宁波市家庭室内空气中二甲苯浓度检测数据
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对宁波市于2020年至2023年在本单位检测的家庭室内空气中二甲苯浓度进行分析，数据反应二甲苯浓度主要与室内装修情况和季节温度有很大的关系，本数据为以后市民室内空气中二甲苯污染物控制提供参考依据。数据来源：2020年至2023年来本单位委托检验的家庭室内环境检测；数据检测：按标准要求封闭门窗，采样人员上门采样，采样完成后将样品带回实验室进行分析；数据计算：二甲苯浓度ρ=（W -W0）/Vr，式中W为由校准曲线计算的样品管中二甲苯的质量（单位为μg），W0为由校准曲线计算的空白管中二甲苯的质量（单位为μg），Vr为参比状态下的采样体积（单位为L）；数据应用：通过检测数据分析，影响二甲苯浓度的主要因素是装修材料，二甲苯主要来源于劣质的油漆、涂料、胶水等装修材料中，数据显示只有个别家庭二甲苯浓度超标，其次是季节温度的影响，在夏季温度较高时二甲苯浓度普遍偏高。本次数据可以为市民在以后装修房屋时提供参考依据。
This dataset analyzes the xylene concentrations in indoor residential air of Ningbo detected at our institution between 2020 and 2023. The data demonstrates that xylene concentrations are strongly correlated with indoor decoration conditions and seasonal temperatures, and provides a reference for residents to control xylene pollutants in indoor air. Data Source: Indoor environmental inspection records of residential spaces commissioned to our institution from 2020 to 2023. Sampling and Testing: Sampling personnel performed on-site sampling after closing doors and windows in accordance with standard specifications, then transported the collected samples back to the laboratory for analysis. Data Calculation: The xylene concentration ρ is calculated using the formula ρ = (W - W₀)/Vᵣ, where W is the mass of xylene in the sample tube calculated via the calibration curve (unit: μg), W₀ is the mass of xylene in the blank tube calculated via the calibration curve (unit: μg), and Vᵣ is the sampling volume under reference conditions (unit: L). Data Application: Based on the analysis of inspection data, the primary factor affecting xylene concentrations is decoration materials. Xylene primarily originates from substandard decoration materials such as paints, coatings, adhesives and other similar products. The data shows that only a small number of households have xylene concentrations exceeding the standard limits. Seasonal temperature is another significant influencing factor, with xylene concentrations generally higher in summer when ambient temperatures are elevated. This dataset can serve as a valuable reference for residents when renovating their homes in the future.
