PM10 & PM2.5 Chemical Characterization in Shi-Men During ACE-Asia Authors: Jen-Chuan Wang Chung-Te Lee Zhe-Hong Lin Jen-Ping Chen Shiaw-Chen Liu Mail:Graduate Institute of Environmental Engineering, NCU, No. 38, Wu-chuan Li, Chung-li, Tao-yuan, Taiwan 320, R.O.C PHONE: (886-3)422-7151#4657 FAX: (886-3) 422-1602 Date set overview: China dust storms play a significant role in the radiation budget, climate change, visibility degradation, health effects, and the equilibrium of ecosystems in East Asia(Chung et al., 1996). In collaboration with the major countries of Pacific Rim on the monitoring of China outflow, this sampling was performed in the period of March - May 2001, for total of 34 samples. Sample collection began at 8:00 AM and lasted for 24h. The sampling(25°17.667'N 121°34.854' E) location was at the hill nearby northeast cape, which is a sparsely poputed area on Shi-Men. The site was about 260 m in height above sea level and about 200 m from the coast. The site was about 200 m from a military camp and 100 m from a trafficked road. The prevailing wind direction is north or northeast. In Spring, fall and winter, monsoon from China and the North Pacific Ocean can occasionally bring in northern or northeastern wind. Instrument Description: Ambient aerosols (PM10 & PM2.5) were collected using a Partisol Model 2300 Speciation Sampler.The sampler is a 4- or 12-channel sampling platform f or particulate matter-related and gaseous species. The device is based upon the same hardware and software platform as the other members of R&P's Partisol family of samplers. The sampler meets the U.S. Environmental Protection Agency(USEPA) chemical speciation requirements for PM2.5 sampling. The sampler is available in a basic 4-channel and an advanced 12-channel version to meet the sampling needs of different applications. In these configurations, the unit is designed to house R&P's ChemComb Speciation Sampling Cartridges developed by Harvard University. The Partisol Speciation Sampler is also available as a 12-channel Flexible Sampling Platform(FSP) for special project application. Table of Sensor Calibration Sensor Calibration Offset Amb Temp: 1.33 Amb Pres: -3.6 Table of Flow Calibration Flow A Calib Flow B Calib Flow C Calib Flow D Calib Offset: -0.227 -0.049 -0.076 -0.095 Span: 1.028 1.030 1.018 1.018 Date collection and processing: Sample collection began at 8:00 AM and lasted for 24h, therefore data present every day average. Derived parameters and processing techniques used: * Mass concentration Mass concentration(ug/m3) = (after-weight average (ug)-pre-weight average (ug)/ Sampling volume(m3) * Metal element concentration Metal element concentration(ug/m3) = (analysis data(ug/m2) x sampling area(PIr2)) Sampling volume(m3) * Water-soluble Ions Water-soluble Ions(ug/m3) = (analysis data(ppm)×10(dilute percentage))/ Sampling volume(m3) * Carbon (OC/EC)content Carbon (OC/EC)content(ug/m3) = (analysis data(ug/m2)×sampling area(PIr2))/ Sampling volume(m3) Date format: Analysis item Mass Metal Water-soluble Carbon(OC/EC) concentration elementcon. Ions First data ASCII ASCII ASCII ASCII First units ug ug/m2 ppm ug/m2 Second data ASCII ASCII ASCII ASCII Second units ug/m3 ug/m3 ug/m3 ug/m3 Sampling intervals24hrs 24hrs 24hrs 24hrs Date versionNumber(2001/7)1st (2001/7)1st (2001/7)1st (2001/7)1st Date remarks: Date Assessment Date Assessment 2001/03/22 Good 2001/04/15 Good 2001/03/23 Good 2001/04/16 Missing 2001/03/24 Good 2001/04/17 Missing 2001/03/25 Missing 2001/04/18 Good 2001/03/26 Missing 2001/04/19 Good 2001/03/27 Missing 2001/04/20 Missing 2001/03/28 Missing 2001/04/21 Missing 2001/03/29 Missing 2001/04/22 Missing 2001/03/30 Missing 2001/04/23 Good 2001/03/31 Missing 2001/04/24 Good 2001/04/01 Good 2001/04/25 Missing 2001/04/02 Good 2001/04/26 Good 2001/04/03 Good 2001/04/27 Good 2001/04/04 Missing 2001/04/28 Good 2001/04/05 Missing 2001/04/29 Good 2001/04/06 Good 2001/04/30 Good 2001/04/07 Missing 2001/05/01 Missing 2001/04/08 Good 2001/05/02 Good 2001/04/09 Missing 2001/05/03 Good 2001/04/10 Good 2001/05/04 Good 2001/04/11 Good 2001/05/05 Good 2001/04/12 Good 2001/05/06 Good 2001/04/13 Good 2001/05/07 Good 2001/04/14 Good References： 1. Chung, Y.S. and Yoon, M.B., On the occurrence of yellow sand and atmospheric loadings. Atmospheric Environment 30, pp. 2387-2397(1996) 2. Taipei Country Information Center for Human Geography & Digital Maps 3. Operating Manual Partisol Model 2300 Speciation Sampler(January 2000 Revision A)