Industrial toxicities

If MPI is not considered to be real by the management then what is? This led me to look into the archives of the Singapore Medical Journal. The archive which was online ranged from the year 1964-2022. Here is where I found the articles about MPI in the factories. This peer reviewed journal concerns itself with contemporary health issues surrounding Singapore. I came across two articles of interest. The first one however did not really address factories manufacturing electronics. The second one focused specifically on surveying the visual status of factory employees in the electronics industries.

“In the small factories studied, most of the water-borne system toilets were of the squatting variety. This observation was gratifying, as it is not sensible to provide the Western or sitting type of toilet in the small factory, especially in Singapore or other parts of the East. There is greater danger of cross-infection in the usage of such toilets. Most Eastern users, moreover, would squat on the toilet seats, and dirty them with their shoes. It is also more difficult to clean such toilets if soiled. The squatting type of toilet, on the other hand, could be scrubbed or washed more easily.”1

This made me recall a quote by Aihwa Ong.

“Besides their fear of spirits residing in the water tank, an unaccustomed body posture is required to use the toilet. In their hurry to depart, unflushed toilets and soiled sanitary napkins, thrown helter-skelter, offend spirits who may attack them.”2

In the second article, one of the conclusions was that “progressive visual deterioration is a hazard which is not confirmed by this survey.”3

Another conclusion that drew my attention was this:

“Many of the complaints have a large psychogenic causative component. Some complaints of headache are very likely associated with neck ache and backache due to bad sitting posture. The work environment, though generally satisfactory from the point of view of lighting, ventilation, and such physical factors, tends to be boring. Interpersonal relationships between workers or with supervisors and management may loom in the minds of workers with exaggerated importance, and psychogenic maladies are bound to appear, reflecting unsatisfactory morale.”4

This survey was done a month before the first documented case of MPI in the factories. The article was written in December 1972 and the incident took place in January 1973. One wonders if the surveyors would have expected MPI to be one of these “psychogenic maladies”.

I was also in search of articles that affirm the age-old fact that long exposure to manufacturing chemicals can be detrimental to the health of the workers. The intention of this is to understand the potential health risks of working in factories. Two of the main concerns involved were carcinogens and reproductive issues.

Here again, I turn to the text of Aihwa Ong who sheds some light on the potential dangers of working in factories.

“Although management pointed to physiological problems as causing spirit attacks, they seldom acknowledged deeper scientific evidence of health hazards in microchip assembly plants. These include the rapid deterioration of eyesight caused by the prolonged use of microscopes in bonding processes. General exposure to strong solvents, acids, and fumes induced headaches, nausea, dizziness, and skin irritation in workers.”5

The use of organic solvents can enter the bloodstream when dissolved. This could lead to headaches, dizziness, drunkenness, weakness, tiredness and nausea. Protective fats and oil of skin are also dissolved which could contribute to the development of rash.

“More toxic substances used for cleaning purposes exposed workers to lead poisoning, kidney failure, and breast cancer (Federation of Women Lawyers 1983:16). Other materials used in the fabrication of computer chips have been linked to female workers' painful menstruation, their inability to conceive, and repeated miscarriages (Business Times [Asia], 9 October 1982:19; San Francisco Chronicle, 14 January 1987:23, 27). Within the plants, unhappy-looking workers were urged to talk over their problems with the "industrial relations assistant." Complaints of "pain in the chest" were interpreted to mean emotional distress, and the worker was ushered into the clinic for medication in order to maintain discipline and a relentless work schedule.”6

Vivian Lin defines her methodology on the potential hazards of health and safety in the semiconductor industries.

“The point is not to say, as many radical critics have said, that "capitalism is bad for your health." Rather, the study of health requires a search for the structures that mediate between the macro-level dynamics of capital accumulation and the micro-level functions of workers' bodies. These mediating structures lie in diverse spheres of life -- labor process, family, community, and cultures. It is through the interaction of these diverse factors -- and their conjuncture being historically specific -- that health and illness are socially produced.”7


This diagram which is also from the article has also helped me to visually understand the mechanism of structures that could affect health in factory labour.

One finding shows how certain illnesses were common in certain sections of the manufacturing process. As Vivian Lin puts it,

“When work areas are examined, some distinct patterns emerge. Workers in the assembly area and workers who are in the leader and QC (quality control) categories are more likely to have eye complaints. Workers in the end-of-line and test sections are more likely to complain of musculoskeletal problems. Workers in end-of-line and leader/QC are more likely to have nose, throat, and skin complaints.”8

According to Vivian Lin, the study of pregnancy issues in relation to manufacturing was found to have no strong connection.


“Among those reporting menstrual problems, pain and irregularity were the problems most frequently reported. Of the pregnancy problems, those exposed to chemicals mostly reported miscarriages, while infertility problems were divided between those exposed to microscopes and those with no exposures. The reported offspring problems were mostly premature births. Only married women are included in the analyses of workers reporting pregnancy and childbirth problems.”9

An incident recounted by Zainab Mahmood also made me think about factory labour and its effects on the health of workers. She describes how a fellow colleague went through a miscarriage that resulted in the foetus having “a hole in the heart”.11 She does not elaborate on whether this could have been caused by factory labour.

Nadia Florman also describes health issues faced by her former fellow workers too. Not being able to move for long periods of time and only working with one part of the body would result in some women developing issues with their legs.12 The tedium of the tasks was also a factor to be considered. Workers would go to work even if they were “sakit”(sick). Malaysian workers from across the causeway had to catch the bus at 3.30 am and they continued to go to work despite having health issues. Management was only concerned that they do their shifts and any reasons/excuses provided were not tolerated. In thinking about this, Vivian Lin  states that

“It is highly likely that the health and illness of electronics workers relate to the technical means of production, the social organization of work, and consumption and reproduction patterns. There are obvious health outcomes related directly to the technical means of production, such as microscope and eyesight determination; there are also problems related to the organization of work, such as shiftwork and sleeplessness. A state of ill-health persists when the occupational assault is great and the replenishments inadequate.”13



1. Phoon, W O, and S B Tan. “Environmental and Health Conditions in Small Factories in Singapore.”, Singapore Medical Journal, 1975.
2. Ong, Aihwa. “The Production of Possession: Spirits and the Multinational Corporation in Malaysia.” American Ethnologist, vol. 15, no. 1, Feb. 1988.
3-4. Lim, K H, et al. “Survey of Visual Status of Factory Employees in Electronics Industries in Singapore.” Singapore Medical Journal, 1972.
5-6. Ong, Aihwa. “The Production of Possession: Spirits and the Multinational Corporation in Malaysia.” American Ethnologist, vol. 15, no. 1, Feb. 1988.
7-9. Lin, Vivian. Health, Women’s Work, and Industrialization. 1986. 
11. Interview with Zainab Mahmood conducted by Shaza Ishak, 2023.
12. Interview with Nadia Florman conducted by Shaza Ishak, 2025.
13. Lin, Vivian. Health, Women’s Work, and Industrialization. 1986.