DETERMINATION OF PARTICLE-ASSOCIATED NITRO-PAH USING HPLC/CHEMILUMINESCENCE DETECTION SYSTEM

摘要

Nitrated policyclic aromatic hydrocarbons (nitro-PAH), which have been found in airborne particles, generally have high mutagenic activity, and some of them are known to be carcinogenic' For example, 2-nitrotriphenylene (2-NTP) has strong mutagenicity although the parent triphenylene does not exhibit mutagenic activity, and the concentration of 2-NTP in the atmosphere is relatively high.2 Nevertheless, sources of atmospheric 2-NTP are still unknown. In order to understand the controlling factors of concentration of atmospheric 2-NTP, it is necessary to observe ambient 2-NTP, other typical nitro-PAH, and major gaseous atmospheric pollutants simultaneously with high time resolution.