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1.
J Int Assoc Provid AIDS Care ; 23: 23259582241242703, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38545687

RESUMO

Cognitive health is a significant concern for people aging with HIV/AIDS. Psychosocial group therapies may help people aging with HIV who experience cognitive challenges cope with their symptoms. The COVID-19 pandemic revealed in-person group therapies need adaptation for technology-mediated delivery. Peer-led focus groups discussed adapting cognitive remediation group therapy (CRGT) as an online intervention. CRGT combines mindfulness-based stress reduction and brain training activities. Purposive sampling recruited people aging with HIV (40+) who self-identified cognitive concerns and resided in one of two Canadian provinces. Thematic content analysis was employed on transcripts by seven independent coders. Ten, 2-hour focus groups were conducted between August and November 2022. Participants (n=45) responded favorably to CRGT's modalities. Alongside support for its continued implementation in-person, participants requested online synchronous and online asynchronous formats. Preferred intervention facilitators were peers and mental health professionals. We also discuss how to adapt psychosocial HIV therapies for technology-mediated delivery.


Changing an in-person support group about cognitive health to an online support group via focus group consultations with middle-aged and older adults living with HIV/AIDSCognitive health concerns are common for people living with HIV as they grow older. Support groups may help individuals make connections with each other and develop ways to manage symptoms of cognitive impairment. In-person support groups need to have online adaptations for many reasons, including access for rural and remote communities. We conducted ten focus groups, led by people living with HIV, to discuss how to change an in-person support group to be online. The support group uses mindfulness and brain training activities. Forty-five people over age 40+ who are living with HIV in Ontario and Saskatchewan, Canada, and concerned about cognitive health participated in these focus groups. Seven researchers analysed the focus group transcripts. Participants liked the idea of the support group, both in-person and online. They specifically requested two forms of an online support group: synchronous, where everyone attends together at the same time, and asynchronous, where people attend at different times. This paper discusses how to change other in-person counselling and support group options for HIV to online formats.


Assuntos
Remediação Cognitiva , Infecções por HIV , Psicoterapia de Grupo , Humanos , Grupos Focais , Pandemias , Infecções por HIV/terapia , Infecções por HIV/psicologia , Canadá , Envelhecimento
2.
AIDS Res Ther ; 20(1): 86, 2023 12 09.
Artigo em Inglês | MEDLINE | ID: mdl-38071351

RESUMO

BACKGROUND: In 2016, the Canada-International HIV and Rehabilitation Research Collaborative established a framework of research priorities in HIV, aging and rehabilitation. Our aim was to review and identify any new emerging priorities from the perspectives of people living with HIV, clinicians, researchers, and representatives from community organizations. METHODS: We conducted a multi-stakeholder international consultation with people living with HIV, researchers, clinicians and representatives of community-based organizations. Stakeholders convened for a one-day Forum in Manchester, United Kingdom (UK) to discuss research priorities via a web-based questionnaire and facilitated discussions. We analyzed data using conventional content analytical techniques and mapped emerging priorities onto the foundational framework. RESULTS: Thirty-five stakeholders from the UK(n = 29), Canada(n = 5) and Ireland(n = 1) attended the Forum, representing persons living with HIV or representatives from community-based organizations(n = 12;34%), researchers or academics(n = 10;28%), service providers(n = 6;17%), clinicians(n = 4;11%); and trainees(n = 4;11%). Five priorities mapped onto the Framework of Research Priorities across three content areas: A-Episodic Health and Disability Aging with HIV (disability, frailty, social participation), B-Rehabilitation Interventions for Healthy Aging across the Lifespan (role, implementation and impact of digital and web-based rehabilitation interventions) and C-Outcome Measurement in HIV and Aging (digital and web-based rehabilitation health technology to measure physical activity). Stakeholders indicated methodological considerations for implementing digital and web-based rehabilitation interventions into research and practice and the importance of knowledge transfer and exchange among the broader community. CONCLUSION: Results highlight the sustained importance of the Framework of Research Priorities and provide further depth and areas of inquiry related to digital and web-based rehabilitation interventions and technology aging with HIV.


Assuntos
Infecções por HIV , Pesquisa de Reabilitação , Humanos , Envelhecimento , Inquéritos e Questionários , Canadá
3.
Syst Rev ; 12(1): 184, 2023 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-37777815

RESUMO

BACKGROUND: Heterosexually identified men who have sex with men (H-MSM) are distinct from other heterosexual men and from gay, bisexual, and other sexual minority men. Specifically, H-MSM experience discordance between their sexual identity (i.e., heterosexual) and behaviours (i.e., sexual encounters with other men). This sexual identity-behaviour discordance can create barriers to obtaining healthcare and social support. Understanding and accepting H-MSM as they self-identify may be necessary to implement effective public health and psychosocial interventions. The aim of the present study is to provide an overview of research on H-MSM. METHODS: A scoping review will be conducted to identify and describe the identity development, attraction, and behaviour of H-MSM. This scoping review will also identify and describe current trends related to the recruitment of H-MSM and recommend directions for future research. Searches will be conducted in Academic Search Complete, APA PsychInfo, CINAHL Plus with full text, Education Research Complete, Gender Studies Database, GenderWatch, Health Source: Nursing/Academic Edition, LGBTQ + Source, MEDLINE, Psychology and Behavioral Sciences Collection, SocINDEX with full text, Sociological Collection, Social Work Abstracts, ProQuest Dissertations and Theses, and ResearchGate. Primary research studies published in peer-reviewed journals will be included. Dissertations and theses that include primary research on H-MSM will also be included. Reference lists, experts in the field, preprint servers, and relevant conferences will also be consulted for extant and in-progress literature. Two reviewers will independently pilot the data extraction form and conduct the title and abstract screening, with consultation from a research librarian. Seven reviewers will then conduct the full-text article screening. Thematic content analysis will guide the review; through independent review and reviewer meetings, themes and subthemes will be identified and reported from the extracted literature. DISCUSSION: This is the first known knowledge synthesis on H-MSM, seeking to better understand sexual identity-behaviour discordance amongst cisgender men. We anticipate that a theoretical framework of H-MSM's sexuality, internal processes, and behaviours will be constructed from this review. Alongside implications for further research with H-MSM, this review may be relevant to sexually transmitted infection public health and to clinicians working in the field of male sexuality. SYSTEMATIC REVIEW REGISTRATION: Open Science Framework: https://doi.org/10.17605/OSF.IO/MVY9H.


Assuntos
Minorias Sexuais e de Gênero , Infecções Sexualmente Transmissíveis , Masculino , Humanos , Homossexualidade Masculina/psicologia , Comportamento Sexual , Heterossexualidade/psicologia , Literatura de Revisão como Assunto
4.
Clin Trials ; 20(2): 176-180, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36924070

RESUMO

Cognitive impairment is a common comorbidity among individuals aging with HIV, which can be an extreme source of stress and anxiety for many. Psychosocial interventions have the potential to alleviate symptoms associated with cognitive impairment and help improve the quality of life of people with HIV as they continue to age; these interventions are in the infancy of development and require further testing via clinical trials. The slow development of interventions may be partially attributed to a common trend of requiring a formal HIV-associated neurocognitive disorder diagnosis to qualify for psychosocial clinical trials. HIV-associated neurocognitive disorder is diagnosed through intensive, time-consuming tests, and still many cases of HIV-associated neurocognitive disorder remain undiagnosed, misdiagnosed, or misclassified due to the limitations of the assessment process. This commentary suggests an alternate method of screening for cognitive impairments through the use of a brief, low-barrier assessment, alongside validity considerations. Such alternate screening may improve enrollment and completion rates in psychosocial clinical trials for people aging with HIV and cognitive impairment, by removing the burden of extensive testing that is commonly associated with an HIV-associated neurocognitive disorder diagnosis from clinical trial eligibility, while still providing valuable insight into individuals' cognitive functioning.


Assuntos
Disfunção Cognitiva , Infecções por HIV , Humanos , Qualidade de Vida , Infecções por HIV/complicações , Envelhecimento/psicologia , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/terapia , Cognição
5.
J Homosex ; 70(7): 1364-1385, 2023 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35119974

RESUMO

Embodiment refers to understanding the body as the object and subject of culture, a process that allows an understanding of political, cultural, social, and emotional processes in the assemblage of a particular identity. We describe a qualitative-narrative study utilizing focus groups and interviews in three Mexican cities with 75 LGBTQ+ youth to understand the effects of discrimination and how this impacts subjectivity through embodied affection. Through axial and line-by-line analysis, we describe the process of embodiment through four dimensions: violence, emotions, agency, and materiality. Violence operates as the sediment for LGBTQ+ youth's subjective, social, and political life, and paves the way for particular emotions, such as guilt, shame, fear, sadness, and pain, that directly relates to material aspects such as gender expression and body presentation, beauty standards and a discourse around perversion and promiscuity. Finally, the combination of emotions and materiality prove relevant for certain expressions of agency and resilience.


Assuntos
Minorias Sexuais e de Gênero , Humanos , Adolescente , Emoções , Identidade de Gênero , Pesquisa Qualitativa , Grupos Focais
6.
Int J Qual Stud Health Well-being ; 16(1): 1961572, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34375157

RESUMO

PURPOSE: Sexual and gender minority youth (SGMY) experience unique challenges related to identity and disclosure, and cope in vibrant ways. Qualitative research has not yet fulsomely explored the risk, resilience, and identity intersections that impact vulnerable SGMY wellbeing. Methods: This digital photo-elicitation study (QueerView) recruited thirty SGMY (aged 14-29) from priority populations that had one or more of the following experiences:  trans and gender diverse, homelessness, child welfare, and immigration. From submission of fifteen photos representing resilience and a semi-structured interview via web conferencing, constructivist grounded theory was utilized for multimodal analysis of photos, interview video, and interview transcript. Triangulation, an audit trail, and member checking were employed to support trustworthiness. Results: A visual model emerged showing how participants work towards an integrative self, with themes of reflecting and knowing, discrimination and intersectional challenges, connecting, performing, curating, coping, (re)defining and (re)creating, growing and being. Sub-themes of the impact of family dynamic and values, mental health and trauma, and the cathartic benefit from advocacy and leadership offered insight. Participant images were captured in a digital gallery. Conclusions: QueerView animates the complex lives of multiply marginalized SGMY and their intersectional strengths and challenges while demonstrating the utility of a digital multimodal approach.


Assuntos
Minorias Sexuais e de Gênero , Adolescente , Criança , Identidade de Gênero , Humanos , Saúde Mental , Grupos Populacionais , Comportamento Sexual
7.
Prog Community Health Partnersh ; 15(2): 225-60, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34248066

RESUMO

BACKGROUND: Since many people now live with human immunodeficiency virus (HIV) as a complex, chronic health condition that may require frequent medical and psychosocial services, a potential new role for HIV-positive peers involves support during an inpatient admission that extends past discharge to improve the transition home from hospital. We sought to begin outlining scope of peer support in complex HIV care, by detailing a training curriculum alongside experiences and recommendations by Peer Volunteers. METHODS: A community-clinical partnership designed a personalized peer intervention for people living with HIV who were acutely hospitalized and struggling with antiretroviral adherence and substance use. Five Peer Volunteers delivered the program, which involved being matched with a participant for a pre-discharge in-person meeting followed by frequent phone contact in the 7 weeks following discharge. A 4-day peer training focused on active listening, structuring a call, use of self, boundaries, and facilitating program closure. The curriculum was informed by theories of change, motivational interviewing, and simulation. Peer Volunteers participated in pre-match and post-match interviews with peer researchers (also living with HIV). Thematic analysis was employed by four independent coders to understand how prepared peers were and areas for program improvement. CONCLUSIONS: Peers verified participant feelings and affirmed their experiences, followed-up on participant goals to track progress, disclosed their own relevant experiences to build rapport, and facilitated closure to enable program success. Peers struggled maintaining an emotional connection over the phone and were concerned when participants were nonresponsive. This article discusses how the training was piloted and adapted for practice.


Assuntos
Infecções por HIV , Alta do Paciente , Pesquisa Participativa Baseada na Comunidade , Infecções por HIV/terapia , Hospitais , Humanos , Grupo Associado
8.
Arch Sex Behav ; 50(8): 3853-3863, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34136992

RESUMO

While often included in the spectrum of sexual minority identities, asexuality receives comparatively little attention. Awareness and understanding remains limited, and knowledge has been generated primarily from adult populations. This paper employs a sample of 711 self-identified asexual youth (aged 14-24, M = 17.43 years) who identified as members of the LGBTQ+ community to consider the implications of a number of different areas for service provision. Two-thirds (66.8%) of participants identified as gender minorities within the spectrum of transgender and non-binary identities. Findings include aspects of participants' LGBTQ+ developmental processes, including that only 14.3% had disclosed their LGBTQ+ status to everyone in their lives. However, just 2.4% had disclosed to no one. Their attraction and sexual activity were also explored, with 27.1% having never experienced any kind of romantic or sexual attraction and 20.6% having ever been sexually active. Findings regarding participants' accessing of LGBTQ+ health information and engagement in a range of offline and online LGBTQ+ community activities are also provided. Participants acquired more health information online than offline-including sexual health information. Recommendations for service provision, particularly implications for sexual health and Internet-based services, are discussed.


Assuntos
Saúde Sexual , Minorias Sexuais e de Gênero , Pessoas Transgênero , Adolescente , Adulto , Identidade de Gênero , Humanos , Internet , Comportamento Sexual
9.
BMC Psychol ; 9(1): 94, 2021 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-34099063

RESUMO

OBJECTIVE: This study tested the efficacy of AFFIRM, a brief affirmative cognitive-behavioural group intervention tailored to reduce psychosocial distress and improve coping among sexual and gender minority adolescents and young adults (SGMY). METHOD: SGMY (n = 138; M age = 22.44) were allocated to immediate 8-week AFFIRM intervention delivered at 12 community-based organisations or an 8-week waitlisted control. At baseline, post-intervention or post-waitlist, participants completed self-reported assessments of depression, hope, coping, and stress appraisal. Implementation outcomes of feasibility and acceptability were also assessed. RESULTS: Compared to waitlist, SGMY in the intervention condition significantly reduced their depressive symptoms (b = - 5.79, p = .001) as well as increased reports of hope (agency: b = 0.84, p = .001; pathway: b = 0.79, p = .001), and coping by emotional support (b = 0.59, p < .001), instrumental support (b = 0.67, p < .001), positive framing (b = 0.59, p < .001), humour (b = 0.36, p = .014), planning (b = 0.49, p < .001) as well as reflective coping (b = 0.27, p = .009). Intervention participants were also less likely to perceive stress as a threat (b = - 0.43, p = .001), and more likely to perceive stress as challenge (b = 0.67, p < .001) and have the resources to deal with that stress (b = 0.38, p = .016) in comparison to waitlisted control participants. All outcomes had medium to large effect sizes. AFFIRM participants reported low attrition (8.5%) and high levels of engagement and acceptability (e.g. 99% agreed intervention was relevant to their lives). Over 63% of the community organizations that participated in the training hosted AFFIRM at least once during the study. CONCLUSIONS: Results demonstrate efficacy for the community-based implementation of an affirmative clinical intervention designed for SGMY to address depression and foster coping with universal and minority stressors.


Assuntos
Terapia Cognitivo-Comportamental , Psicoterapia de Grupo , Minorias Sexuais e de Gênero , Adolescente , Adulto , Cognição , Humanos , Ontário , Adulto Jovem
10.
JMIR Res Protoc ; 9(11): e20547, 2020 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-33151153

RESUMO

BACKGROUND: The experiences of resilience and intersectionality in the lives of contemporary sexual and gender minority youth (SGMY) are important to explore. SGMY face unique experiences of discrimination in both online and offline environments, yet simultaneously build community and seek support in innovative ways. SGMY who identify as transgender, trans, or gender nonconforming and have experiences with child welfare, homelessness, or immigration have been particularly understudied. A qualitative exploration that leverages technology may derive new understanding of the negotiations of risk, resilience, and identity intersections that impact the well-being of vulnerable SGMY. OBJECTIVE: The objectives of the QueerVIEW study were to (1) enhance understanding of SGMY identities, both online and offline, (2) identify experiences of intersectionality among culturally, regionally, and racially diverse SGMY in Ontario, Canada, (3) explore online and offline sources of resilience for SGMY, and (4) develop and apply a virtual photo elicitation methodological approach. METHODS: This is the first study to pilot a completely virtual approach to a photo elicitation investigation with youth, including data collection, recruitment, interviewing, and analysis. Recruited through social media, SGMY completed a brief screening survey, submitted 10 to 15 digital photos, and then participated in an individual semistructured interview that focused on their photos and related life experiences. Online data collection methods were employed through encrypted online file transfer and secure online interviews. Data is being analyzed using a constructivist grounded theory approach, with six coders participating in structured online meetings that triangulated photo, video, and textual data. RESULTS: Data collection with 30 participants has been completed and analyses are underway. SGMY expressed appreciation for the photo elicitation and online design of the study and many reported experiencing an emotional catharsis from participating in this process. It is anticipated that results will form a model of how participants work toward integrating their online and offline experiences and identities into developing a sense of themselves as resilient. CONCLUSIONS: This protocol presents an innovative, technology-enabled qualitative study that completely digitized a popular arts-based methodology-photo elicitation-that has potential utility for contemporary research with marginalized populations. The research design and triangulated analyses can generate more nuanced conceptualizations of SGMY identities and resilience than more traditional approaches. Considerations for conducting online research may be useful for other qualitative research. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/20547.

11.
J Multidiscip Healthc ; 13: 1133-1142, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33116559

RESUMO

INTRODUCTION: Competencies that integrate research findings and practice expertise are necessary to maintain comprehensive evidence-based practice for allied health professions, such as social work. The context of modern multidisciplinary healthcare, especially in acute or emergency settings, means that an individual clinician may only have a single session with a patient. Maximizing the benefit of single sessions requires advanced competence that extends beyond diagnostics and biomedical treatments to the impact of social systems on health outcomes; multi-level advocacy for reduction of existing health disparities and equity in access to health and mental health services; and "working knowledge" of non-pharmacological treatments. METHODS: This study employed a practice-based research methodology whereby health social workers group coded 32 simulation videos, drawn from an advanced social work practice course, to develop a practice-based competency framework that incorporates these advanced skills. Constructivist grounded theory was employed through a cyclical coding process of viewing video data, identifying and discussing skills and competencies, and summarizing/synthesizing the discussions for critical reflection. RESULTS: The resulting Clinician Group Coding Method utilized systematic and collaborative group coding of practice simulation videos by three clinicians and two researchers to identify relevant competencies for a single session. Emphasis was placed on the progressive phases of single-session patient interactions (eg, joining, working, ending), a practice format that frequently occurs in social work and other allied health professions. These phases include themes of preparing, agenda setting and refining, addressing context, providing education, planning the next steps, and encouraging success. DISCUSSION: The group coding process allowed for immediate discussions and clarifications, supporting the clinicians to synthesize their experiences toward shared understandings of "best practices" in single-session healthcare contexts. This approach facilitated the understanding of critical actions that allied health clinicians could undertake to improve single-session interactions. This practice-based competency framework may have significant utility for multidisciplinary healthcare education and practice.

12.
Child Abuse Negl ; 107: 104623, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32682145

RESUMO

BACKGROUND: Trauma, specifically adverse childhood experiences (ACEs), predicts significant health and mental health disparities, yet there is a paucity of research with LGBTQ + youth. OBJECTIVE: This study explored ACE prevalence in a large sample of LGBTQ+ youth; examined ACE patterns within and across subgroups; and compared results with the general population. PARTICIPANTS AND SETTING: Participant (n = 3,508) ages ranged between 14-18 (x̄ = 16.02) and represented a range of sexual orientations: pansexual (33.9 %), bisexual (26.6 %), and queer (16.2 %), and gender identities: female (39.9 %), non-conforming (38 %), male (14.9 %), and transgender (16.6 %). METHODS: An online cross-sectional survey was conducted with LGBTQ+ youth ages 14-18 that self-identified as LGBTQ+ and resided in the US or Canada. Descriptive statistics generated the prevalence of ACEs, and ANOVAs and post-hoc tests were run for comparisons. RESULTS: Participants reported multiple ACEs (M = 3.14, SD = 2.44) with emotional neglect (58 %), emotional abuse (56 %), and living with a family member with mental illness (51 %) as the most prevalent. Notably, 43 % of participants experienced 4+ ACEs, considered to be a high level of trauma exposure. Compared to national samples, LGBTQ + youth demonstrated unique patterns of ACEs and were higher in 9 of 10 categories. Significantly high (all p < .001) ACEs were found in pansexual (t = 7.67), transgender and gender non-conforming (t = 5.19), American-Indian (t = 6.42), Latinx (t = 2.83) and rural youth (F = 12.12) while those with highly educated parents (F = 83.30, p < .001), lived with a parent (t = 6.02), and in Canada (t = 6.14) reported fewer ACEs. CONCLUSION: LGBTQ+ youth experience significant childhood trauma with potential impact on their mental health. This study identifies implications for trauma-informed practice and research.


Assuntos
Experiências Adversas da Infância/psicologia , Experiências Adversas da Infância/tendências , Saúde Mental/tendências , Minorias Sexuais e de Gênero/psicologia , Inquéritos e Questionários , Adolescente , Adulto , Canadá/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Estados Unidos/epidemiologia , Adulto Jovem
13.
JMIR Res Protoc ; 6(9): e189, 2017 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-28958984

RESUMO

BACKGROUND: Sexual and gender minority youth are a population in peril, exemplified by their disproportionate risk of negative experiences and outcomes. Sexual and gender minority youth may be particularly active users of information and communication technologies (ICTs), and it is important to identify the potential contributions of ICTs to their resilience and well-being. OBJECTIVE: Our aim was to (1) investigate the use of ICTs by sexual and gender minority youth, (2) identify the ways that ICTs influence the resilience and coping of sexual and gender minority youth, focusing on promotion of well-being through self-guided support-seeking (particularly using mobile devices), (3) develop a contextually relevant theoretical conceptualization of resilience incorporating minority stress and ecological approaches, (4) generate best practices and materials that are accessible to multiple interested groups, and (5) identify whether video narratives are a viable alternative to collect qualitative responses in Web-based surveys for youth. METHODS: Mixed methods, cross-sectional data (N=6309) were collected via a Web-based survey from across the United States and Canada from March-July 2016. The sample was generated using a multipronged, targeted recruitment approach using Web-based strategies and consists of self-identified English-speaking sexual and gender minority youth aged 14-29 with technological literacy sufficient to complete the Web-based survey. The survey was divided into eight sections: (1) essential demographics, (2) ICT usage, (3) health and mental health, (4) coping and resilience, (5) sexual and gender minority youth identities and engagement, (6) fandom communities, (7) nonessential demographics, and (8) a video submission (optional, n=108). The option of a 3-5 minute video submission represents a new research innovation in Web-based survey research. RESULTS: Data collection is complete (N=6309), and analyses are ongoing. Proposed analyses include (1) structural equation modeling of quantitative data, (2) grounded theory analysis of qualitative data, and (3) an integrative, mixed methods analysis using a data transformation design. Theoretical and methodological triangulation of analyses integrates an interwoven pattern of results into a comprehensive picture of a phenomenon. Results will be reported in 2017 and 2018. CONCLUSIONS: This research study will provide critical insights into the emerging use of ICTs by sexual and gender minority youth and identify intervention strategies to improve their well-being and reduce risks encountered by this vulnerable population. Implications for practice, research, and knowledge translation are provided.

14.
Water Environ Res ; 79(2): 208-14, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17370847

RESUMO

The choice of wastewater compliance methods used in the United States has been largely prescribed; however, in some cases, this has led to data of unknown or poor quality. This problem is further compounded by the relatively slow regulatory approval process to incorporate discharge-specific method modifications or flexibility to using alternate, potentially better technologies. In this study, a framework is presented, using a performance-based-system approach, which a discharger could use to verify proper use of an alternate or modified method. An example, using two chemical oxygen demand methods (a currently approved method and an alternate method that does not generate hazardous waste) demonstrates that the protocol is simple to use, yet scientifically defensible and effective and that this approach should be readily understandable to both regulators and the regulated community. Our results also suggest that the reference method approach, without associated measurement quality objectives, may yield a false sense of competency with an alternate method.


Assuntos
Fidelidade a Diretrizes , Eliminação de Resíduos Líquidos , Laboratórios , Controle de Qualidade , Reprodutibilidade dos Testes , Estados Unidos
15.
Washington, DC; American Public Health Association; c2005. 1.v p.
Monografia em Inglês | CidSaúde - Cidades saudáveis | ID: cid-61495
16.
Water Res ; 38(12): 2827-38, 2004 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15223276

RESUMO

It is often desirable to quantify both dissolved Cr(VI) and total Cr in samples accurately. Various protocols are now being utilized to quantify the amount of total chromium in natural waters and each of these has possible interferences. This study describes the shortcomings of each method when particulate iron is present in a water sample, and a more rigorous digestion protocol is tested. Data from bench studies as well as a field survey of 21 water utilities are presented. Additionally, field data from several hundred water utility samples are presented to illustrate the potential for incomplete recovery of total chromium using accepted protocols.


Assuntos
Carcinógenos Ambientais/análise , Cromo/análise , Monitoramento Ambiental/métodos , Poluentes da Água/análise , Técnicas de Química Analítica/métodos , Coleta de Dados , Ferro/química , Abastecimento de Água
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