Seasonal effects in the application of the MOMA remote calibration tool to outdoor PM2.5 air sensors [0.03%]
MOMA远程校准工具在室外PM2.5空气传感器应用中的季节效应分析
Lena F Weissert,Geoff S Henshaw,Andrea L Clements et al.
Lena F Weissert et al.
Air sensors are being used more frequently to measure hyper-local air quality. The PurpleAir sensor is among one of the most popular air sensors used worldwide to measure fine particulate matter (PM2.5). However, there is a need to understa...
Development of a Multichannel Organics In situ enviRonmental Analyzer (MOIRA) for mobile measurements of volatile organic compounds [0.03%]
挥发性有机物的移动式多通道有机化合物原位环境分析仪(MOIRA)开发研究
Audrey J Dang,Nathan M Kreisberg,Tyler L Cargill et al.
Audrey J Dang et al.
Volatile organic compounds (VOCs) have diverse functionality, emission sources, and environmental fates. Speciated measurements of their spatiotemporal variability are thus key to understanding their impacts on air quality, health, and clim...
Calibration of PurpleAir low-cost particulate matter sensors: model development for air quality under high relative humidity conditions [0.03%]
PurpleAir低成本颗粒物传感器的校准：高相对湿度条件下空气质量模型的发展
Martine E Mathieu-Campbell,Chuqi Guo,Andrew P Grieshop et al.
Martine E Mathieu-Campbell et al.
The primary source of measurement error from widely used particulate matter (PM) PurpleAir sensors is ambient relative humidity (RH). Recently, the US EPA developed a national correction model for PM2.5 concentrations measured by PurpleAir ...
Mobile air quality monitoring and comparison to fixed monitoring sites for instrument performance assessment [0.03%]
移动空气质量管理及与固定监测点的比较以评估仪器性能
Andrew R Whitehill,Melissa Lunden,Brian LaFranchi et al.
Andrew R Whitehill et al.
Air pollution monitoring using mobile ground-based measurement platforms can provide high quality spatiotemporal air pollution information. As mobile air quality monitoring campaigns extend to entire fleets of vehicles and integrate smaller...
Quantifying functional group compositions of household fuel-burning emissions [0.03%]
定量表征民用燃料燃烧排放的功能团组成
Emily Y Li,Amir Yazdani,Ann M Dillner et al.
Emily Y Li et al.
Globally, billions of people burn fuels indoors for cooking and heating, which contributes to millions of chronic illnesses and premature deaths annually. Additionally, residential burning contributes significantly to black carbon emissions...
Quantification of toxic metals using machine learning techniques and spark emission spectroscopy [0.03%]
基于机器学习技术和火花发射光谱法的有毒金属定量研究
Seyyed Ali Davari,Anthony S Wexler
Seyyed Ali Davari
The United States Environmental Protection Agency (US EPA) list of hazardous air pollutants (HAPs) includes toxic metal suspected or associated with development of cancer. Traditional techniques for detecting and quantifying toxic metals in...
Open-path measurement of stable water isotopologues using mid-infrared dual-comb spectroscopy [0.03%]
基于中红外频率梳光谱的水稳定同位素开放光路测量方法研究
Daniel I Herman,Griffin Mead,Fabrizio R Giorgetta et al.
Daniel I Herman et al.
We present an open-path mid-infrared dual-comb spectroscopy (DCS) system capable of precise measurement of the stable water isotopologues H216O and HD16O. This system ran in a remote configuration at a rural test site for 3.75 months with 6...
Identifying optimal co-location calibration periods for low-cost sensors [0.03%]
低成本传感器的共置校准周期的优化识别方法研究
Misti Levy Zamora,Colby Buehler,Abhirup Datta et al.
Misti Levy Zamora et al.
Low-cost sensors are often co-located with reference instruments to assess their performance and establish calibration equations, but limited discussion has focused on whether the duration of this calibration period can be optimized. We pla...
Stationary and portable multipollutant monitors for high-spatiotemporal-resolution air quality studies including online calibration [0.03%]
包括在线校准的高时空分辨率空气质量研究用固定式和便携式多污染物监测仪
Colby Buehler,Fulizi Xiong,Misti Levy Zamora et al.
Colby Buehler et al.
The distribution and dynamics of atmospheric pollutants are spatiotemporally heterogeneous due to variability in emissions, transport, chemistry, and deposition. To understand these processes at high spatiotemporal resolution and their impl...
Development and Application of a United States wide correction for PM2.5 data collected with the PurpleAir sensor [0.03%]
用于PurpleAir传感器采集PM2.5数据的美国范围内的校正方法的研发与应用
Karoline K Barkjohn,Brett Gantt,Andrea L Clements
Karoline K Barkjohn
PurpleAir sensors, which measure particulate matter (PM), are widely used by individuals, community groups, and other organizations including state and local air monitoring agencies. PurpleAir sensors comprise a massive global network of mo...