室内空气中甲醛含量评价检测数据

房子装修后空气中甲醛含量是否超标？越来越受到人群群众的关注，对桐庐县新装修房子室内空气中甲醛含量进行摸底调查，从而为室内空气质量提供事实依据，为人民群众放心居住提供意见和指南。1、样品来源：本项目检测的室内空气来源于桐庐县和富阳区新装修待乔迁的新房子和新办公场所。 2、数据检测：根据GB/T 18204.2-2014酚试剂分光光度法，利用分光光度计进行检测。3、数据判定：甲醛含量的计算，X=(m-m0)/V。X为空气中甲醛含量，单位为mg/m³；m为样品甲醛含量，单位为μg；m为空白甲醛含量，单位为μg；V为标准状态下采样体积，单位为L; 依据GB/T 18883-2022 室内空气质量标准标定值要求，大于0.08mg/m³为不合格；不合格率=甲醛含量不合格项次/ 进行甲醛含量检测总项数。4、数据应用：通过检测数据分析研判，我们可以判断空气中甲醛含量是否超标，避免因空气污染而产生人体健康问题，为人民群众放心居住提供意见。

Whether the formaldehyde content in the indoor air after house renovation exceeds the standard has become an increasing concern among the public. A baseline survey was carried out on the formaldehyde concentration in indoor air of newly renovated houses and new office spaces in Tonglu County and Fuyang District, aiming to provide factual basis for indoor air quality assessment and offer professional suggestions and guidelines for residents to live safely.
1. Sample Source: The indoor air samples tested in this project were collected from newly renovated houses and new office spaces in Tonglu County and Fuyang District that are ready for moving in.
2. Data Detection: The detection was performed using a spectrophotometer in accordance with the phenol reagent spectrophotometry method stipulated in GB/T 18204.2-2014.
3. Data Judgment: The calculation formula for formaldehyde content is X=(m - m₀)/V. Specifically, X represents the formaldehyde concentration in the air, with the unit of mg/m³; m refers to the formaldehyde content in the air sample, with the unit of μg; m₀ refers to the formaldehyde content in the blank control, with the unit of μg; V represents the sampling volume under standard conditions, with the unit of L. According to the calibration value requirements of the Indoor Air Quality Standard GB/T 18883-2022, samples with a formaldehyde concentration greater than 0.08 mg/m³ are deemed unqualified. The unqualified rate is calculated as: (number of unqualified formaldehyde detection items) / (total number of formaldehyde detection items).
4. Data Application: By analyzing and evaluating the detection data, we can determine whether the formaldehyde content in the air exceeds the standard, avoid human health problems caused by air pollution, and provide practical suggestions for residents to live with peace of mind.