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Hurricane Katrina struck New Orleans East-where the main Vietnamese enclave is located- especially hard. By chance, shortly before this disaster, sociodemographic and health data had been collected for a population-based sample of working-age Vietnamese Americans living in New Orleans. One year after the storm, the authors reinterviewed nearly all respondents from the original sample who had returned to the area, which netted about two thirds of the original sample. Results show that returnees were more likely than those yet to return to have been employed before the storm, to have worked in the skilled sector of the economy, to have been married, and to have owned a home. Many problems experienced during the immediate aftermath of the storm, such as crowded and unsanitary conditions, had been resolved by the first anniversary; however, other problems remained, such as a continuing lack of information, lack of access to medical care, and fears of violent crime. [ABSTRACT FROM AUTHOR]

BACKGROUND: The relationship of domestic endotoxin exposure to allergy and asthma has been widely investigated. However, few studies have evaluated predictors of household endotoxin, and none have done so for multiple locations within homes and on a national scale. OBJECTIVES: We assayed 2,552 house dust samples in a nationwide study to understand the predictors of household endotoxin in bedroom floors, family room floors, beds, kitchen floors, and family room sofas. METHODS: Reservoir house dust from five locations within homes was assayed for endotoxin and demographic and housing information was assessed through questionnaire and onsite evaluation of 2,456 residents of 831 homes selected to represent national demographics. We performed repeated-measures analysis of variance (rANOVA) for 37 candidate variables to identify independent predictors of endotoxin. Meteorologic data were obtained for each primary sampling unit and tested as predictors of indoor endotoxin to determine if wetter or warmer microclimates were associated with higher endotoxin levels. RESULTS: Weighted geometric mean endotoxin concentration ranged from 18.7 to 80.5 endotoxin units (EU)/mg for the five sampling locations, and endotoxin load ranged from 4,160 to 19,500 EU/m2. Bivariate analyses and rANOVA demonstrated that major predictors of endotoxin concentration were sampling location in the home, census division, educational attainment, presence of children, current dog ownership, resident-described problems with cockroaches, food debris, cockroach stains, and evidence of smoking observed by field staff. Low household income entered the model if educational attainment was removed. CONCLUSION: Increased endotoxin in household reservoir dust is principally associated with poverty, people, pets, household cleanliness, and geography. [ABSTRACT FROM AUTHOR]

BACKGROUND. Sixteen children diagnosed with acute leukemia between 1997 and 2002 lived in Churchill County, Nevada, at the time of or before their illness. Considering the county population and statewide cancer rate, fewer than two cases would be expected. OBJECTIVES. In March 2001, the Centers for Disease Control and Prevention led federal, state, and local agencies in a cross-sectional, case-comparison study to determine if ongoing environmental exposures posed a health risk to residents and to compare levels of contaminants in environmental and biologic samples collected from participating families. METHODS. Surveys with more than 500 variables were administered to 205 people in 69 families. Blood, urine, and cheek cell samples were collected and analyzed for 139 chemicals, eight viral markers, and several genetic polymorphisms. Air, water, soil, and dust samples were collected from almost 80 homes to measure more than 200 chemicals. RESULTS. The scope of this cancer cluster investigation exceeded any previous study of pediatric leukemia. Nonetheless, no exposure consistent with leukemia risk was identified. Overall, tungsten and arsenic levels in urine and water samples were significantly higher than national comparison values; however, levels were similar among case and comparison groups. CONCLUSIONS. Although the cases in this cancer cluster may in fact have a common etiology, their small number and the length of time between diagnosis and our exposure assessment lessen the ability to find an association between leukemia and environmental exposures. Given the limitations of individual cancer cluster investigations, it may prove more efficient to pool laboratory and questionnaire data from similar leukemia clusters. [ABSTRACT FROM AUTHOR]

High-efficiency particulate air (HEPA) filtered vacuum cleaners are recommended by the U.S. Department of Housing and Urban Development for cleaning lead-contaminated house dust. We performed a randomized field study to determine whether a conventional (non-HEPA) vacuum cleaner could achieve cleaning results comparable with those of a HEPA vacuum cleaner. We compared the lead loading reductions of these two vacuum cleaners in a total of 127 New Jersey homes of lead-exposed children. We used wet towelettes and a vacuum sampler to collect lead dust from carpets and upholstery before and after vacuum cleaning. The vacuum sampling data showed that the HEPA and non-HEPA vacuum cleaners resulted in 54.7% (p = 0.006) and 36.4% (p = 0.020) reductions in lead loading, respectively, when used on soiled carpets, although the overall difference in lead loading reduction between the two vacuum cleaners was not statistically significant (p = 0.293.). The wipe sampling data did not show any significant lead loading reduction for either of the vacuum cleaners, suggesting that both vacuum cleaners fail to clean the surfaces of carpet effectively, considering that wipe sampling media simulate surface contact. On upholstery, the wipe sampling data showed a significant reduction in lead loading for the non-HEPA vacuum cleaner (22.2%, p = 0.047). Even with the significant reduction, the postcleaning lead loadings on upholstery were similar to those on carpets. The similar lead loading results for carpets and upholstery indicate that soiled upholstery may be as important a source of childhood lead exposure as carpets. Key words: carpet, cleaning, HEPA, HUD, lead, upholstery, U.S. Department of Housing and Urban Development, vacuum. Environ Health Perspect 110:1233-1237 (2002). [ABSTRACT FROM AUTHOR]

The article focuses on a research aimed at renovating invasion barriots in Latin America. The article selected Las Colinas, Texas for analysis, as earlier comparative data were available. A random sample of 60 household heads were drawn in August-September 1971 and 58 formal interview schedules were completed. Those units that could not participate in the renovation project were excluded, as they were located in danger zones and areas reserved for public usage. The findings indicate that invasion barrio contains a heterogeneous population. The heterogeneity in family organization and income limited participation in the program. Only individuals that were relatively integrated into the larger society were successful participants. The participants in the project received substantial increases in some public services and improvements in some of housing conditions. To pay for these improvements families tended to change from a nuclear to an extended family structure. Furthermore, these previously property less household heads that had been living in rooming houses tended to become landlords renting rooms to outsiders.