A5103029853- Air Quality and Health Impacts
- Indoor Air Quality and Microbial Exposure
- Agriculture and Farm Safety
- Odor and Emission Control Technologies
- Energy and Environment Impacts
- Occupational Health and Safety Research
- Amphibian and Reptile Biology
- Pesticide Exposure and Toxicity
- Occupational exposure and asthma
- Injury Epidemiology and Prevention
- Noise Effects and Management
- Environmental Justice and Health Disparities
- Musculoskeletal pain and rehabilitation
- Vector-Borne Animal Diseases
- Occupational and environmental lung diseases
- Air Quality Monitoring and Forecasting
- Species Distribution and Climate Change
- Infection Control and Ventilation
- Asthma and respiratory diseases
- Energy, Environment, and Transportation Policies
- Wildlife Ecology and Conservation
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Turtle Biology and Conservation
- Respiratory viral infections research
- Heavy Metal Exposure and Toxicity
University of Georgia
2022-2024
Colorado State University
2012-2022
Intermountain Healthcare
2010-2022
Colorado Department of Public Health and Environment
2022
Colorado School of Public Health
2018-2022
University of Nebraska Medical Center
2020
North Bristol NHS Trust
2020
University of Colorado Anschutz Medical Campus
2020
Charles Darwin University
2007-2019
University of Wyoming
2018
Numerous articles have been published regarding the adverse respiratory health consequences of working in intensive livestock and poultry housing. Threshold limit exposure guidelines are not currently applied to this environment, but they essential implement monitor effective environmental controls. Previous dose-response research work with swine workers has resulted recommendations 2.5 mg/m3 total dust, 0.23 respirable 100 EU/m3 endotoxin, 7 ppm ammonia. No similar reported previously for...
Abstract Human respiratory health hazards for people working in livestock confinement buildings have been recognized since 1974. However, before comprehensive control programs can be implemented, more knowledge is needed of specific hazardous substances present the air these buildings, and at what concentrations they are harmful. Therefore, a medical epidemiological exposure‐response study was conducted on 207 swine producers using intensive housing systems (108 farms). Dose‐response...
In the spring and summer of 2001, 47 fathers, 48 mothers 117 children Iowa farm non-farm households were recruited to participate in a study investigating take-home pesticide exposure. On two occasions approximately 1 month apart, urine samples from each participant dust various rooms collected household analyzed for atrazine, metolachlor, glyphosate chlorpyrifos or their metabolites. The adjusted geometric mean (GM) level metabolite atrazine was significantly higher compared with those (P <...
ABSTRACT The global dairy industry is composed of a multitude countries with unique production practices and consumer markets. average number cows per farm about 1–2 cows; however, as business model transitions from sustenance to market production, the herd size, subsequent labor force increases. Dairy an agricultural commodity because milk produced daily, for 365 days year. With introduction new technology such milking parlor, trend one increasing sizes. sizes are largest in United States;...
Studies describing respiratory health hazards for workers in swine production facilities have been published the United States, Sweden, Canada, Netherlands, and Denmark. Up to 50% of these experience bronchitis, organic dust toxic syndrome, hyper-reactive airways disease, chronic mucous membrane irritation, other effects. These studies clearly point fact that this occupational environment poses a significant risk hazard, control methods are needed protect worker. Before precise strategies...
Epidemiologic studies of farm children are international interest because less often atopic, have allergic disease, and asthma than do nonfarm children--findings consistent with the hygiene hypothesis. We studied a cohort rural Iowa to determine association between other environmental risk factors four outcomes: doctor-diagnosed asthma, asthma/medication for wheeze, current cough exercise. Doctor-diagnosed prevalence was 12%, but at least one these health outcomes found in more third cohort....
Twenty-five farm (F) households and 25 nonfarm (NF) in Iowa were enrolled a study investigating agricultural pesticide contamination inside homes. Air, surface wipe, dust samples collected. Samples from 39 homes (20 F 19 NF) analyzed for atrazine, metolachlor, acetochlor, alachlor, chlorpyrifos. 11 (5 6 glyphosate 2,4-Dichlorophenoxyac etic acid (2,4-D). Greater than 88% of the air greater 74% wipe below limit detection (LOD). Among samples, chlorpyrifos was detected most frequently In all...
Abstract In agricultural and other environments, inhalation of airborne microorganisms is linked to respiratory disease development. Bacterial endotoxins, peptidoglycans, fungi are potential causative agents, but relative microbial characterization inflammatory comparisons amongst dusts not well described. The aim this study was determine the distribution endotoxin, 3-hydroxy fatty acids (3-OHFA), muramic acid, ergosterol evaluate responses in human monocytes bronchial epithelial cells with...
Elevated indoor air pollution levels due to the burning of biomass in developing countries are well established. Few studies have quantitatively assessed improved cookstoves and examined these measures relation health effects. We conducted a cross-sectional survey among 79 Honduran women cooking with traditional or cookstoves. Carbon monoxide fine particulate matter (PM(2.5)) were via personal monitoring. Pulmonary function respiratory symptoms ascertained. Finger-stick blood spot samples...
Previous studies have reported that livestock-handling injuries are among the most severe of agricultural injuries. This study identifies costs, characteristics, and contributing factors associated with Colorado dairy farmers, cattle/livestock raisers, cattle dealers.A 10-year (1997-2006) history Colorado's workers' compensation claims data was used for analysis. Descriptive analyses injury were performed. Claim cost analysis also conducted. The agent-host-environment epidemiological model...
Growing evidence links household air pollution exposure from biomass cookstoves with elevated blood pressure. We assessed cross-sectional associations of 24-hour mean concentrations personal and kitchen fine particulate matter (PM2.5 ), black carbon (BC), stove type pressure, adjusting for confounders, among 147 women using traditional or cleaner-burning Justa stoves in Honduras. investigated effect modification by age body mass index. Traditional users had (standard deviation) PM2.5 126...
The aims of this study were to characterize physical, mechanical, and environmental factors influencing indoor quality (IEQ) in commercial office buildings; document occupant perceptions psychosocial attributes; evaluate relationships among these parameters. Six large buildings metropolitan areas selected Iowa, Minnesota, Nebraska. Comprehensive sampling was conducted over one week each building, during all four seasons. This paper presents the methods results from first round (November 1996...
Objective: The objective of this study was to assess respiratory outcomes and environmental exposure levels workers in cage-housed floor-housed poultry operations. Methods: Poultry operations were evaluated for total dust, endotoxin, ammonia, symptoms lung function tests conducted. Results: Workers had significantly greater exposures dust whereas from reported frequency current chronic overall phlegm (39% vs 18% 40% 11%, respectively). Endotoxin concentration (EU/mg) a significant predictor...
Few studies have evaluated the cardiovascular-related effects of indoor biomass burning or role characteristics such as age and obesity status, in this relationship. We examined impact a cleaner-burning cookstove intervention on blood pressure among Nicaraguan women using an open fire at baseline; we also heterogeneity by subgroups population. changes systolic diastolic from baseline to post-intervention (range: 273–383 days) 74 female cooks. measured fine particulate matter (PM2.5; N = 25),...
As a potent inflammatory agent, endotoxin is key analyte of interest for studies lung ailments in domestic environments and occupational settings with organic dust. A relatively unexplored advance exposure assessment the use recombinant factor C (rFC) from Limulus pathway fluorometric assay. In this study, we compared airborne concentrations laboratory- field-collected parallel air samples using kinetic amebocyte lysate (LAL) assay rFC Air sampling was performed paired Institute Occupational...
The Kevkuk County Rural Health Study (KCRHS) was designed as a 20‐year, prospective cohort study focusing on chronic disease and injury in an agricultural southeastern Iowa county. goals of the KCRHS are to prospectively describe, measure, analyze prevalent rural agriculturally related adverse health outcomes their respective risk factors provide basis for future community‐based intervention programs reduce incidence. Methods data collection included in‐person interviews, medical screenings,...