公开(公告)号：US10830684B2

公开(公告)日：2020-11-10

申请号：US16160637

申请日：2018-10-15

Applicant: GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY

Inventor： Paul A. Solomon ,  Anthony D. A. Hansen ,  Anna-Marie Hyatt

IPC: G01N15/06 ,  G01N21/27 ,  C09D11/324 ,  C09D11/322 ,  G03G15/00 ,  C09D11/328 ,  G01N1/28 ,  G03G15/16 ,  G01N15/00 ,  G03G21/20

Abstract: The method of the invention provides a simple, reproducible reference, or set of reference standards, as a validation of a calibration standard for filter-based measurements of light absorbing aerosol particles (black carbon and brown carbon) and organic carbon and elemental carbon particles found in indoor and outdoor environments, and in emission streams. The set of reference standards comprise grayscale images deposited by a mist or print at a known density on a substrate material. The reference standards may be made by a printer using as a substrate either paper or another material such as glass fiber, quartz fiber, polypropylene, or cellulose.

公开(公告)号：US20140020349A1

公开(公告)日：2014-01-23

申请号：US14034165

申请日：2013-09-23

Applicant: U.S. ENVIRONMENTAL PROTECTION AGENCY

Inventor： Paul A. Solomon

IPC: B01D45/08

CPC classification number: B01D45/08 ,  G01N1/2202 ,  G01N2001/2223

Abstract: A multi-filter chemical speciation sampler and a virtual impaction particle separation inlet therefore are provided. The inlet includes a housing having a bottom, a collection tube that extends through the bottom, and collection apertures formed in the bottom, arranged around the collection tube; a first plate disposed on top of the housing, having acceleration nozzles disposed at the perimeter thereof; a second plate disposed in the housing below the first plate, having a central aperture and separation apertures disposed around the central aperture. The sampler includes: an inlet; a virtual impaction separator to further fractionate the PM into a course fraction and a fine fraction; a first separation assembly to divide the course fraction into coarse aliquots, comprising first filters to collect the coarse aliquots; a second separation assembly to divide the fine fraction into fine aliquots, comprising second filters to collect the fine aliquots.

Abstract translation: 因此，提供了多过滤器化学形态取样器和虚拟冲击粒子分离入口。 入口包括具有底部的壳体，延伸穿过底部的收集管和围绕收集管布置的底部形成的收集孔; 设置在所述壳体的顶部上的第一板，具有设置在其周边的加速喷嘴; 设置在第一板下方的壳体中的第二板，具有围绕中心孔设置的中心孔和分离孔。 采样器包括：入口; 虚拟冲击分离器，以进一步将PM分级为过程部分和精馏分; 第一分离组件，用于将过程部分分成粗等分试样，包括用于收集粗等分试样的第一过滤器; 第二分离组件，以将细级分分成细等分试样，包括第二过滤器以收集精细等分试样。

公开(公告)号：US11320411B2

公开(公告)日：2022-05-03

申请号：US16288925

申请日：2019-02-28

Applicant: GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY

Inventor： Paul A. Solomon ,  Thomas Kirchstetter

IPC: G01N21/3518 ,  G01N33/00 ,  B01D39/20 ,  B01D46/00 ,  B01D53/86 ,  B01D46/62 ,  B01D46/84

Abstract: The invention relates to a device for measuring, in near-real-time, the level of black carbon, brown carbon, organic carbon, total carbon and CO2 in air. The device also provides for a direct calculation of aerosol angstrom coefficient as well as estimation of emissions rates of black carbon or brown carbon from nearby combustion sources.

公开(公告)号：US09718017B2

公开(公告)日：2017-08-01

申请号：US14034165

申请日：2013-09-23

Applicant: U.S. Environmental Protection Agency

Inventor： Paul A. Solomon

IPC: G01N1/22 ,  B01D45/08

CPC classification number: B01D45/08 ,  G01N1/2202 ,  G01N2001/2223

Abstract: A multi-filter chemical speciation sampler and a virtual impaction particle separation inlet therefore are provided. The inlet includes a housing having a bottom, a collection tube that extends through the bottom, and collection apertures formed in the bottom, arranged around the collection tube; a first plate disposed on top of the housing, having acceleration nozzles disposed at the perimeter thereof; a second plate disposed in the housing below the first plate, having a central aperture and separation apertures disposed around the central aperture. The sampler includes: an inlet; a virtual impaction separator to further fractionate the PM into a course fraction and a fine fraction; a first separation assembly to divide the course fraction into coarse aliquots, comprising first filters to collect the coarse aliquots; a second separation assembly to divide the fine fraction into fine aliquots, comprising second filters to collect the fine aliquots.