One of the focused areas that transportation industry has to overcome is safe transportation of hazardous materials (HAZMATs). The low probability/high consequence nature of the HAZMAT transportation necessitates assessing the risk associated with HAZMAT transportation. To fully understand the potential consequences of HAZMAT accidents, estimating the diffusion area under different spill volumes for various HAZMATs is needed for a complete risk assessment. The main purpose of this study is to develop a relationship between the volume and the diffusion area for six analytes: 75% methanol, 70% ethanol, 36% HCL, 40% NaOH, Bakken, and Niobrara crude oils. We evaluate the distribution of the diffusion area with respect to 11 volume categories at five temperatures. This study also utilizes a circular chromatography approach to identify the diffusion area with respect to 11 volume levels. The findings of the study show that analytes diffusion can be explicitly explained by linear regression, polynomial regression, and power regression. Methanol at 0°C to 30°C, ethanol at 10°C and 20°C, HCL at 20°C, and NaOH at 10°C can be explained by linear regression, while methanol at 40°C can be explained by power regression. All other analytes followed polynomial regression trends. One notable finding is that NaOH, Bakken, and Niobrara crude oils' diffusion times decrease with temperature increase.

中文翻译：

---

多孔介质上有害物质的体积与扩散面积之间关系的测定

运输行业必须克服的重点领域之一是危险材料 (HAZMAT) 的安全运输。危险品运输的低概率/高后果性质需要评估与危险品运输相关的风险。为了充分了解危险品事故的潜在后果，需要估计各种危险品在不同泄漏量下的扩散面积，以进行完整的风险评估。本研究的主要目的是建立六种分析物的体积和扩散面积之间的关系：75% 甲醇、70% 乙醇、36% HCL、40% NaOH、Bakken 和 Niobrara 原油。我们评估了 5 个温度下 11 个体积类别的扩散面积分布。该研究还利用循环色谱法来确定 11 个体积水平的扩散区域。研究结果表明，分析物扩散可以通过线性回归、多项式回归和幂回归明确解释。0°C至30°C的甲醇、10°C和20°C的乙醇、20°C的HCL和10°C的NaOH可以用线性回归来解释，而40°C的甲醇可以用幂来解释回归。所有其他分析物均遵循多项式回归趋势。一项值得注意的发现是，NaOH、Bakken 和 Niobrara 原油的扩散时间随着温度升高而缩短。10°C和20°C的乙醇、20°C的HCL和10°C的NaOH可以通过线性回归来解释，而40°C的甲醇可以通过幂回归来解释。所有其他分析物均遵循多项式回归趋势。一项值得注意的发现是，NaOH、Bakken 和 Niobrara 原油的扩散时间随着温度升高而缩短。10°C和20°C的乙醇、20°C的HCL和10°C的NaOH可以通过线性回归来解释，而40°C的甲醇可以通过幂回归来解释。所有其他分析物均遵循多项式回归趋势。一项值得注意的发现是，NaOH、Bakken 和 Niobrara 原油的扩散时间随着温度升高而缩短。