Comparison of Real-Time PM2.5 Between Rural and Urban Homes in Southwest China Based on Field Measurement: Insight Into the Cooking Activity Contribution

IF 4.3 2区 环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Indoor air Pub Date : 2024-09-14 DOI:10.1155/2024/8874231
Wei Du, Ruijing Hu, Jinze Wang, Nan Fu, Ying Li, Nan Lin, Ming Yang, Bingyan Zhang, Yuanchen Chen, Ye Huang
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Abstract

People generally spend most of their time indoors; thus, household air pollution (HAP), especially indoor air pollution, is of paramount importance. In this study, real-time particulate matter (PM2.5) monitors were used to collect high temporal resolution concentrations of fine PM2.5 in different microenvironments from 104 urban and rural households in Guizhou Province to investigate the urban–rural difference in HAP and the contribution of cooking activity to HAP. Results showed that PM2.5 concentrations among different rural microenvironments varied largely, ranging from 26.10 ± 33.27 (mean ± standard deviation) in the bedroom to 69.20 ± 72.50 μg/m3 in the kitchen while varying slightly across various urban microenvironments, ranging from 32.30 ± 17.5 in the living room to 34.65 ± 16.37 μg/m3 in the kitchen. Cooking activity can rapidly increase PM2.5 concentrations in the kitchen, whose peaks were at least five times higher than baseline levels. The contribution of cooking to the kitchen PM2.5 was 18.43 ± 12.17% and 5.39 ± 4.15% in rural and urban homes, respectively. Biomass burning affected indoor PM2.5 concentrations significantly, where rural households using biomass had the highest PM2.5 levels than households burning other fuels. This study identified the urban–rural disparities in household PM2.5 pollution and the contributions of cooking activities to HAP, illustrating the importance of cooking activities to indoor air pollution, which can assist in controlling indoor air pollution.

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基于实地测量的中国西南地区城乡家庭实时 PM2.5 比较:洞察烹饪活动的贡献
人们的大部分时间一般都在室内度过,因此,家庭空气污染(HAP),尤其是室内空气污染至关重要。本研究利用颗粒物(PM2.5)实时监测仪采集了贵州省 104 个城市和农村家庭不同微环境中高时间分辨率的细颗粒物(PM2.5)浓度,以研究家庭空气污染的城乡差异以及烹饪活动对家庭空气污染的贡献。结果表明,不同农村微环境中的PM2.5浓度差异很大,从卧室的26.10±33.27(平均值±标准偏差)到厨房的69.20±72.50 μg/m3,而不同城市微环境中的PM2.5浓度略有不同,从客厅的32.30±17.5到厨房的34.65±16.37 μg/m3。烹饪活动会迅速增加厨房的 PM2.5 浓度,其峰值至少是基线水平的五倍。在农村和城市家庭中,烹饪对厨房 PM2.5 的贡献率分别为 18.43 ± 12.17% 和 5.39 ± 4.15%。生物质燃烧对室内PM2.5浓度的影响很大,使用生物质的农村家庭的PM2.5水平比使用其他燃料的家庭最高。这项研究确定了家庭 PM2.5 污染的城乡差异以及烹饪活动对 HAP 的贡献,说明了烹饪活动对室内空气污染的重要性,有助于控制室内空气污染。
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来源期刊
Indoor air
Indoor air 环境科学-工程:环境
CiteScore
10.80
自引率
10.30%
发文量
175
审稿时长
3 months
期刊介绍: The quality of the environment within buildings is a topic of major importance for public health. Indoor Air provides a location for reporting original research results in the broad area defined by the indoor environment of non-industrial buildings. An international journal with multidisciplinary content, Indoor Air publishes papers reflecting the broad categories of interest in this field: health effects; thermal comfort; monitoring and modelling; source characterization; ventilation and other environmental control techniques. The research results present the basic information to allow designers, building owners, and operators to provide a healthy and comfortable environment for building occupants, as well as giving medical practitioners information on how to deal with illnesses related to the indoor environment.
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