Characterization of trace elements and ions in PM10 and PM2.5 emitted from animal confinement buildings

Xufei Yang, Xinlei Wang, Yuanhui Zhang, Jongmin Lee, Jingwei Su, Richard S. Gates

Research output: Contribution to journalArticlepeer-review

Abstract

Chemical characterization of PM emanating from animal confinement buildings can provide essential information for receptor modeling-based PM source apportionment as well as health effects assessment. In this study, PM10 and PM2.5 samples were collected from twelve swine (farrowing, gestation, weaning, and finishing) and six poultry (layer hen and tom turkey) confinement buildings in the U.S. Midwest and their inorganic composition, in terms of trace elements and ions, was investigated. A total of 23 species were identified and quantified, including Al, B, Ba, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, S, Si, Sr, Ti, Zn, Cl-, NO3-, SO42- and NH4+. The total mass fraction of identified species was typically less than 16%. NH4+ was detected in low contents (<1% wt.) in collected PM samples, suggesting that the majority of NH3-N emissions were in gas form and the formation of NH4+-containing secondary aerosols is insignificant in animal confinement buildings. Several multivariate analysis tools prevalent in ecology research were implemented for examining variability in PM inorganic compositions. Results showed that PM inorganic composition varied significantly with animal building type. Seasons had no significant effect on PM10 and a significant but weak effect on PM2.5 inorganic compositions. Compared to PM10 samples, PM2.5 samples from different types of animal confinement buildings were more similar in inorganic composition.

Original languageEnglish (US)
Pages (from-to)7096-7104
Number of pages9
JournalAtmospheric Environment
Volume45
Issue number39
DOIs
StatePublished - Dec 2011

Keywords

  • Animal confinement building
  • Elements
  • Inorganic composition
  • Ions
  • Multivariate analysis
  • PM
  • PM

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)

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