Socioeconomic inequity of measured indoor and outdoor exposure to PM2.5: 5 Years of data from 14,000 low-cost particle monitors

Indoor Environments Pub Date : 2024-05-03 DOI:10.1016/j.indenv.2024.100016

Lance Wallace

{"title":"Socioeconomic inequity of measured indoor and outdoor exposure to PM2.5: 5 Years of data from 14,000 low-cost particle monitors","authors":"Lance Wallace","doi":"10.1016/j.indenv.2024.100016","DOIUrl":null,"url":null,"abstract":"<div>Multiple studies have considered socioeconomic or ethnic group inequities in outdoor fine particle (PM2.5) concentrations. Due to the lack of indoor measurements, these studies are forced to assume that indoor exposures are directly related to outdoor concentrations. In general, this assumption may be reasonable, but it is violated when indoor-generated fine particles form a substantial contribution to total potential indoor exposure. We now have for the first time access to long-term (months or years) indoor potential exposures, made possible by the development of low-cost optical particle counters. A large database of 120 million hourly PM2.5 indoor and outdoor concentrations measured by 10,000 outdoor and >4000 indoor PurpleAir monitors over a 5-year period (2017–2021) in three West Coast states (Washington, Oregon, California) has been used to compare with US Census 2021 estimates of median household income, educational attainment, housing characteristics, and ethnic groups. Clear evidence of inequities is found using indoor as well as outdoor PM2.5 concentrations.</div>","PeriodicalId":100665,"journal":{"name":"Indoor Environments","volume":"1 2","pages":"Article 100016"},"PeriodicalIF":0.0000,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950362024000134/pdfft?md5=9b23e3ba1aa099b9404a85988d0dd707&pid=1-s2.0-S2950362024000134-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indoor Environments","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2950362024000134","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Multiple studies have considered socioeconomic or ethnic group inequities in outdoor fine particle (PM_2.5) concentrations. Due to the lack of indoor measurements, these studies are forced to assume that indoor exposures are directly related to outdoor concentrations. In general, this assumption may be reasonable, but it is violated when indoor-generated fine particles form a substantial contribution to total potential indoor exposure. We now have for the first time access to long-term (months or years) indoor potential exposures, made possible by the development of low-cost optical particle counters. A large database of 120 million hourly PM_2.5 indoor and outdoor concentrations measured by 10,000 outdoor and >4000 indoor PurpleAir monitors over a 5-year period (2017–2021) in three West Coast states (Washington, Oregon, California) has been used to compare with US Census 2021 estimates of median household income, educational attainment, housing characteristics, and ethnic groups. Clear evidence of inequities is found using indoor as well as outdoor PM_2.5 concentrations.

查看原文本刊更多论文

室内和室外 PM2.5 测量暴露的社会经济不平等：14,000 个低成本粒子监测器的 5 年数据

多项研究考虑了社会经济或种族群体在室外细颗粒物（PM2.5）浓度方面的不平等。由于缺乏室内测量，这些研究不得不假设室内暴露与室外浓度直接相关。一般来说，这种假设可能是合理的，但当室内产生的细颗粒物在潜在的室内总暴露量中占很大比例时，这种假设就不成立了。现在，我们首次获得了长期（数月或数年）的室内潜在暴露量，这得益于低成本光学粒子计数器的发展。在西海岸的三个州（华盛顿州、俄勒冈州和加利福尼亚州），1万个室外和4000个室内PurpleAir监测器在5年期间（2017-2021年）测得了1.2亿小时的室内外PM2.5浓度，我们利用这个大型数据库，将其与美国人口普查2021年估计的家庭收入中位数、教育程度、住房特征和种族群体进行了比较。通过室内和室外 PM2.5 浓度，发现了不平等的明显证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Indoor Environments

自引率

0.00%

发文量