A method for on-line measurement of water-soluble organic carbon in ambient aerosol particles: Results from an urban site
Sullivan, AP; Weber, RJ; Clements, AL; Turner, JR; Bae, MS; Schauer, JJ
| HERO ID | 157029 |
|---|---|
| In Press | No |
| Year | 2004 |
| Title | A method for on-line measurement of water-soluble organic carbon in ambient aerosol particles: Results from an urban site |
| Authors | Sullivan, AP; Weber, RJ; Clements, AL; Turner, JR; Bae, MS; Schauer, JJ |
| Journal | Geophysical Research Letters |
| Volume | 31 |
| Issue | 13 |
| Page Numbers | L13105 |
| Abstract | An instrument for on-line continuous measurement of the water-soluble organic carbon (WSOC) component of aerosol particles is described and results from an urban site in St. Louis are presented. A Particle-into-Liquid Sampler impacts ambient particles, grown to large water droplets, onto a plate and then washes them into a flow of purified water. The resulting liquid is filtered and the carbon content quantified by a Total Organic Carbon analyzer providing continuous six-minute integral measurements with a detection limit of 0.1 ?g C/m3. Summer and fall measurements of WSOC and organic carbon (OC) indicated WSOC/OC ratio typically ranged from 0.40 to 0.80. A diurnal variation in WSOC/OC that correlated with ozone was observed over extended periods in June; however, other periods in August had no correlation. The results suggested that WSOC was composed of a complex mixture of compounds that may contain a significant fraction from secondary organic aerosol formation. |
| Doi | 10.1029/2004GL019681 |
| Wosid | WOS:000222796800001 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000222796800001 |
| Is Public | Yes |
| Is Qa | No |