Hargrove William L, Juárez-Carillo Patricia M, Korc Marcelo
Center for Environmental Resource Management, The University of Texas at El Paso, El Paso, TX 79932, USA.
Pan American Health Organization, WHO, Washington, DC 20037, USA.
Int J Environ Res Public Health. 2015 Apr 7;12(4):3864-88. doi: 10.3390/ijerph120403864.
We conducted a Health Impact Assessment (HIA) focused on water and sanitation in Vinton, TX, a small rural town on the U.S./Mexico Border. We present the Vinton HIA as a case study to inform the practice of HIA in rural limited resource communities with higher than average levels of unemployment and poverty, and limited infrastructure. Household surveys, focus groups, and interviews provided quantitative and qualitative data on water sources and quality, sanitation practices, and community health. We found that some of the current water sources in Vinton did not meet drinking water standards for total dissolved solids and arsenic; the majority of septic tanks were not managed properly; and there was a short-term risk of water scarcity due to prolonged drought in the region. Prevalent ailments reported by participants included stomach problems, diarrhea, and skin problems. These ailments can be related to arsenic and/or biological organisms in water. The positive direct and indirect health impacts of improved water and sanitation in Vinton included: reduced gastrointestinal illnesses and skin disorders; improved water quality, quantity, and pressure; reduced risks from failing septic systems; increased property value; potential economic growth; and enhanced quality of life. The negative direct and indirect impacts included: residents' initial and monthly costs; increased property taxes; increased debt by local government; and the need for ongoing support from changing elected decision makers. The unique challenges in completing this HIA included: (a) limited available data; (b) a culture of fear and distrust among residents; (c) residents' lack of education, awareness, and civic discourse regarding water and sanitation issues and their impact on public health; and (d) lack of civic discourse and participation in the democratic process. An important outcome of the HIA was the characterization of local water supplies, which motivated and empowered the community members to become more involved in civic discourse concerning their water supplies. Results are transferable to similar low-income rural communities worldwide where residents are lacking in information about their water supplies and in political "voice".
我们针对德克萨斯州文顿市(位于美国与墨西哥边境的一个小型乡村小镇)的水与卫生设施进行了一次健康影响评估(HIA)。我们将文顿市健康影响评估作为一个案例研究呈现出来,以便为失业率和贫困率高于平均水平且基础设施有限的农村资源匮乏社区的健康影响评估实践提供参考。家庭调查、焦点小组讨论和访谈提供了关于水源与水质、卫生习惯以及社区健康的定量和定性数据。我们发现,文顿市目前的一些水源不符合总溶解固体和砷的饮用水标准;大多数化粪池管理不当;并且由于该地区长期干旱,存在短期缺水风险。参与者报告的常见疾病包括胃部问题、腹泻和皮肤问题。这些疾病可能与水中的砷和/或生物有机体有关。文顿市改善水与卫生设施对健康产生的积极直接和间接影响包括:减少胃肠道疾病和皮肤疾病;改善水质、水量和水压;降低化粪池系统故障带来的风险;提高房产价值;潜在的经济增长;以及提升生活质量。消极直接和间接影响包括:居民的初始成本和月度成本;增加的财产税;地方政府债务增加;以及需要不断得到换届选举产生的决策者的支持。完成此次健康影响评估面临的独特挑战包括:(a)可用数据有限;(b)居民中存在恐惧和不信任的氛围;(c)居民缺乏关于水与卫生设施问题及其对公众健康影响的教育、意识和公民讨论;以及(d)缺乏公民讨论和对民主进程的参与。健康影响评估的一个重要成果是对当地供水情况的描述,这促使并赋予社区成员更大动力去更多地参与有关其供水情况的公民讨论。研究结果可推广至全球类似的低收入农村社区,这些社区的居民缺乏关于其供水情况的信息,且缺乏政治“话语权”。