Quantifying Hazardous Species in Particulate Matter Derived from Fossil-Fuel Combustion
- 5 February 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 38 (6), 1836-1842
- https://doi.org/10.1021/es0348748
Abstract
An analysis protocol that combines X-ray absorption near-edge structure spectroscopy with selective leaching has been developed to examine hazardous species in size-segregated particulate matter (PM) samples derived from the combustion of fossil fuels. The protocol has been used to identify and determine quantitatively the amounts of three important toxic species in combustion-derived PM: viz., nickel sulfides in residual oil fly ash (ROFA) PM, and Cr(VI) and As(III) species in coal fly ash PM. Although it has been assumed that these toxic species might exist in PM derived from fossil-fuel combustion, the results presented here constitute the first direct determination of them in combustion-derived PM and their potential bioavailability. Detailed information on the presence of these toxic species in PM samples is of significant interest to epidemiological and toxicological studies of the health effects of both source and ambient PM. Additionally, information is obtained on insoluble forms that may be useful for source attribution and on the distribution of phases between size fractions that may be related to formation mechanisms of specific toxic species during combustion.Keywords
This publication has 27 references indexed in Scilit:
- X-ray Absorption Fine Structure (XAFS) Spectroscopic Characterization of Emissions from Combustion of Fossil FuelsInternational Journal of the Society of Materials Engineering for Resources, 2002
- ACUTE LUNG INJURY FROM INTRATRACHEAL EXPOSURE TO FUGITIVE RESIDUAL OIL FLY ASH AND ITS CONSTITUENT METALS IN NORMOAND SPONTANEOUSLY HYPERTENSIVE RATSInhalation Toxicology, 2001
- Association of fine particulate matter from different sources with daily mortality in six U.S. cities.Environmental Health Perspectives, 2000
- ASSOCIATION BETWEEN PARTICULATE- AND GAS-PHASE COMPONENTS OF URBAN AIR POLLUTION AND DAILY MORTALITY IN EIGHT CANADIAN CITIESInhalation Toxicology, 2000
- Direct speciation of chromium in coal combustion by-products by X-ray absorption fine-structure spectroscopyFuel, 1999
- Chemical Speciation of Nickel in Residual Oil AshEnergy & Fuels, 1998
- Fine Particle Emissions from Heavy Fuel Oil Combustion in a Firetube Package BoilerCombustion Science and Technology, 1998
- In situ x-ray absorption fine structure spectroscopy investigation of sulfur functional groups in coal during pyrolysis and oxidationEnergy & Fuels, 1992
- Quantitative analysis of all major forms of sulfur in coal by x-ray absorption fine structure spectroscopyEnergy & Fuels, 1991
- A review of the arsenic cycle in natural watersWater Research, 1972