Effects of oil pipeline explosion on ambient particulate matter and their associated polycyclic aromatic hydrocarbons.

Abstract

Effects of the oil pipeline explosion on PM(2.5)-associated polycyclic aromatic hydrocarbons (PAHs) and their substituted (alkylated, nitrated, oxygenated, hydroxyl and chlorinated) derivatives are assessed near the accident scene of Qingdao, China. Compared with those in TSP-PM(2.5), gaseous phase, burn residue and unburned crude oil, eighty-nine PAHs in PM(2.5) are identified and quantified to investigate the composition, temporal and spatial distribution, and sources. The concentrations of PM(2.5)-associated parent PAHs increase approximately seven times from the non-explosion samples to the explosion samples (mean ± standard deviation: 112 ± 2 vs 764 ± 15 ng/m(3)), while some substituted products (nitro- and oxy-) increase by two orders of magnitude (3117 ± 156 pg/m(3) vs 740 ± 37 ng/m(3)). The toxicity evaluation indicates the BaP equivalent concentrations (based on the US EPA's toxicity factors) in PM(2.5) are much higher than those in the other phases, especially for a long duration after the tragic accident.

• Authors: Yue Zhao, Lixin Cao, Qing Zhou, Qiming Que
• Journal: Environmental pollution (Barking, Essex : 1987) (Environ Pollut) Vol. 196 Pg. 440-9 (Jan 2015) ISSN: 1873-6424 [Electronic] England
• PMID: 25467693 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Air Pollutants
• Particulate Matter
• Polycyclic Aromatic Hydrocarbons

Topics

• Air Pollutants (analysis)
• China
• Environmental Monitoring
• Explosions
• Particulate Matter (analysis)
• Petroleum Pollution
• Polycyclic Aromatic Hydrocarbons (analysis)