Concept
Hydrocarbon and PAH contamination. Includes those priority substances listed in Annex II of Directive 2008/105/EC.
| URI | http://vocab.nerc.ac.uk/collection/M14/current/P2/1/ | ||
|---|---|---|---|
| Within Vocab | OSPAR list of defined pressures on the marine environment | ||
| Alternative Labels | |||
| Definition | Increases in the levels of these compounds compared with background concentrations. Naturally occurring compounds, complex mixtures of two basic molecular structures: - straight chained aliphatic hydrocarbons (relatively low toxicity and susceptible to degradation); - multiple ringed aromatic hydrocarbons (higher toxicity and more resistant to degradation). These fall into three categories based on source (includes both aliphatics and polyaromatic hydrocarbons): - petroleum hydrocarbons (from natural seeps, oil spills and surface water run-off); - pyrogenic hydrocarbons (from combustion of coal, woods and petroleum); - biogenic hydrocarbons (from plants and animals). Ecological consequences include tainting, some are acutely toxic, carcinomas, growth defects. | ||
| Date | 2015-09-11T13:08:17 | ||
| Identifier | SDN:M14::P2 | ||
| Note | accepted | ||
| Is Version Of | P2 | ||
| version | 1 | ||
| Broader | M15:P |
Pollution and other chemical changes | |
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