Gas-particle distributions, sources and health effects of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs) in Venice aerosols

Sci Total Environ. 2014 Apr 1:476-477:393-405. doi: 10.1016/j.scitotenv.2014.01.036. Epub 2014 Jan 30.

Abstract

Air samples were collected in Venice during summer 2009 and 2012 to measure gas and particulate concentrations of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). PCB-11, considered a marker for non-Aroclor contamination of the environment, was found for the first time in the Venetian lagoon and in Europe. An investigation on sources has been conducted, evidencing traffic as the major source of PAHs, whereas PCBs have a similar composition to Aroclor 1248 and 1254; in 2009 a release of PCN-42 has been hypothesized. Toxicological evaluation by TCA and TEQ methods, conducted for the first time in Venice air samples, identified BaP, PCB-126 and PCB-169 as the most important contributors to the total carcinogenic activity of PAHs and the total dioxin-like activity of PCBs and PCNs.

Keywords: Aerosols; Diagnostic ratio; PCB-11; Persistent organic pollutants; Toxicological equivalency method; Venice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aerosols
  • Air Pollutants / analysis*
  • Air Pollution / statistics & numerical data
  • Environmental Monitoring*
  • Humans
  • Italy
  • Naphthalenes / analysis*
  • Polychlorinated Biphenyls / analysis*
  • Polycyclic Aromatic Hydrocarbons / analysis*

Substances

  • Aerosols
  • Air Pollutants
  • Naphthalenes
  • Polycyclic Aromatic Hydrocarbons
  • Polychlorinated Biphenyls