Using Low-Cost Sensing Technology to Assess Ambient and Indoor Fine Particulate Matter Concentrations in New York during the COVID-19 Lockdown

IF 4.3 2区环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Indoor air Pub Date : 2023-08-16 DOI:10.3390/air1030015

Justin Holder, Jamelia Jordan, K. Johnson, A. Akinremi, D. Roberts-Semple

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引用次数: 0

Abstract

Air pollution is a leading cause of death in the United States and is associated with adverse health outcomes, including increased vulnerability to coronavirus disease 2019 (COVID-19). The AirBeam2 was used to measure particulate matter with a diameter of 2.5 μm or smaller (PM2.5) to investigate differences between indoor and ambient levels at seven private homes in New York during and after the COVID-19 lockdown. Measurements taken in 2020 fall, 2021 winter, and 2022 fall showed that at 90% of the sites, indoor PM2.5 levels exceeded outdoor levels both during and after the COVID-19 lockdown, p = 0.03, possibly exceeding safety levels. Higher indoor PM2.5 levels attributed to little or no ventilation in the basement and kitchens from cooking and smoke were greater in fall than in winter. Higher ambient PM2.5 levels were attributed to vehicular traffic at a street-facing sampling site. PM2.5 sources identified in this study may help in devising control strategies to improve indoor air quality (IAQ) and consequently alleviate respiratory health effects. These findings may be used as a basis for in-house modifications, including natural ventilation and the use of air purifiers to reduce exposures, mitigate future risks, and prevent potential harm to vulnerable residents.

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利用低成本传感技术评估新冠肺炎封锁期间纽约环境和室内细颗粒物浓度

在美国，空气污染是导致死亡的主要原因之一，并与不良健康结果有关，包括更容易感染2019年冠状病毒病(COVID-19)。AirBeam2用于测量直径小于2.5 μm的颗粒物(PM2.5)，以调查纽约7个私人住宅在新冠肺炎封锁期间和之后室内和环境水平的差异。在2020年秋季、2021年冬季和2022年秋季进行的测量显示，在90%的地点，在COVID-19封锁期间和之后，室内PM2.5水平都超过了室外水平，p = 0.03，可能超过了安全水平。由于地下室和厨房很少或没有通风，做饭和冒烟，室内PM2.5水平在秋季高于冬季。在一个面向街道的采样点，较高的环境PM2.5水平归因于车辆交通。本研究确定的PM2.5来源可能有助于制定控制策略，以改善室内空气质量(IAQ)，从而减轻呼吸道健康影响。这些发现可以作为室内改造的基础，包括自然通风和使用空气净化器，以减少暴露，减轻未来的风险，并防止对脆弱居民的潜在伤害。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.