Sources and movement of organic chemicals in the Delaware River
| Autor: | Linda S. Sheldon, Ronald A. Hites |
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| Rok vydání: | 1979 |
| Předmět: | |
| Zdroj: | Environmental Science & Technology. 13:574-579 |
| ISSN: | 1520-5851 0013-936X |
| Popis: | The transport of industrial organic chemicals (e.g., phenol, chlorotoluene, naphthalene, and plasticizers) from their source, into the Delaware River, through various treatment facilities, and into Philadelphia's finished drinking water was studied using water samples collected in Aug. 1977. Solvent extraction, liquid chromatographic cleanup, and gas chromatographic mass spectrometry were used for compound separation and identification. The study confirmed that a certain plant was the source of several of the compounds observed. Many of these compounds circulated into Philadelphia's drinking water and the various water and waste treatment facilities had a minimal effect on the organic levels. Treatment processes were effective for several compounds, e.g., hydrocarbons, ethylene glycol compounds, and phenols, but the compounds of greatest environmental significance may be the least affected by the waste treatment processes. For all chemicals, dilution processes were responsible for the largest reduction in organic concentrations. Results were substantiated by a ten-week sampling program designed to monitor seven selected waste chemicals. |
| Databáze: | OpenAIRE |
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