《Seasonal variation and gas/particle partitioning of atmospheric halogenated polycyclic aromatic hydrocarbons and the effects of meteorological conditions in Ulsan, South Korea》 was written by Vuong, Quang Tran; Thang, Phan Quang; Nguyen, Tuyet Nam Thi; Ohura, Takeshi; Choi, Sung-Deuk. Recommanded Product: 523-27-3 And the article was included in Environmental Pollution (Oxford, United Kingdom) in 2020. The article conveys some information:
Atm. halogenated polycyclic aromatic hydrocarbons (Halo-PAHs) and parent PAHs were monitored in Ulsan, South Korea for one year (Jan.-Dec. 2015) to investigate their seasonal patterns, gas/particle partitioning behavior, and the impact of meteorol. conditions. The mean concentrations of 24 chlorinated PAHs, 11 brominated PAHs, and 13 parent PAHs in the gaseous and particulate phases were 8.64 and 9.64 pg/m3, 11.6 and 1.62 pg/m3, and 2.17 and 2.40 ng/m3, resp. Winter had the highest ClPAH and PAH levels, with significant contributions from poly-chlorine groups and high-mol.-weight compounds However, BrPAHs showed reverse patterns with the highest concentration in summer and the dominant gaseous fraction throughout the year. In contrast, the effects of the temperature inversion layer and atm. transport from the outside of Ulsan were more apparent for ClPAHs and PAHs, particularly in winter and spring. Regarding gas/particle partitioning, Halo-PAHs exhibited different seasonal behaviors from those of parent PAHs. This study implies that Halo-PAHs and parent PAHs might not share the same atm. behavior, possibly due to different characteristics in atm. reactions with other chems. and particle-size distribution. However, there have been limited studies about the formation of Halo-PAHs and their physicochem. properties; hence, further in-depth investigations are of vital importance. In the experiment, the researchers used 9,10-Dibromoanthracene(cas: 523-27-3Recommanded Product: 523-27-3)
9,10-Dibromoanthracene(cas: 523-27-3) is a dibrominated polycyclic aromatic hydrocarbon (PAH). 9,10-Dibromoanthracene is often used as an energy acceptor and activator in reactions that produce chemiluminescence.Recommanded Product: 523-27-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary