POLYCYCLIC AROMATIC HYDROCARBONS. PAHs. What are PAHs?. group of organic compounds t wo or more aromatic (benzene) rings are fused together. potential health risk due to their inner chemical stability, high reactivity to different types of degradation and high toxicity to living organisms
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PAHs enter air as releases from volcanoes, forest fires, residental wood burning and exhausts from cars.
Some PAH particles can readily evaporate into the air from soil or surface waters.
We are most likely to be exposed to PAH vapors or PAHs that are attached to dust and other particles in the air.
Samples of PAHs are mostly analysed by HPLC using fluorence detection, or by gas chromatography method with flame ionizazion detection, or mass spectrometry.
lists of pollutants – seznam
pale - bledý
to vary - lišit se
faint - mdlý
to release - uvolňovat
exhaust - výfukový plyn
discharge - vylučování
wastewater treatment plant -
čistička odp. vod
wastewater treatment plant - čistička odp. vod
to stick - přilnout
to settle - usadit se
vapor - pára
to develope - rozvinout se
ingested - přijímat potravou
to be available - být k dispozici
to attach - připojit
within - uvnitř
body tissues - tělní tkáněVocabulary