一种开源的闪亮工具,用于通过概率风险评估来推导人类健康水质标准
Jayme Coyle1, Bradley Barnhart2, Giffe Johnson3
1NCASI, Dayton, OH, USA.
Integrated environmental assessment and management
|May 14, 2025
概括
一个新的R Shiny工具,表面水概率风险在线,简化了使用概率方法推导人类健康水质标准 (HHWQC). 该工具通过解决水质标准的变化和不确定性来提高风险评估的准确性.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 风险评估 风险评估
背景情况:
- 美国环境保护局 (EPA) 根据"清洁水法案"制定了国家推的人类健康水质标准 (HHWQC).
- 目前用于HHWQC的确定性方法没有充分考虑人口的变化和不确定性,可能误估了风险.
- 概率方法提供了更好的风险评估,但面临复杂性,软件可用性和监管接受方面的挑战.
研究的目的:
- 引入一个新的R闪亮工具,表面水概率风险在线 (SWPRO),用于导出HHWQC.
- 通过使用单一可访问的平台,实现HHWQC开发的确定性和概率方法.
- 为了促进对更广泛的用户和应用程序的概率方法的使用.
主要方法:
- 开发一个R Shiny应用程序,SWPRO,集成确定性和概率方法.
- 整合了一个定制的分配模块,用于参数化体重,鱼类消耗和摄入水的分布.
- 在多种风险管理场景中,应用该工具来导出105种化学品的HHWQC.
主要成果:
- SWPRO提供了一个用户友好的界面,用于使用确定性和概率方法计算HHWQC.
- 该工具允许灵活对关键暴露变量进行参数化,用于概率分析.
- 结果可以下载,支持记录,报告和进一步的科学研究.
结论:
- SWPRO显著提高了开发概率人类健康水质标准的可访问性和效率.
- 该工具的灵活性和易用性可以在即将到来的标准审查中支持各州,并改善水质风险评估.
- 由于这种用户友好的软件的可用性,预计HHWQC将更广泛地采用概率方法.
相关概念视频
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
31
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
31
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
106
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
106
01:11Hazard Rate
75
The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
75