Trace organic compounds in rain—III. Particle scavenging of neutral organic compounds
Ligocki, MP; Leuenberger, C; Pankow, JF
| HERO ID | 4800 |
|---|---|
| In Press | No |
| Year | 1985 |
| Title | Trace organic compounds in rain—III. Particle scavenging of neutral organic compounds |
| Authors | Ligocki, MP; Leuenberger, C; Pankow, JF |
| Journal | Atmospheric Environment |
| Volume | 19 |
| Issue | 10 |
| Page Numbers | 1619-1629 |
| Abstract | Concurrent measurements were obtained for a number of neutral organic compounds associated with suspended particles in rain and in the atmosphere. Particle scavenging ratios (Wp) were determined and compared to gas scavenging ratios (Wg) obtained concurrently, in order to determine the relative importance of particle vs gas scavenging for organic compounds. The measured Wp values were much higher for polycylic aromatic hydrocarbons (PAHs) of molecular weight (MW) ⩽ 202, alkanes and phthalate esters than they were for PAHs of MW > 202. The Wp values ranged from 102 to 105 and averaged 14,000, a lower value than the 105–106 which has been measured for many inorganics. The low scavenging ratios are consistent with a below-cloud process for the particles containing these organic compounds. The compounds with relatively higher Wp values may be associated to a larger extent with large particles, which are more efficiently scavenged below-cloud. Due to the low Wp values found for most of the PAHs, particle scavenging was less important than gas scavenging for those compounds. |
| Doi | 10.1016/0004-6981(85)90214-8 |
| Wosid | WOS:A1985ATH0800009 |
| Url | https://linkinghub.elsevier.com/retrieve/pii/0004698185902148 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Precipitation scavenging; particle scavenging; scavenging; scavenging ratios; organic compounds; polycyclic aromatic hydrocarbons; pesticides; phthalates |
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