As one of the prevailing approaches, the potential ecological risk index (RI) originated from Håkanson is a diagnostic method for water contamination control intent which considers metal ecological adverse influence, environmental adverse effect and toxicity. In this study, the toxic factor (=30) for Be is calculated depend on Håkanson’s fundamentals. Taking the case of Be polluted river, the environmental risk of Be in the surface sediments is evaluated by ecological risk factor ($E_r^i$). This is then compared with the index of geoaccumulation (${\mathit{I}}_{geo}$) and enrichment factor (EF). Results demonstrate that Be has the resemble contamination grades despite of $E_r^i$, EF or $I_{\mathrm{geo}}$ indexes is applied demonstrating the appropriateness of the calculated toxic factor. Results of regression analysis further exhibit significant relationships between $E_r^i$ and $I_{\mathrm{geo}}$ and EF, revealing that $E_r^i$ is a dependable and reasonable indicator for ecological assessment Be contamination in aquatic environment.

作为一种流行的方法，源自Håkanson的潜在生态风险指数（RI）是一种水污染控制意图的诊断方法，该方法考虑了金属生态不利影响，环境不利影响和毒性。在这项研究中，Be的毒性因子（= 30）的计算取决于Håkanson的基本原理。以Be被污染的河流为例，表层沉积物中Be的环境风险通过生态风险因子（${Ë}_{\mathrm{[R}}^{\mathrm{一世}}$）。然后将其与地理累积指数（${\mathit{一世}}_{GËØ}$）和富集因子（EF）。结果表明，Be具有相似的污染等级，尽管${Ë}_{\mathrm{[R}}^{\mathrm{一世}}$，EF或 ${\mathrm{一世}}_{\mathrm{地缘}}$应用指数来证明计算出的毒性因子是否合适。回归分析结果进一步显示出${Ë}_{\mathrm{[R}}^{\mathrm{一世}}$ 和 ${\mathrm{一世}}_{\mathrm{地缘}}$ 和EF，揭示了 ${Ë}_{\mathrm{[R}}^{\mathrm{一世}}$ 是生态评估的可靠和合理的指标是水生环境中的污染。