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PubMed2000

Archeological evidence of parasitic infection from the 19th century company town of Fayette, Michigan.

Archeological deposits from the 19th century company town of Fayette, Michigan were analyzed for evidence of endoparasitic infection in the human population residing in the town between 1867 and 1891. Three privies were associated with upper-income and middle-income neighborhoods; 2 household refuse disposal areas were found in a predominately lower-income immigrant working class neighborhood. Sediment samples from 2 privies associated with dwellings in the middle-income neighborhood were positive for eggs of the human whipworm Trichuris trichiura. The parasite was probably also present among residents of the lower income neighborhood, but the shallow nature of the refuse deposits in that locality precluded preservation of the eggs. Contemporary epidemiologic studies of helminth infections support the belief that T. trichiura may have been a common parasite of 19th century school-age children given the natural inclination of young children to defecate indiscriminately, play freely in the dirt, and eat without washing their hands.

Animals↗
PubMed2005

Potential tree species for use in the restoration of unsanitary landfills.

Given that they represent the most economical option for disposing of refuse, waste landfills are widespread in urban areas. However, landfills generate air and water pollution and require restoration for landscape development. A number of unsanitary waste landfills have caused severe environmental problems in developing countries. This study aimed to investigate the colonization status of different tree species on waste landfills to assess their potential for restoring unsanitary landfills in South Korea. Plot surveys were conducted using 10 x 10-m quadrats at seven waste landfill sites: Bunsuri, Dugiri, Hasanundong, Gomaeri, Kyongseodong, Mojeonri, and Shindaedong. We determined the height, diameter at breast height (DBH), and number of tree species in the plots, and enumerated all saplings < or =1 m high. Because black locust, Robinia pseudoacacia, was the dominant tree species in the waste landfills, we measured the distance from the presumed mother plant (i.e., the tallest black locust in a patch), height, and DBH of all individuals in black locust patches to determine patch structure. Robinia pseudoacacia, Salix koreensis, and Populus sieboldii formed canopy layers in the waste landfills. The basal area of black locust was 1.51 m(2)/ha, and this species had the highest number of saplings among all tree species. The diameter of the black locust patches ranged from 3.71 to 11.29 m. As the patch diameter increased, the number of regenerated saplings also tended to increase, albeit not significantly. Black locust invaded via bud banks and spread clonally in a concentric pattern across the landfills. This species grew well in the dry habitat of the landfills, and its growth rate was very high. Furthermore, black locust has the ability to fix nitrogen symbiotically; it is therefore considered a well-adapted species for waste landfills. Eleven woody species were selected for screening: Acer palmatum, Albizzia julibrissin, Buxus microphylla var. koreana, Ginkgo biloba, Hibiscus syriacus, Koelreuteria paniculata, Ligustrum obtusifolium, Liriodendron tulipifera, Pinus koraiensis, Pinus thunbergii, and Sophora japonica. As a result of a comparison of the total ratio (sum of shoot extension and diameter growth at the landfill relative to a reference site) and mortality, six species (Liriodendron tulipifera, Albizzia julibrissin, Ligustrum obtusifolium, Buxus microphylla var. koreana, Hibiscus syriacus, and Sophora japonica), which had a total ratio >1 and experienced low mortality, are recommended as potentially suitable species for waste landfill remediation. We suggest that mixed plantations of ubiquitous adaptable species and naturally occurring black locust will enhance the landscape through synergistic effects.

Adaptation, Physiological↗
PubMed1993

Socioeconomic, environmental, demographic and behavioral factors associated with occurrence of diarrhea in young children in the Republic of Congo.

This study is the result of a cross-sectional survey undertaken in five regions of the Republic of Congo. A sample of 612 women having children under 3 years of age was interviewed to determine the socioeconomic, environmental, demographic and behavioral factors associated with the occurrence of diarrhea in young children. Logistic regression analysis was used to determine which variables predict the occurrence of diarrhea in a multivariable context. Most of the statistically significant variables were those suggesting behaviorally mediated modes of transmission. These include: type of weaning food fed to the child, maternal age, sex of the child, maternal sickness and method of refuse disposal. Male children had a more than two-fold odds of experiencing recent diarrhea than did female children among those greater than 1 year of age. Although breastfeeding status was not statistically significantly associated with diarrheal disease, children under 1 year of age who were already weaned had a greater odds of disease than those who were still breasted. Due to the pattern of extended breastfeeding in this population, this relationship was difficult to assess. Urban residence also was highly associated with diarrheal disease occurrence. Urban residence is likely to reflect a host of socioeconomic, environmental and behavioral factors. These findings underscore the potential impact of educational interventions on the occurrence of diarrheal disease among young children.

Breast Feeding↗
PubMedDate not supplied

The quality of life of families of female-headed households in Botswana: a secondary analysis of case studies.

Previous studies note a positive relationship between female-headed households (FHHs) and poverty in urban and rural areas of Botswana. To explore this further, data were collected from 7 FHHs through participant observation and open-ended interviews. A secondary analysis of data described the quality of life (QOL) of members of the households according to one's ability to meet basic human needs (food, water, shelter, safety, and health). FHHs ranged in age from 40-91 years, with family size ranging from 1-11 members. Monthly income for 6 of the 7 families was 30 dollars (U.S.) per month or less. Physical living environments were overcrowded, with poorly maintained latrines and unsafe refuse disposal. Family illnesses included hypertension, cataracts, mental illness, knee pain, ringworm, leg sores, and tonsillitis. Health risk behaviours included unprotected sex, alcohol abuse, and breastfeeding among potentially HIV positive mothers. Although Botswana claims rapidly rising levels of national income after independence, the QOL of FHHs remains poor. We suggest that, to alleviate poverty, governments in developing African countries should explore strategies that effectively target families headed by women.

Adult↗
PubMed2006

Improving the roles of rural women in health and environmental issues.

Safe water supply, sanitation facilities and safe environments are the priorities of the communities in the villages of Upper Egypt. However, personal hygienic behaviors need improvement for substantial promotion of family health. This cannot be met without the full participation of women in their various roles in their communities. Accordingly, 375 females belonging to rural villages of Egypt (VHVs) volunteered to have a role in health and sanitation aspects and disseminate hygienic messages to their communities. The objective of this study was to assess and upgrade the levels of awareness, attitude and practice of VHVs towards environmental sanitation, sanitary housing, personal hygiene, safe water, food safety, sanitary sewage and refuse disposals. Implementation of environmental health education courses resulted in significant improvement of VHVs' awareness, attitude and practice towards the majority of the environmental topics that were addressed. Similar extensive courses are recommended for the promotion of environmental sanitation in other communities.

Adult↗
PubMedDate not supplied

[Criteria for definition of environmental contamination indicators related to solid waste from health care facilities: a proposal for evaluation].

The objective of this study was to identify target microorganisms as indicators of environmental contamination. The study evaluates the main environmental aspects and epidemiological chain related to such agents. Microorganisms were selected through key information about microbiological characterization of health care facilities' solid waste and evaluation of risk of infection from discarded sharps. The form of evaluation proposed for criteria adopted in the selection of contamination indicators included prior submission of a structured questionnaire to a network of specialists from the Federal District of Brazil. The specialists' multidisciplinary background, including professionals from the health field and an environmental microbiologist, helped define environmental contamination indicators by consensus. Pathogens such as Mycobacterium tuberculosis and hepatitis A and B viruses were specifically identified as capable of environmental survival or resistance.

Environmental Health↗
PubMed2006

[Gravimetric characterization of potentially infectious material in urban solid waste in southern Belo Horizonte, Minas Gerais State, Brazil].

This study investigated potentially infectious waste (feces, urine, blood, body fluids) in the composition of total municipal solid waste. From August to September 2002, solid waste samples from southern Belo Horizonte, capital of the State of Minas Gerais, were collected and sent to the solid waste treatment and disposal site at BR-040 for segregation and quantification. Sharps (objects that can cause cuts or puncture wounds) made up 0.02+/-0.02% of the collected waste, while non-sharps accounted for 5.47+/-1.11%. In the sharps category, the majority were razor blades (0.01+/-0.01%), while among non-sharps the most frequent components were toilet paper (3.00+/-0.90%), diapers (2.21+/-1.08%), and sanitary napkins (0.22+/-0.12%). Household infectious waste was twice the total amount of waste (infectious + common) from healthcare units. The study was discussed in light of the health hazards and safety aspects for formal and informal waste collectors.

Brazil↗
PubMed2002

Inpatient hospital care for back disorders in relation to industry and occupation in Finland.

OBJECTIVES: The variation in hospital admission rates was studied for back disorders by industry and occupational title among gainfully employed Finns. METHODS: Admissions to Finnish hospitals in 1996 among 25- to 64-year-olds, based on the Hospital Discharge Register, were linked with sociodemographic data from the 1995 population census for the following primary diagnoses [International Classification of Diseases, 10th revision (ICD-10)]: all back disorders (M40.0-54.9; N (individual patients) 7,253), lumbar intevertebral disc disorders (M51.0-M51.9, N = 3,863), and other common back disorders (ICD-10: M47.1-47.2, M47.8-47.9, M48.0, M54.1, M54.3-54.5, M54.8-54.9; N = 2,433), with the total occupationally active workforce (same age range and gender) as reference. Age-standardized hospitalization rate ratios (SRR) were calculated. RESULTS: The highest SRR values for hospitalization for any back disorder were found for fishing (SRR 195), "other" mining and carrying (SRR 168), and sewage and refuse disposal (SRR 152) among the men and water transport (SRR 158), wood product (SRR 149) and pulp, paper and paper product (SRR 145) manufacturing among the women. Computer activities (SRR 44) among the men and insurance and pension funding (SRR49) among the women had the lowest SRR values. The occupations reindeer breeders and herders (SRR 495), agricultural workers (SRR 232), and paper product workers (SRR 205) among the men and plastic product (SRR 233), laundry (SRR 224), and agricultural (SRR 219) workers among the women had the highest SRR values. The lowest SRR values were observed for upper white-collar employees in public administration [men (SRR 40) and women (SRR 61)]. CONCLUSIONS: Hospitalization rates for back disorders were high for several physically strenuous industries and occupations.

Adult↗
PubMed1997

Waste abatement: recycling, disposal practices can cut costs.

On average, most healthcare facilities are doing less than they should in the areas of source reduction and recycling, and will likely do so until mandated by law. The main reasons for this are ever-tightening healthcare budgets, limited staffing, and the cost of operating recycling programs compared to the cost of general solid waste disposal. Poor record keeping also may also be hampering the final decision to recycle. This article, Part II on waste abatement practices in healthcare organizations, examines what factors facilities should consider in establishing a recycling program, and analyzes cost-effective collection and disposal practices.

Conservation of Natural Resources↗