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Results for “Field Workers”

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At least 19 recordsLinked to original sources

PubMedDate not supplied

Helping managers to manage: work schedules of field-workers in rural Bangladesh.

The Maternal-Child Health/Family Planning (MCH/FP) Extension Project in Bangladesh identifies and examines barriers to implementation of the national MCH/FP program, and determines strategies to overcome them. This study analyzes field-workers' ability to carry out more tasks than they do presently, and how their performance might be improved when additional field-workers are hired. In two experimental subdistricts, researchers observed the work of family welfare assistants (FWAs), the female family planning field-workers, to determine the duration and frequency of their home visits with village women and the content of their exchanges. While many factors influence the FWA's work, researchers found that the preplanned monthly work schedules could be manipulated relatively easily to improve duration and frequency of program contact with village women. With more time available to spend with women, the potential to improve the quality of services is enhanced.

Bangladesh↗

PubMed1977

Physiological response to organophosphate residues in field workers.

The physiologic response of 21 male agricultural field workers exposed to foliage-borne Guthion residues was monitored during routine peach-thinning operations in a northern California orchard. Surveillance included daily venipuncture and urine collection to determine whole blood cholinesterase (CHE) activity and level of dialkylphosphate excretion for 3 baseline (nonexposed) and 5 normal work days. Foliage samples were obtained to measure dislodgeable and total Guthion residues. A decrease in group-mean CHE activity by 15% over the surveillance period was found. Apart from one worker who showed a consistent decrease in CHE activity, reaching a maximum of 30% below baseline at the end of the work week, daily changes in individual CHE activity were erratic. Group-mean dialkylphosphate excretion levels provided a semiquantitative indication of exposure to Guthion. Medical examination before and after the exposure period revealed an absence of clinical signs of organophosphate intoxication.

Adult↗

PubMed1991

Training field workers to observe hygiene-related behaviour.

A study is reported from Nigeria on the training of field workers in the making of structured observations on hygiene-related behaviour with a view to improving the control of diarrhoeal diseases. The programme led to a high degree of consistency in the perception and description of such behaviour by the participants.

Adult↗

PubMed1991

Clastogenic effect of pesticides in peripheral lymphocytes of cotton-field workers.

We studied clastogenic effects in peripheral lymphocytes of cotton-field workers who were exposed to different pesticides. All the cells were grown in RPMI 1640 medium for 48 and 72 h. The type of aberrations observed in the exposed group are gaps, breaks, dicentrics, exchanges, rings and polyploidy. The frequency of total chromosomal aberrations increased significantly in male pesticide applicators when compared to controls. A significant decrease in mitotic index was observed in the exposed group as compared to the control group. The 48-h cultures showed high incidence of chromosomal aberrations and low mitotic index when compared to 72-h cultures. The difference in chromosomal aberrations between 48- and 72-h cultures was not significant. 24 out of 26 individuals showed ill health effects such as severe giddiness and nervous disorders.

Adolescent↗

PubMed1992

Field worker exposure to selected insecticides applied to corn via center-pivot irrigation.

Field workers were monitored for dermal and respiratory exposure to chlorpyrifos (with and without crop oil), carbaryl, and permethrin at reentry intervals of 2, 4, 8, 24, and 48 h after application. Insecticides were applied to R3 stage corn through an overhead center-pivot irrigation system. Dermal exposure was measured by analyzing 18 gauze pads attached to the clothing of workers to represent human body regions. Hand exposure was determined using cotton gloves. Respiratory exposure was determined using portable air samplers equipped with polyurethane foam plugs to trap ambient insecticide residues. Gas liquid chromatography was used to quantify residues of chlorpyrifos and permethrin in gauze pads, gloves, and foam plugs. Carbaryl residues in pads, gloves, and foam plugs were analyzed using high-performance liquid chromatography. Highest dermal and respiratory exposures were found at the 2-h reentry interval. Exposures decreased as reentry interval increased. Dermal exposure was primarily confined to the hands. Residues detected by air samplers ranged from 0 to 0.03 micrograms/liter. Based on the estimated percentages of acute toxic dose (all less than 0.00038%), the risk of acute toxicity to workers at the intervals studied was low.

Agricultural Workers' Diseases↗

PubMed1990

Methyl bromide intoxication in four field-workers during removal of soil fumigation sheets.

Methyl bromide is a highly toxic and penetrating compound used extensively as an insecticide for dry foodstuffs and as a soil fumigant (in greenhouses and fields) for the control of nematodes, fungi, and weeds. More than 300 cases of systemic poisoning and 60 fatalities attributable to methyl bromide have been reported [Alexeeff and Kilgore, 1983], resulting in substantial regulations concerning its handling, storage, application, and disposal. A recent exposure incident at a Connecticut nursery represents to our knowledge the first report of toxicity stemming from exposures in the field during removal of plastic sheets days after injection of methyl bromide into soil. Following removal of polyethylene sheets covering soil fumigated with methyl bromide, four field-workers developed fatigue and light-headedness and 3 workers noted progressive respiratory, gastrointestinal (GI), and neurologic symptoms. The acute systemic symptoms improved over several days, but later-onset neuropsychiatric symptoms persisted for several weeks. This incident stresses the need for improved worker education and strict adherence to safety precautions during all stages of methyl bromide fumigation and raises the possibility of an increased risk of toxicity associated with methyl bromide fumigation during a cool season.

Adult↗

PubMed1989

Chromosomal aberrations in peripheral lymphocytes of cotton field workers exposed to pesticides.

Fifty-two pesticide sprayers in cotton fields were selected for the analysis of chromosomal aberrations in peripheral lymphocytes. Twenty-five samples were collected from healthy males who were not exposed to pesticides. Statistical analysis revealed that there was a significant increase in chromosomal aberrations in the exposed population compared to controls. Total chromosomal aberrations increased irrespective of duration of exposure.

Adult↗

PubMed1975

A field worker's guide to a nutritional status survey.

This guide has been prepared specifically for the medical worker in a developing country who has little experience for survey methodology and few outside sources on which to draw. All, or only portions of the guide, may be used as local needs dictate. It provides an outline of necessary preparations, sampling, field organization, measuring techniques and recording form. To aid the statistical treatment and presentation of the data, a sample recording form is given together with coding instructions and output table layout.

Adolescent↗

PubMed1979

Exposure of field workers to organophosphorus insecticides: sweet corn and peaches.

Plasma and red blood cell cholinesterase levels of professional agricultural workers engaged in packing sweet corn and thinning peaches were monitored. Workers with extensive contact with mechanically harvested sweet corn (the corn had been treated one or two days before harvest with a combination of ethyl and methyl parathion) exhibited significant depression of cholinesterase. Gloves, worn by 40% of the workers, provided some protection from absorption of pesticide residues. No significant cholinesterase depression was found in workers thinning peaches which had been previously treated with parathion.

Adult↗

PubMed1979

Exposure of field workers to organophosphorus insecticides: cotton.

The red blood cell and plasma cholinesterase (ChE) levels of cotton scouts inspecting foliage for insect infestation and damage were monitored. Group means for ChE activity were significantly depressed at one or more time(s) during four of the eight growing seasons studied. Although no symptoms of organophosphate poisoning were confirmed, several scouts exhibited ChE depressions over 50% of pre-exposure levels.

Agricultural Workers' Diseases↗

PubMed1979