the Oyster mushroom Pleurotus ostreatus. Eur Respir J 1:466–468.

—. 1989. Allergische Alveolitis verursacht durch Einatmung von Sporen des Pilzes Shii-take (Lentinus edodes). Atemwegs Lungenkr 15:233–234.

Dankelman, I and J Davidson. 1988. Women and Environment in the Third World: Alliance for the Future. London: Earthscan Publications.

Davies DR. 1995. Organophosphates, affective disorders, and suicide. Journal of Nutritional and Environmental Medicine 5:367–374.

Deere & Co. 1994. Farm and Ranch Safety Management. Moline, IL: Deere & Company.

Dufaut, A. 1988. Women carrying water: How it affects their health. Waterlines 6:23–25.

Eicher, LC. 1993. State Codes for Road Travel of Agricultural Machinery. American Society of Agricultural Engineering (ASAE) Paper No. 931513. St. Joseph, MI: ASAE.

Estlander T, L Kanerva and P Piirilä. 1996. Allergic dermatoses and respiratory diseases caused by decorative plants. Afr Newslttr Occup Health Saf 6(1):11–13.

Etherton, JR, JR Myers, RC Jensen, JC Russell, and RW Broddee. 1991. Agricultural machine-related deaths. Am J Public Health 81(6):776–768.

Food and Agriculture Organization (FAO) of the United Nations. 1987. African Agriculture: The Next 25 Years. Rome: FAO.

—. 1995. The State of World Fisheries and Aquaculture. Rome: FAO.

—. 1997. FAOSTAT Statistics Database (http://apps.fao.org/Default.htm). Accessed 22 January.

Forget, G. 1991. Pesticides and the third world. J Toxicol Environ Health 32:11–31.

—. 1992. Occupational health and development: An overview of the situation. IDRC Reports: Perils in the Workplace 20:4–7.

Franck IM and DM Brownstone. 1987. Harvesters. New York: Facts on File Publications.

Freivalds, A. 1984. Evaluation of the lift angle in spade work. Ergonomics 27 suppl:128–133.

Gerrits, JPG and LJLD Van Griensven. 1990. New developments in indoor composting (tunnel process). Mushroom J 205:21–29.

Gite, LP. 1991. Optimum handle height for animal drawn mould board plough. Appl Ergon 22:21–28.

Gite, LP and BG Yadav. 1990. Optimum handle height for a push-pull type manually operated dryland weeder. Ergonomics 33:1487–1494.

Glascock, LA, TL Bean, RK Wood, TG Carpenter, and RG Holmes. 1993. Characteristics of SMV Accidents. American Society of Agricultural Engineering (ASAE) Paper No. 931618. St. Joseph, MI: ASAE.

Griffin, GA. 1973. Combine Harvesting. Moline, IL: Deere & Company.

Gunderson, PD. 1995. An analysis of suicides on the farm or ranch within five north central United States, 1980 to 1988. In Agricultural Health and Safety: Workplace, Environment, Sustainability, edited by HH McDuffie, JA Dosman, KM Semchuk, SA Olenchock, and A Senthilselvan. Boca Raton, FL: CRC Press.

Hanrahan, LP, HA Anderson, LK Haskins, J Olson, K Lappe, and D Reding. 1996. Wisconsin farmer cancer mortality, 1981 to 1990: Selected malignancies. Journal of Rural Health suppl 12(4):273–277.

Hausen, BM, KH Schulz, and U Noster. 1974. Allergic disease caused by the spores of an edible fungus Pleurotus florida. Mushr Sci 9:219–225.

Horner, WE, MD Ibanez, V Liengswangwong, JE Salvaggio, and SB Lehrer. 1988. Characterization of allergens from spores of the Oyster mushroom Pleurotus ostreatus. J Allergy Clin Immunol 82:978–986.

International Labour Organization (ILO). 1994. Recent Developments in the Plantation Sector. Geneva: ILO.

International Organization for Standardization (ISO). 1985. ISO 263. Evaluation of Human Exposure to Whole-body Vibration: Part I: General Requirements. Geneva: ISO.

Jones, TH. 1978. How to Build Greenhouses, Garden Shelters, and Sheds. New York: Harper & Row.

Kelley, KA. 1996. Characteristics of flowing grain-related entrapments and suffocations with emphasis on grain transport vehicles. Journal of Agricultural Safety and Health 96(3):143–151.

Klincewicz, S, AT Fidler, G Siwinski, and A Fleeger. 1990. Health Hazard Report: Penick Corporation, Newark, New Jersey. No. HETA -87-311-2087. Cincinnati, OH: NIOSH.

Kundiev, YI. 1983. Conditions of labor in agriculture. In Occupational Diseases of Agricultural
Workers, edited by YI Kundiev and EP Krasnyu. Kiev: Zdorovye.

Loftas, T (ed.). 1995. Dimensions of Need: An Atlas of Food and Agriculture. Santa Barbara, CA: ABC-CLIO, Inc.

Makinen-Kiljunen, S, K Turjanmaa, T Palosuo, and T Reunala. 1992. Characterization of latex antigens and allergens in surgical gloves and natural rubber by immunoelectrophoretic methods. Journal Allergy Clin Immunol 90(2):230_235.

McDuffie, HH, JA Dosman, KM Semchuk, SA Olenchock, and A Senthilselvan (eds.). 1994. Agricultural Health and Safety: Workplace, Environment, Sustainability. Boca Raton, FL: CRC Press.

Merchant. JP, BA Boehlecke, G Taylor, and M Pickett-Harner (eds.). 1986. Occupational Respiratory Diseases. DHHS (NIOSH) Publication No. 86-102. Washington, DC: GPO.

Meridian Research, Inc. 1994. Occupational Safety and Health Hazards in Agriculture: A Review of the Literature. Silver Spring, MD: Meridian Research.

Meyers, JR. 1997. Injuries among Farm Workers in the United States, 1993. DHHS (NIOSH) Publication No. 97-115. Cincinnati, OH: NIOSH.

Meyers, JR and DL Hard. 1995. Work-related fatalities in the agricultural production and services sectors, 1980–1989. Am J Ind Med 27:51–63.

Miles, J. 1996. Personal communication.

Mines, R and PL Martin. 1986. A Profile of California Farmworkers. Giannini Information Series 86-2, Berkeley: University of California, Division of Agriculture and Natural Resources.

Mohan D and R Patel. 1992. Design of safer agricultural equipment: Application of ergonomics and epidemiology. Int J Ind Erg 10: 301–310.

Murphy, DJ and RC Williams. 1983. Safe Forage Harvesting. Agricultural Engineering Fact Sheet No. 21. State College, PA: Pennsylvania State University Cooperative Extension Service.

Murphy, DJ. 1992. Safety and Health for Production Agriculture. St. Joseph, MI: American Society of Agricultural Engineering.

Myers, ML. 1992. Sustainable Agriculture as a Strategy in Agricultural Safety. American Society of Agricultural Engineers (ASAE) Paper No. 928510. St. Joseph, MI: ASAE.

Nag, PK and SK Chatterjeee. 1981. Physiological reactions of female workers in Indian agricultural work. Hum Factors 23:607–614.

Nag, PK and P Dutt. 1979. Effectiveness of some simple agricultural weeders with reference to physiological responses. J Hum Ergol 8:13–21.

—. 1980. Circulo-respiratory efficiency in some agricultural work. Appl Ergon 11:81–84.

Nag, PK and CK Pradhan. 1992. Ergonomics in the hoeing operation. Int J Ind Erg 10:341–350.

Nag, PK, NC Sebastian, and MG Marlankar. 1980. Occupational workload of Indian agricultural workers. Ergonomics 23:91–102.

Nag, PK, A Goswami, SP Ashtekar, and CK Pradhan. 1988. Ergonomics in sickle operation. Appl Ergon 19:233–239.

Nakazawa, T, K Kanatani and Y Umegae. 1981. Mushroom workers lung due to the inhalation of spores of Cortinus shii-take. Jpn J Chest Dis 40:934–938.

National Committee for Childhood Agricultural Injury Prevention. 1996. Children and Agriculture: Opportunities for Safety and Health. Marshfield, WI: Marshfield Clinic.

National Research Council (NRC). 1989. Alternative Agriculture. Washington, DC: National Academy Press.

—. 1993. Sustainable Agriculture and the Environment in the Humid Tropics. Washington, DC: National Academy Press.

National Safety Council (NSC). 1942. Accident Facts. Chicago, IL: NSC.

—. 1986. Grain Harvest Safety. Chicago, IL: NSC.

—. 1993. Accident Facts. Chicago, IL: NSC.

—. 1995. Accident Facts. Chicago, IL: NSC.

Nomura, S. 1993. Studies on the work load and health management in agricultural workers. Journal of Japanese Association of Rural Medicine 42:1007–1011.

Olson, J.A. 1987. Pleurotus spores as allergens. Mushr J 172:115–117.

Organization for Economic Cooperation and Development (OECD). 1994. Farm Employment and Economic Adjustment in OECD Countries. Paris: OECD.

Parrón, T, AF Hernández, and E Villanueva. 1996. Increased risk of suicide with exposure to pesticides in an intensive agricultural area: A 12-year retrospective study. Forensic Science International 79:53–63.

Partanen, T. 1996. Improving the work environment by means of risk surveys. Afr Newslttr Occup Health Saf 6(2):28–29.

Pearce, N and JS Reif. 1990. Epidemiologic studies of cancer in agricultural workers. Am J Ind Med 18:133–148.

Pepys, J. 1967. Hypersensitivity against inhaled organic antigens. J Roy Coll Phys London 2:42–48.

Popendorf, W and KJ Donham. 1991. Agricultural hygiene. In Patty’s Industrial Hygiene and Toxicology, 4th edition, edited by GD Clayton and FE Clayton. New York: John Wiley & Sons, Inc.

Pradhan, CK, A Goswami, SK Ghosh, and PK Nag. 1986. Evaluation of working with spade in agriculture. Indian J Med Res 84:424–429.

Raffle, PAB, PH Adams, PJ Baxter, and WR Lee. 1994. Hunter’s Diseases of Occupations, 8th edition, London: Edward Arnold.

Recht, C and MF Wetterwald. 1992. Bamboos. Portland, OR: Timber Press.

Rowntree, RA. 1987. Contemplating the urban forests. In Our American Land: 1987 Yearbook of Agriculture. Washington, DC: USDA.

Rylander, R. 1986. Lung diseases caused by organic dusts in the farm environment. Am J Ind Med 10:221–227.

Sakula, A. 1967. Mushroom-worker’s lung. Brit Med J 3:708–710.

Sastre, J, MD Ibanez, M Lopez, and SB Lehrer. 1990. Respiratory and immunological reactions among Shii-take (Lentinus edodes) workers. Clin Exp Allergy 20:13–20.

Scherf, BD. 1995. World Watch List for Domestic Animal Diversity. Rome: FAO.

Sen, RN and PK Nag. 1975. Work organization of heavy load handling in India. J Hum Ergol 4:103–113.

Shutske, JM, WE Field, LD Gaultney, and SD Parsons. 1991. Agricultural machinery fire losses: A preventative approach. Applied Engineering in Agriculture 6(5):575–581.

Skillicorn, P, W Spira, and W Journet. 1993. Duckweed Aquaculture: A New Aquatic Farming System for Developing Countries. Washington, DC: World Bank.

Snyder, K and T Bobick. 1995. Safe Grain and Silage Handling. DHHS (NIOSH) Publication No. 95-109. Cincinnati, OH: NIOSH.

Sonnenberg, ASM, PCC Van Loon, and LJLD Van Griensven. 1996. Het aantal sporen dat Pleurotus
spp. in de lucht verspreidt (with an English summary). De Champignoncultuur 40:269–272.

Steinke, WE. 1991. Farm Labor, Tractor Use, and Farm Work Injury Survey. Unpublished data. Davis, CA: University of California.

Stewart, CJ. 1974. Mushroom worker’s lung—Two outbreaks. Thorax 29:252–257.

Stolz, JL, PH Arger, and JM Benson. 1976. Mushroom worker’s lung disease. Radiology 119:61–63.

Storch, G, JG Burford, RB George, L Kaufman, and L Ajello. 1980. Acute histoplasmosis: Description of an outbreak in Northern Louisiana. Chest 77(1):38–42.

Sullivan JB, M Gonzales, GR Krieger, and CF Runge. 1992. Health-related hazards of agriculture. In Hazardous Material Toxicology: Clinical Principles of Environmental Health, edited by JB Sullivan and GR Kreiger. London: Williams & Wilkins.

Tannahill, R. 1973. Food in History. New York: Stein and Day.

Toner, M. 1996. Debugging king cotton. Atlanta Journal-Constitution 47(50):G1.

United Nations Development Programme (UNDP). 1996. Urban Agriculture: Food, Jobs, and Sustainable Cities. New York: UNDP.

US Department of Agriculture (USDA). 1996. Foreign Agricultural Service Circular Series FTROP 2-96. Washington, DC: USDA.

US Department of Labor (DOL). 1968. Fair Labor Standards Act—The Hazardous Occupations Order for Agriculture. Washington, DC: US DOL.

US Department of State. 1996. International Narcotics Control Report. Washington, DC: US Department of State.

Van den Bogart, HGG. 1990. De champignonkwekerslong: een onderzoek naar voorkomen en etiologie in Nederland. PhD dissertation. Nijmegen, Netherlands: University of Nijmegen.

Van den Bogart, HGG, G Van den Ende, PGG Van Loon, and LJLD Van Griensven. 1993. Mushroom worker’s lung: serologic reactions to thermophilic actinomycetes in the air of compost tunnels. Mycopathologia 122:21–28.

Van Haaren, JPM. 1988. Occupational diseases. In The Cultivation of Mushrooms, edited by LJLD Van Griensven. Rustington, UK: Darlington Mushroom Laboratories.

Van Loon, PCC, AL Cox, OPJM Wuisman, SLGE Burgers, and LJLD Van Griensven. 1992. Mushroom worker’s lung. Detection of antibodies against shii take (Lentinus edodes) spore antigens in shii take workers. J Occup Med 34:1097–1101.

Villarejo, D. 1995. Issues for farm employees in the United States. In Agricultural Health and Safety: Workplace, Environment and Sustainability, edited by HH McDuffie, JA Dosman, KM Semchulk, SA Olenchock, and A Senthilselvan. Boca Raton, FL: CRC Press.

Viten VPh, EP Krashyyuh, and OV Ilyna. 1994. Ergonomic and health aspects of pesticide exposure in greenhouses. In Health, Safety and Ergonomic Aspects in Use of Chemicals in Agriculture and Forestry: Proceedings of the XII Joint GIGR; IAAMRH, IUFRP International Symposium, edited by Y Kundiev. Kiev: Institute for Occupational Health.

Wallerstein N and M Weinger. 1992. Health and safety education for worker empowerment. Am J Ind Med 22:619–635.

Weinger, J and M Lyons. 1992. Problem-solving in the fields: An action-oriented approach to farmworker education about pesticides. Am J Ind Med 22:677–690.

Weinger, M and N Wallerstein. 1990. Education for action: An innovative approach to training hospital employees. In Essentials of Modern Hospital Safety, edited by W Charney and J Whirmer. Chelsea, MI: Lewis Publishers.

Zejda. JE, HH McDuffie, and JA Dosman. 1993. Epidemiology of health and safety risks in agriculture and related industries: Practical applications for rural physicians. West J Med 158:56–63.