A New Sensor for the Assessment of Personal Exposure to Volatile Organic Compounds.
A New Sensor for the Assessment of Personal Exposure to Volatile Organic Compounds.
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DOI：
10.1016/j.atmosenv.2012.01.048
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发表时间：
2012-07-01
影响因子：
5
通讯作者：
Forzani, Erica S.
中科院分区：
文献类型：
--
作者：
Chen, Cheng;Campbell, Katherine Driggs;Negi, Indira;Iglesias, Rodrigo A.;Owens, Patrick;Tao, Nongjian;Tsow, Francis;Forzani, Erica S.
关键词：
为了提高我们对室内和室外人体暴露于释放到环境中的常见环境毒物的了解，需要能够随时随地监测和量化毒物的新技术。本文提出了一种可穿戴传感器来提供这种功能。该传感器可以与普通智能手机进行通信，实时提供个人层面的挥发性有机化合物浓度的准确测量，每三分钟提供一次环境毒物数据。该传感器对芳香烃、烷烃和氯代烃具有很高的特异性和灵敏度，分辨率低至百万分之四(Ppb)，检测范围为4ppb至1000ppm(百万分之四)。传感器的性能在各种环境和活动中使用气相色谱和精选离子流管-质谱仪参考方法进行了验证，总体准确度高于81%(R2>；0.9)。实地测试检查了个人在各种情况下的暴露情况，包括：室内和室外环境，不同城市的交通暴露，从0到50ppmc(碳氢化合物碳含量百万分之几)，以及2010年深水地平线漏油事件附近的污染物。这些现场测试不仅验证了性能，还展示了新技术提供的前所未有的高时空毒性信息。
To improve our understanding of indoor and outdoor personal exposures to common environmental toxicants released into the environment, new technologies that can monitor and quantify the toxicants anytime anywhere are needed. This paper presents a wearable sensor to provide such capabilities. The sensor can communicate with a common smart phone and provides accurate measurement of volatile organic compound concentration at a personal level in real time, providing environmental toxicants data every three minutes. The sensor has high specificity and sensitivity to aromatic, alkyl, and chlorinated hydrocarbons with a resolution as low as 4 parts per billion (ppb), with a detection range of 4 ppb to 1000 ppm (parts per million). The sensor's performance was validated using Gas Chromatography and Selected Ion Flow Tube - Mass Spectrometry reference methods in a variety of environments and activities with overall accuracy higher than 81% (r2 > 0.9). Field tests examined personal exposure in various scenarios including: indoor and outdoor environments, traffic exposure in different cities which vary from 0 to 50 ppmC (part-per-million carbon from hydrocarbons), and pollutants near the 2010 Deepwater Horizon's oil spill. These field tests not only validated the performance but also demonstrated unprecedented high temporal and spatial toxicant information provided by the new technology.
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影响因子：
10.4
作者：
McConnell R;Berhane K;Yao L;Jerrett M;Lurmann F;Gilliland F;Künzli N;Gauderman J;Avol E;Thomas D;Peters J
通讯作者：
Peters J
影响因子：
--
作者：
Fent, Kenneth W.;Evans, Douglas E.
通讯作者：
Evans, Douglas E.
影响因子：
7.4
作者：
Potyrallo, Radislav A.;Morris, William G.
通讯作者：
Morris, William G.
影响因子：
4.3
作者：
Tsow, Francis;Forzani, Erica;Tao, N. J.
通讯作者：
Tao, N. J.
DOI：
10.1038/jes.2010.35
发表时间：
2011-07-01
影响因子：
4.5
作者：
Negi, Indira;Tsow, Francis;Tao, Nongjian
通讯作者：
Tao, Nongjian