Spatial and seasonal distribution of aerosol chemical components in New York City

(2) Road dust and other tracers of traffic-generated air pollution

Richard E. Peltier, Kevin Ryan Cromar, Yingjun Ma, Zhi Hua Fan, Morton Lippmann

Research output: Contribution to journalArticle

Abstract

We describe spatial and temporal patterns of seven chemical elements commonly observed in fine particulate matter (PM) and thought to be linked to roadway emissions that were measured at residential locations in New York City (NYC). These elements, that is, Si, Al, Ti, Fe, Ba, Br, and black carbon (BC), were found to have significant spatial and temporal variability at our 10 residential PM 2.5 sampling locations. We also describe pilot study data of near-roadway samples of both PM 10-2.5 and PM 2.5 chemical elements of roadway emissions. PM 2.5 element concentrations collected on the George Washington Bridge (GWB) connecting NYC and New Jersey were higher that similar elemental concentration measured at residential locations. Coarse-particle elements (within PM 10-2.5) on the GWB were 10-100 times higher in concentration than their PM 2.5 counterparts. Roadway elements were well correlated with one another in both the PM 2.5 and PM 10-2.5 fractions, suggesting common sources. The same elements in the PM 2.5 collected at residential locations were less correlated, suggesting either different sources or different processing mechanisms for each element. Despite the fact that these elements are only a fraction of total PM 2.5 or PM 10-2.5 mass, the results have important implications for near-roadway exposures where elements with known causal links to health effects are shown to be at elevated concentrations in both the PM 2.5 and PM 10-2.5 size ranges.

Original languageEnglish (US)
Pages (from-to)484-494
Number of pages11
JournalJournal of Exposure Science and Environmental Epidemiology
Volume21
Issue number5
DOIs
StatePublished - Sep 2011

Fingerprint

Particulate Matter
Air Pollution
Aerosols
Dust
Air pollution
Chemical elements
Carbon black
Health
Sampling
Processing
Soot

Keywords

  • child exposure/health
  • criteria pollutants
  • environmental monitoring
  • epidemiology
  • inhalation exposure
  • metals

ASJC Scopus subject areas

  • Pollution
  • Public Health, Environmental and Occupational Health
  • Toxicology
  • Epidemiology

Cite this

Spatial and seasonal distribution of aerosol chemical components in New York City : (2) Road dust and other tracers of traffic-generated air pollution. / Peltier, Richard E.; Cromar, Kevin Ryan; Ma, Yingjun; Fan, Zhi Hua; Lippmann, Morton.

In: Journal of Exposure Science and Environmental Epidemiology, Vol. 21, No. 5, 09.2011, p. 484-494.

Research output: Contribution to journalArticle

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