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1.
Emerg Infect Dis ; 30(13): S62-S67, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38561843

RESUMO

We reviewed data obtained in October 2021-May 2023 from youth who reported a history of sexual activity upon admission to 1 of 12 juvenile justice facilities in Utah, USA, that offered screening for Chlamydia trachomatis and Neisseria gonorrhoeae. Urinalysis revealed C. trachomatis positivity of 10.77%, N. gonorrhoeae positivity of 1.08%, and coinfection C. trachomatis N. gonorrhoeae) of 0.90%. Prevalence of infection was similar for youths in rural and urban facilities. A total of 12.01% of those identifying as male and 14.01% of those identifying as female tested positive for C. trachomatis, N. gonorrhoeae, or coinfection. Of young adults who tested positive, 74.65% received their results while incarcerated, all of whom accepted treatment. Our research underscores the feasibility of providing prompt C. trachomatis/N. gonorrhoeae screening and treatment in juvenile correctional facilities. The pervasiveness of infection emphasizes the urgent need for early identification and treatment for C. trachomatis and N. gonorrhoeae in incarcerated youth nationwide.


Assuntos
Infecções por Chlamydia , Coinfecção , Gonorreia , Adulto Jovem , Adolescente , Masculino , Feminino , Humanos , Gonorreia/diagnóstico , Gonorreia/epidemiologia , Gonorreia/prevenção & controle , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/epidemiologia , Utah/epidemiologia , Coinfecção/epidemiologia , Neisseria gonorrhoeae , Chlamydia trachomatis , Estabelecimentos Correcionais , Prevalência , Programas de Rastreamento/métodos
3.
Front Public Health ; 12: 1358043, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38660351

RESUMO

Introduction: Suicide death remains a significantly rarer event among Latina/o/x populations compared to non-Latina/o/x populations. However, the reasons why Latina/o/x communities experience relatively lower suicide rates are not fully understood. Critical gaps exist in the examination of Latina/o/x suicide death, especially in rural settings, where suicide death by firearm is historically more common within non-Latina/o/x populations. Method: We tested whether the prevalence of Latina/o/x firearm suicide was meaningfully different in urban and rural environments and from non-Latino/a/x decedents when controlling for age, sex, and a social deprivation metric, the Area Deprivation Index. Suicide death data used in this analysis encompasses 2,989 suicide decedents ascertained in Utah from 2016 to 2019. This included death certificate data from the Utah Office of the Medical Examiner on all Utah suicide deaths linked to information by staff at the Utah Population Database. Results: Compared to non-Latina/o/x suicide decedents, Latina/o/x suicide decedents had 34.7% lower adjusted odds of dying by firearm. Additionally, among the firearm suicide decedents living only in rural counties, Latina/o/x decedents had 40.5% lower adjusted odds of dying by firearm compared to non-Latina/o/x suicide decedents. Discussion: The likelihood of firearm suicide death in Utah differed by ethnicity, even in rural populations. Our findings may suggest underlying factors contributing to lower firearm suicide rates within Latina/o/x populations, e.g., aversion to firearms or less access to firearms, especially in rural areas, though additional research on these phenomena is needed.


Assuntos
Armas de Fogo , Hispânico ou Latino , População Rural , Suicídio , Humanos , Feminino , Utah/epidemiologia , Masculino , Hispânico ou Latino/estatística & dados numéricos , População Rural/estatística & dados numéricos , Adulto , Pessoa de Meia-Idade , Armas de Fogo/estatística & dados numéricos , Suicídio/estatística & dados numéricos , Idoso , Adolescente , Adulto Jovem , População Urbana/estatística & dados numéricos , Médicos Legistas/estatística & dados numéricos , Prevalência
4.
J Health Care Poor Underserved ; 35(1): 186-208, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38661866

RESUMO

OBJECTIVES: This study evaluated how high versus low-intensity community wellness coaching and health behaviors were associated with changes in depression screen results over one year. METHODS: This was an analysis of secondary data collected in a 12-month obesity-related community health worker (CHW) program for 485 Utah women of color. Depression screen (Patient Health Questionnaire-2 score ³3) and self-reported fruit/vegetable consumption and physical activity (FV/PA) were recorded quarterly. Associations between FV/PA and changes in depression screen over time were evaluated in multivariable models. RESULTS: Positive depression screen prevalence declined over 12 months (21.7% to 9.5%) with no difference between study arms. Overall, FV ³5 times/day (AOR=1.5; 95% CI 1.0-2.2), any PA (AOR=3.1; 95% CI 1.5-6.4), and muscle strengthening activities (AOR=1.13; 95% CI 1.01-1.26) were associated with improved depression screen results over time. CONCLUSION: These results indicate value in addressing and evaluating depression in obesity-related interventions in underserved communities.


Assuntos
Agentes Comunitários de Saúde , Depressão , Exercício Físico , Comportamentos Relacionados com a Saúde , Obesidade , Humanos , Feminino , Utah/epidemiologia , Obesidade/prevenção & controle , Obesidade/epidemiologia , Adulto , Depressão/epidemiologia , Depressão/prevenção & controle , Pessoa de Meia-Idade , Tutoria , Adulto Jovem , Promoção da Saúde/métodos , Promoção da Saúde/organização & administração
5.
Commun Biol ; 7(1): 329, 2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38485764

RESUMO

Optogenetics has transformed studies of neural circuit function, but remains challenging to apply to non-human primates (NHPs). A major challenge is delivering intense, spatiotemporally-precise, patterned photostimulation across large volumes in deep tissue. Such stimulation is critical, for example, to modulate selectively deep-layer corticocortical feedback circuits. To address this need, we have developed the Utah Optrode Array (UOA), a 10×10 glass needle waveguide array fabricated atop a novel opaque optical interposer, and bonded to an electrically addressable µLED array. In vivo experiments with the UOA demonstrated large-scale, spatiotemporally precise, activation of deep circuits in NHP cortex. Specifically, the UOA permitted both focal (confined to single layers/columns), and widespread (multiple layers/columns) optogenetic activation of deep layer neurons, as assessed with multi-channel laminar electrode arrays, simply by varying the number of activated µLEDs and/or the irradiance. Thus, the UOA represents a powerful optoelectronic device for targeted manipulation of deep-layer circuits in NHP models.


Assuntos
Neurônios , Optogenética , Animais , Eletrodos , Neurônios/fisiologia , Primatas/fisiologia , Utah
6.
Cancer Med ; 13(5): e7058, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38477496

RESUMO

INTRODUCTION: Patients living in rural areas have worse cancer-specific outcomes. This study examines the effect of family-based social capital on genitourinary cancer survival. We hypothesized that rural patients with urban relatives have improved survival relative to rural patients without urban family. METHODS: We examined rural and urban based Utah individuals diagnosed with genitourinary cancers between 1968 and 2018. Familial networks were determined using the Utah Population Database. Patients and relatives were classified as rural or urban based on 2010 rural-urban commuting area codes. Overall survival was analyzed using Cox proportional hazards models. RESULTS: We identified 24,746 patients with genitourinary cancer with a median follow-up of 8.72 years. Rural cancer patients without an urban relative had the worst outcomes with cancer-specific survival hazard ratios (HRs) at 5 and 10 years of 1.33 (95% CI 1.10-1.62) and 1.46 (95% CI 1.24-1.73), respectively relative to urban patients. Rural patients with urban first-degree relatives had improved survival with 5- and 10-year survival HRs of 1.21 (95% CI 1.06-1.40) and 1.16 (95% CI 1.03-1.31), respectively. CONCLUSIONS: Our findings suggest rural patients who have been diagnosed with a genitourinary cancer have improved survival when having relatives in urban centers relative to rural patients without urban relatives. Further research is needed to better understand the mechanisms through which having an urban family member contributes to improved cancer outcomes for rural patients. Better characterization of this affect may help inform policies to reduce urban-rural cancer disparities.


Assuntos
Neoplasias , Neoplasias Urogenitais , Humanos , População Urbana , Neoplasias/epidemiologia , Modelos de Riscos Proporcionais , Utah/epidemiologia , População Rural
7.
J Speech Lang Hear Res ; 67(2): 415-428, 2024 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-38306500

RESUMO

PURPOSE: The aim of the present study was to develop and validate a patient-reported outcome measure for gender incongruence specific to voice and communication parameters, including pitch, intonation, resonance, loudness, speech smoothness, speech clarity, word choice, facial expression, gesture, and posture. METHOD: The Utah Gender Presentation Scale for Communication (U-GPS) includes 10 items, each on a 10-point scale from masculine to feminine. Items were selected based on literature review and patient focus groups. During test administration, respondents provide their current rating and goal rating for each item. The difference between these scores is used to calculate an overall incongruence score. Prospective data from transgender and gender-diverse (n = 155) and cisgender (n = 69) individuals were then used for a multiparametric psychometric evaluation of the measure. RESULTS: Findings demonstrate excellent levels of internal consistency (Cronbach's alpha for current scores: α = .943; Cronbach's alpha for goal scores: α = .970), test-retest reliability (intraclass correlation coefficient = .905), longitudinal validity (improvement in therapy for trans women: F = 293.0, p < .001; nonbinary folx: F = 80.9, p < .001), concurrent validity (correlation with the Trans Woman Voice Questionnaire: r = .51, p < .001), and known-group expectations (differences among five gender groups: F = 82.7, p < .001). CONCLUSION: The U-GPS is a meaningful measure of voice-related gender incongruence, which is clinically relevant for assessing goals in gender-affirming voice and communication therapy for individuals across the gender spectrum.


Assuntos
Comunicação , Identidade de Gênero , Humanos , Feminino , Reprodutibilidade dos Testes , Estudos Prospectivos , Utah , Inquéritos e Questionários , Psicometria
8.
PLoS One ; 19(2): e0296461, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38324520

RESUMO

The COVID-19 pandemic disrupted scientific research, teaching, and learning in higher education and forced many institutions to explore new modalities in response to the abrupt shift to remote learning. Accordingly, many colleges and universities struggled to provide the training, technology, and best practices to support faculty and students, especially those at historically disadvantaged and underrepresented institutions. In this study we investigate different remote learning modalities to improve and enhance research education training for faculty and students. We specifically focus on Responsible and Ethical Conduct of Research (RECR) and research mentoring content to help address the newly established requirements of the National Science Foundation for investigators. To address this need we conducted a workshop to determine the effectiveness of three common research education modalities: Live Lecture, Podcast, and Reading. The Live Lecture sessions provided the most evidence of learning based on the comparison between pre- and post-test results, whereas the Podcast format was well received but produced a slight (and non-significant) decline in scores between the pre- and post-tests. The Reading format showed no significant improvement in learning. The results of our workshop illuminate the effectiveness and obstacles associated with various remote learning modalities, enabling us to pinpoint areas that require additional refinement and effort, including the addition of interactive media in Reading materials.


Assuntos
Pandemias , Estudantes , Humanos , Utah , Docentes , Currículo
9.
J Manag Care Spec Pharm ; 30(2): 112-117, 2024 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-38308630

RESUMO

BACKGROUND: Insulin affordability is a huge concern for patients with diabetes in the United States. On March 30, 2020, Utah signed House Bill 207 into law, aimed at capping copayments for insulin at $30 for a 30-day supply. The bill was enacted on January 1, 2021. OBJECTIVE: To assess patient basal insulin adherence, out-of-pocket costs, health plan costs, total costs on insulin, and hemoglobin A1c (A1c) in prepolicy vs postpolicy periods. METHODS: This study is a retrospective analysis using data from a regional health plan in Utah from October 1, 2019, to September 30, 2021. Inclusion criteria were fully enrolled members of all ages, under commercial insurance, with at least 1 fill for any type of insulin in both the preperiod and the postperiod. Adherence was measured by proportion of days covered (PDC). Paired t-tests and Wilcoxon sign rank tests were conducted to compare the health and economic outcomes. RESULTS: Out of 24,150 commercially insured individuals, a total of 244 patients were included. Across all 244 patients, there was a significant decline in monthly median out-of-pocket costs of insulin by 58.5% (P < 0.001), whereas the monthly median health plan costs of insulin increased by 22.0% (P < 0.001). The total monthly costs of insulin (the sum of out-of-pocket and health plan costs) were unchanged (P = 0.115). Only 74 patients with enough basal insulin fills in both periods were included in the analysis for PDC changes. PDC change was not statistically significant (P = 0.43). Among the 74 patients with PDC calculations, 29 patients had A1c recorded in both periods. The change in A1c was not statistically significant (P = 0.23). CONCLUSIONS: An insulin copayment max of $30 in Utah demonstrated lower patient out-of-pocket costs, subsidized by the health plan. PDC did not change, and HbA1c did not improve. An assessment of a longer period and on a larger population is needed.


Assuntos
Diabetes Mellitus Tipo 2 , Insulina , Humanos , Hemoglobinas Glicadas , Hipoglicemiantes/economia , Hipoglicemiantes/uso terapêutico , Insulina/economia , Insulina/uso terapêutico , Adesão à Medicação , Políticas , Estudos Retrospectivos , Estados Unidos , Utah
11.
J Appl Gerontol ; 43(2): 215-223, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38064224

RESUMO

In 2011, Utah began requiring that drivers aged 65 years and older pass a vision test at each license renewal. This study aims to investigate if the mandatory vision test associated with motor vehicle fatality and injury rates in older road users. We fit controlled interrupted time series analysis models to compare fatality and injury rates for older adults (65+) affected by the law to younger adults (45-64) unaffected by the law. The models yielded estimates of differential level and slope changes in fatality and injury rates, which we used to estimate policy associations. We did not find evidence that implementing an accelerated vision test for older adults in Utah was associated with a reduction in injury or fatality rates among older (65+) drivers and non-drivers relative to those aged 45-64. Other strategies might be considered to prevent fatal motor vehicle crashes (MVCs) in older adults.


Assuntos
Condução de Veículo , Humanos , Idoso , Utah/epidemiologia , Acidentes de Trânsito , Testes Visuais , Políticas
12.
J Air Waste Manag Assoc ; 74(2): 116-130, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38051007

RESUMO

We investigated the impact of wildfires on maximum daily 8-hr average ozone concentrations (MDA8 O3) at four sites in Salt Lake City (SLC), Utah for May to September for 2006-2022. Smoke days, which were identified by a combination of overhead satellite smoke detection and surface PM2.5 data and accounted for approximately 9% of the total number of days, exhibited O3 levels 6.8 to 8.9 ppb higher than no-smoke days and were predominantly characterized by high daily maximum temperatures and low relative humidity. A Generalized Additive Model (GAM) was developed to quantify the impact of wildfire contributions to O3. The GAM, which provides smooth functions that make the interpretation of relationships more intuitive, employed 17 predictors and demonstrated reliable performance in various evaluation metrics. The mean of the residuals for all sites was approximately zero for the training and cross-validation data and 5.1 ppb for smoke days. We developed three approaches to estimate the contribution of smoke to O3 from the model residuals. These generate a minimum and maximum contribution for each smoke day. The average of the minimum and maximum wildfire contributions to O3 for the SLC sites was 5.1 and 8.5 ppb, respectively. Between 2006 and 2022, an increasing trend in the wildfire contributions to O3 was observed in SLC. Moreover, trends of the fourth-highest MDA8 O3 before and after removing the wildfire contributions to O3 at the SLC Hawthorne site in 2006-2022 were quite different. Whereas the unadjusted data do not meet the current O3 standard, after removing the contributions from wildfires the SLC region is close to achieving levels that are consistent with meeting the O3 standard. We also found that the wildfire contribution during smoke days was particularly high under conditions of high temperature, high PM2.5 concentration, and low cloud fraction.Implications: In this study, we quantified the impact of wildfires on maximum daily 8-hr average ozone concentrations (MDA8 O3) in Salt Lake City, Utah, using a Generalized Additive Model (GAM). The GAM results demonstrate the importance of wildfires as contributors to O3 air pollution. Our results suggest that states could use the GAM approach to assist in quantifying the wildfire contribution to MDA8 O3 under the U.S. EPA exceptional events rule. These findings also highlight the need for strategies to manage wildfires and their subsequent impacts on air quality in an era of climate warming.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , Ozônio , Incêndios Florestais , Fumaça , Ozônio/análise , Poluentes Atmosféricos/análise , Utah , Poluição do Ar/análise , Material Particulado/análise
13.
J Hosp Palliat Nurs ; 26(2): 91-97, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37976394

RESUMO

Health care for the homeless population is a complex challenge and represents a significant gap in care, particularly for those at the end of life. Hospice care may be desired but is rarely an option for people without residences, social support, and payment sources. Social model hospice is a unique paradigm of care delivery that offers a viable solution to make hospice and palliative care possible for this population. In this historical report from interviews with early organizers, prior and current leadership (n = 6), the evolution of The INN Between in Salt Lake City, Utah, is described. In 2010, The INN Between was conceptualized as a nonprofit community effort addressing this need to provide an alternative to people dying unsheltered. After 5 years of planning, it opened in 2015 and has grown to become a comprehensive community resource for homeless medically frail and terminally ill individuals. Recommendations for establishing social model hospices are made: key strategies include identifying stakeholders dedicated to alleviating end-of-life homelessness needs, doing a formal needs assessment to identify community resource deficits, and forming mentoring relationships with established programs. Social model hospice is a viable way of meeting the end-of-life needs of many communities' most vulnerable residents.


Assuntos
Cuidados Paliativos na Terminalidade da Vida , Hospitais para Doentes Terminais , Pessoas Mal Alojadas , Humanos , Cuidados Paliativos , Utah , Morte
14.
Contraception ; 130: 110328, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37977429

RESUMO

OBJECTIVES: This study aimed to understand how the Dobbs decision impacted graduating resident physicians in Utah and to understand residents' perspectives on abortion access. STUDY DESIGN: We invited all 2023 graduating residents at the University of Utah, from all specialties, to participate in this survey. We analyzed univariate relationships between respondent demographics and change of career plans post-Dobbs. We also performed a thematic analysis of free text responses. RESULTS: We received responses from 85 residents (55% of all graduating residents from the University of Utah) representing 19 specialties. Six (7%) residents changed their practice location due to the Dobbs decision. Most residents supported and wanted to advocate for legal abortion. In a thematic analysis, many graduating residents do not want to live in an abortion-restrictive state. CONCLUSIONS: The Dobbs decision impacts physicians across all specialties, not just obstetrician/gynecologists. IMPLICATIONS: Future research into the impact of the Dobbs decision should include physicians of all specialties.


Assuntos
Aborto Induzido , Internato e Residência , Médicos , Feminino , Gravidez , Humanos , Estados Unidos , Utah , Aborto Legal , Decisões da Suprema Corte
17.
Toxins (Basel) ; 15(11)2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37999522

RESUMO

The Great Salt Lake in Utah is the largest saline lake in the Western hemisphere and one of the largest terminal lakes in the world. Situated at the eastern edge of the Great Basin, it is a remnant of the freshwater Lake Bonneville whose water level precipitously lowered about 12,000 years ago due to a natural break in Red Rock pass to the north. It contains a diverse assemblage of cyanobacteria which vary spatially dependent on salinity. In 1984, the waters of the Great Salt Lake occupied 8500 km2. Nearly four decades later, the waters occupy 2500 km2-a reduction in surface area of 71%. With predominantly westerly winds, there is a potential for the adjacent metropolitan residents to the east to be exposed to airborne cyanobacteria- and cyanotoxin-containing dust. During the summer and fall months of 2022, air and dried sediment samples were collected and assessed for the presence of BMAA which has been identified as a risk factor for ALS. Collection of air samples equivalent to a person breathing for 1 h resulted in BMAA and isomers being found in some air samples, along with their presence in exposed lakebed samples. There was no clear relationship between the presence of these toxins in airborne and adjacent lakebed samples, suggesting that airborne toxins may originate from diffuse rather than point sources. These findings confirm that continued low water levels in the Great Salt Lake may constitute an increasing health hazard for the 2.5 million inhabitants of communities along the Wasatch Front.


Assuntos
Cianobactérias , Lagos , Humanos , Lagos/microbiologia , Água , Utah , Toxinas de Cianobactérias
18.
Sci Rep ; 13(1): 18072, 2023 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-37872309

RESUMO

Long bone fractures are a concern in long-duration exploration missions (LDEM) where crew autonomy will exceed the current Low Earth Orbit paradigm. Current crew selection assumptions require extensive complete training and competency testing prior to flight for off-nominal situations. Analogue astronauts (n = 6) can be quickly trained to address a single fracture pattern and then competently perform the repair procedure. An easy-to-use external fixation (EZExFix) was employed to repair artificial tibial shaft fractures during an inhabited mission at the Mars Desert Research Station (Utah, USA). Bone repair safety zones were respected (23/24), participants achieved 79.2% repair success, and median completion time was 50.04 min. Just-in-time training in-mission was sufficient to become autonomous without pre-mission medical/surgical/mechanical education, regardless of learning conditions (p > 0.05). Similar techniques could be used in LDEM to increase astronauts' autonomy in traumatic injury treatment and lower skill competency requirements used in crew selection.


Assuntos
Fraturas Ósseas , Marte , Voo Espacial , Humanos , Voo Espacial/métodos , Astronautas , Utah
19.
BMJ Open ; 13(9): e073630, 2023 09 13.
Artigo em Inglês | MEDLINE | ID: mdl-37709327

RESUMO

OBJECTIVES: To compare telephone consultations with in-person consultations for the provision of medical abortion (using mifepristone 200 mg and misoprostol 800 µg). We hypothesised that telemedicine consultations would be non-inferior to in-person consultations with a non-inferiority limit of 3%. DESIGN: Randomised controlled trial with 1:1 allocation. SETTING: Community abortion service housed within an integrated sexual and reproductive health service in Edinburgh, UK. PARTICIPANTS: The trial began on 13 January 2020, but was stopped early due to COVID-19; recruitment was suspended on 31 March 2020, and was formally closed on 31 August 2021. A total of 125 participants were randomised, approximately 10% of the total planned, with 63 assigned to telemedicine and 62 to in-person consultation. PRIMARY AND SECONDARY OUTCOME MEASURES: Primary outcome: efficacy of medical abortion, defined as complete abortion without surgical intervention. SECONDARY OUTCOMES: satisfaction with consultation type, preparedness, unscheduled contact with care, complication rate, time spent in clinical contact and uptake of long-acting contraception. RESULTS: Primary outcome was available for 115 participants (lost-to-follow-up telemedicine=2, in-person=8), secondary outcomes were available for 110 participants (n=5 and n=10 in telemedicine and in-person groups did not complete questionnaires). There were no significant differences between groups in treatment efficacy (telemedicine 57/63 (90.5%), in-person 48/62 (77.4%)). However, non-inferiority was not demonstrated (+3.3% in favour of telemedicine, CI -6.6% to +13.3%, lower than non-inferiority margin). There were no significant differences in most secondary outcomes, however, there was more unscheduled contact with care in the telemedicine group (12 (19%) vs 3 (5%), p=0.01). The overall time spent in clinical contact was statistically significantly lower in the telemedicine group (mean 94 (SD 24) vs 111 (24) min, p=0.0005). CONCLUSIONS: Telemedicine for medical abortion appeared to be effective, safe and acceptable to women, with less time spent in the clinic. However, due to the small sample size resulting from early cessation, the study was underpowered to confirm this conclusion. These findings warrant further investigation in larger scale studies. TRIAL REGISTRATION NUMBER: NCT04139382.


Assuntos
Aborto Induzido , Aborto Espontâneo , COVID-19 , Gravidez , Humanos , Feminino , Utah , Encaminhamento e Consulta
20.
Sci Total Environ ; 904: 166231, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-37586530

RESUMO

Long-term (2010-19) water-quality monitoring on the Colorado River downstream from Moab Utah indicated the persistent presence of Bioactive Chemicals (BC), such as pesticides and pharmaceuticals. This stream reach near Canyonlands National Park provides critical habitat for federally endangered species. The Moab wastewater treatment plant (WWTP) outfall discharges to the Colorado River and is the nearest potential point-source to this reach. The original WWTP was replaced in 2018. In 2016-19, a study was completed to determine if the new plant reduced BC input to the Colorado River at, and downstream from, the outfall. Water samples were collected before and after the plant replacement at sites upstream and downstream from the outfall. Samples were analyzed for as many as 243 pesticides, 109 pharmaceuticals, 20 hormones, 51 wastewater indicator chemicals, 20 metals, and 8 nutrients. BC concentrations, hazard quotients (HQs), and exposure activity ratios (EARs) were used to identify and prioritize contaminants for their potential to have adverse biological effects on the health of native and endangered wildlife. There were 22 BC with HQs >1, mostly metals and hormones; and 23 BC with EARs >0.1, mostly hormones and pharmaceuticals. Most high HQs or EARs were associated with samples collected at the WWTP outfall site prior to its replacement. Discharge from the new plant had reduced concentrations of nutrients, hormones, pharmaceuticals, and other BC. For example, all 16 of the hormones detected at the WWTP outfall site had maximum concentrations in samples collected prior to the WWTP replacement. The WWTP replacement had less effect on instream concentrations of metals and pesticides, BC whose sources are less directly tied to domestic wastewater. Study results indicate that improved WWTP technology can create substantial reductions in concentrations of non-regulated BC such as pharmaceuticals, in addition to regulated contaminants such as nutrients.


Assuntos
Praguicidas , Poluentes Químicos da Água , Purificação da Água , Águas Residuárias , Colorado , Utah , Monitoramento Ambiental , Poluentes Químicos da Água/análise , Água , Praguicidas/análise , Hormônios , Preparações Farmacêuticas
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