Low-cost Personal Sampling Pump

! 项目摘要 暴露于颗粒物（PM）空气污染是导致过早患病和死亡的第五大原因。 地球和全球疾病负担的头号环境风险因素（构成更大的威胁） 比所有其他环境风险因素的总和更危险）。 尽管需求不断增长，但评估个人暴露于PM的最新技术是基于 几十年的旧技术，效率低下，负担沉重，昂贵。这些造成的身体负担 显示器（噪音、视觉美感和重量）使它们难以佩戴。这些显示器的成本也 防止在流行病学研究和职业卫生相关的尺度上进行空气污染暴露监测。 危险监视该第二阶段提案将开发和商业化一种新颖，轻便， 基于超声波压电泵送模块的廉价个人采样技术。的 超声波个人气溶胶采样器（UPAS）有可能获得广泛的空气污染份额 监测市场。AST建议将这种采样器开发成价格低廉的商业原型 （规模化物料成本<200美元），提供时间积分（基于滤波器）和实时测量， 精确（流量控制和PM采样效率在参考值的4%以内）、紧凑、重量轻（<200 g）， 提供更好的对象装修，没有年度维护要求，并且实际上在操作中是无声的。 此外，该技术将是多功能的-能够收集PM2.5（沿着其他相关尺寸的部分 例如PM 4和PM10、可吸入和可吸入PM），采样持续时间长达24小时。综合起来看， 这些创新方面表明，UPAS将具有很强的竞争力， 大量的市场渗透。提出了三个目标：（1）将一种新型的、实时的PM传感器集成到 UPAS硬件/固件;（2）开发一套不同的即插即用的尺寸选择入口来制作UPAS 更通用，并优化UPAS的重量，功率，性能和可用性;（3）可扩展性能 通过实验室和现场测试的原型。 !

! Project Summary Exposure to particulate matter (PM) air pollution is the fifth leading cause of premature disease and death on the planet and the number one environmental risk factor for the global burden of disease (posing a greater danger than all other environmental risk factors combined) according to the World Health Organization. Despite the growing need (and demand), the state-of-the-art for assessing personal exposure to PM is based on decades old technology that is inefficient, burdensome, and expensive. The physical burden posed by these monitors (noise, visual aesthetic, and weight) make them difficult to wear. The cost of these monitors also prevents air pollution exposure monitoring at scales relevant to epidemiologic research and occupational hazard surveillance. This Phase II proposal will develop and commercialize a novel, lightweight, and inexpensive personal sampling technology based upon ultrasonic piezoelectric pumping modules. The ultrasonic personal aerosol sampler (UPAS) has the potential to gain a wide share of the air pollution monitoring market. AST proposes developing this sampler into a commercial prototype that is inexpensive (<$200 bill-of-material cost at scale), provides both time-integrated (filter-based) and real-time measurements, is accurate (flow control and PM sampling efficiency within 4% of reference), compact, lightweight (<200g), provides better subject fitment, has no annual maintenance requirements, and virtually silent in operation. Furthermore, the technology will be versatile – able to collect PM2.5 (along with other relevant size fractions such as PM4 and PM10, respirable, and inhalable PM) for sample durations of up to 24 hrs. Taken together, these innovative aspects suggest that the UPAS will be highly competitive with potential for rapid and substantial market penetration. Three aims are proposed: (1) Integrate a novel, real-time PM sensor into the UPAS hardware/firmware; (2) Develop a suite of different plug-and-play size-selective inlets to make the UPAS more versatile and optimize the UPAS for weight, power, performance, and usability; (3) Validate performance of the prototype through laboratory and field testing. !