摘要：【中文】本发明公开了一种预测水稻中砷元素含量风险评估方法，包括以下步骤：(1)模型构建：通过测量土壤中砷含量、有机质含量、pH，及成熟水稻中砷含量数据，建立多元回归模型；(2)待测水稻砷含量的预测：将土壤中砷含量、有机质含量及pH代入多元回归模型中，得到该土壤中待测水稻砷含量；(3)风险评估：采用单因子污染指数和致癌风险模型对水稻中砷含量进行风险评估。本发明对“土壤‑水稻系统”中影响砷元素吸收的因素进行了研究，提出了预测水稻中砷元素含量的最佳拟合模型，对摄食当地水稻给人体带来的健康风险情况进行了分析评价，具有一定的参考价值和实践意义。 【EN】The invention discloses a risk assessment method for predicting the content of arsenic in rice, which comprises the following steps: (1) constructing a model: establishing a multiple regression model by measuring the arsenic content, the organic matter content and the pH value in soil and arsenic content data in mature rice; (2) predicting the arsenic content of rice to be detected: substituting the arsenic content, the organic matter content and the pH value in the soil into a multiple regression model to obtain the arsenic content of the rice to be detected in the soil; (3) and (3) risk assessment: and (4) carrying out risk evaluation on the arsenic content in the rice by adopting a single-factor pollution index and carcinogenic risk model. The method provided by the invention is used for researching the factors influencing the arsenic absorption in the soil-rice system, provides an optimal fitting model for predicting the arsenic content in rice, analyzes and evaluates the health risk condition brought to human bodies by eating local rice, and has certain reference value and practical significance.

摘要：【中文】本发明公开了一种杂粮中重金属镉含量的风险评估方法，包括以下步骤：(1)将待评估杂粮样本进行预处理；(2)对杂粮样本中重金属镉的含量进行检测；(3)运用危害指数法对检测的数据进行健康风险评估；(4)应用风险评估软件对检测的数据进行拟合，对杂粮中重金属镉含量暴露浓度进行评估。本发明提供了一种杂粮中重金属镉含量的风险评估方法，从黑龙江部分地区选取了红豆、绿豆、小米三种杂粮为代表，以了解重金属镉的含量并且对其进行暴露评估，以明确黑龙江地区杂粮中重金属对人体的健康是否存在潜在的危害。 【EN】The invention discloses a risk assessment method for heavy metal cadmium content in coarse cereals, which comprises the following steps: (1) preprocessing a coarse cereal sample to be evaluated; (2) detecting the content of heavy metal cadmium in the coarse cereal sample; (3) carrying out health risk assessment on the detected data by using a hazard index method; (4) and fitting the detected data by using risk evaluation software, and evaluating the exposure concentration of the heavy metal cadmium content in the coarse cereals. The invention provides a risk assessment method for the content of heavy metal cadmium in coarse cereals, which selects red beans, mung beans and millet as representatives from the Heilongjiang part area to know the content of heavy metal cadmium and perform exposure assessment on the contents so as to determine whether the heavy metal in the Heilongjiang part coarse cereals has potential harm to the health of human bodies.