The Biodegradation of Dispersed Oil Does Not Induce Toxicity at Environmentally-Relevant Concentrations
| Autor: | Josh D. Butler, Aaron D. Redman, Bryan M. Hedgpeth, Roger C. Prince |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Americamysis bahia
010504 meteorology & atmospheric sciences biology Chemistry 010501 environmental sciences Biodegradation biology.organism_classification 01 natural sciences Dispersant Hopanoids Acute toxicity Oil droplet Environmental chemistry Toxicity Dispersion (chemistry) 0105 earth and related environmental sciences |
| Zdroj: | Open Journal of Marine Science. :113-120 |
| ISSN: | 2161-7392 2161-7384 |
| Popis: | Applying dispersants to spilled crude oil results in an oil in water dispersion of microscopic oil droplets that soon dilutes to levels below 1 ppm oil. These levels are substantially below those known to induce acute toxicity in 96-hour tests. We show here that oil hydrocarbons are biodegraded very rapidly in such situations (50% loss in 4 days in this experiment), and that no increase in acute toxicity to mysids (Americamysis bahia) is seen during this biodegradation, or over the following 20 days as the oil is further degraded (78% loss of detectable hydrocarbons in this experiment). |
| Databáze: | OpenAIRE |
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