干旱区生态环境知识资源中心(Arid): Control of Toxic Chemicals in Puget Sound, Phase 3: Study of Atmospheric Deposition of Air Toxics to the Surface of Puget Sound

Arid

DOI	10.2172/991088
报告编号	PNNL-19533
来源ID	OSTI_ID: 991088
	Control of Toxic Chemicals in Puget Sound, Phase 3: Study of Atmospheric Deposition of Air Toxics to the Surface of Puget Sound
	Brandenberger, Jill M.; Louchouarn, Patrick; Kuo, Li-Jung; Crecelius, Eric A.; Cullinan, Valerie I.; Gill, Gary A.; Garland, Charity R.; Williamson, J. B.; Dhammapala, R.
英文摘要	The results of the Phase 1 Toxics Loading study suggested that runoff from the land surface and atmospheric deposition directly to marine waters have resulted in considerable loads of contaminants to Puget Sound (Hart Crowser et al. 2007). The limited data available for atmospheric deposition fluxes throughout Puget Sound was recognized as a significant data gap. Therefore, this study provided more recent or first reported atmospheric deposition fluxes of PAHs, PBDEs, and select trace elements for Puget Sound. Samples representing bulk atmospheric deposition were collected during 2008 and 2009 at seven stations around Puget Sound spanning from Padilla Bay south to Nisqually River including Hood Canal and the Straits of Juan de Fuca. Revised annual loading estimates for atmospheric deposition to the waters of Puget Sound were calculated for each of the toxics and demonstrated an overall decrease in the atmospheric loading estimates except for polybrominated diphenyl ethers (PBDEs) and total mercury (THg). The median atmospheric deposition flux of total PBDE (7.0 ng/m2/d) was higher than that of the Hart Crowser (2007) Phase 1 estimate (2.0 ng/m2/d). The THg was not significantly different from the original estimates. The median atmospheric deposition flux for pyrogenic PAHs (34.2 ng/m2/d; without TCB) shows a relatively narrow range across all stations (interquartile range: 21.2- 61.1 ng/m2/d) and shows no influence of season. The highest median fluxes for all parameters were measured at the industrial location in Tacoma and the lowest were recorded at the rural sites in Hood Canal and Sequim Bay. Finally, a semi-quantitative apportionment study permitted a first-order characterization of source inputs to the atmosphere of the Puget Sound. Both biomarker ratios and a principal component analysis confirmed regional data from the Puget Sound and Straits of Georgia region and pointed to the predominance of biomass and fossil fuel (mostly liquid petroleum products such as gasoline and/or diesel) combustion as source inputs of combustion by-products to the atmosphere of the region and subsequently to the waters of Puget Sound.
出版年	2010
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	02 PETROLEUM ; 09 BIOMASS FUELS ; BIOMASS ; BY-PRODUCTS ; COMBUSTION ; DEPOSITION ; ELEMENTS ; ETHERS ; FOSSIL FUELS ; GASOLINE ; MERCURY ; PETROLEUM PRODUCTS ; PUGET SOUND ; RIVERS ; RUNOFF ; SEQUIM BAY ; TRACE AMOUNTS Toxic Chemicals in Puget Sound ; Phase 3: Study of Atmospheric Deposition ; Air Toxics ; Surface of Puget Sound
URL	http://www.osti.gov/scitech/servlets/purl/991088
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/270061
推荐引用方式 GB/T 7714	Brandenberger, Jill M.,Louchouarn, Patrick,Kuo, Li-Jung,et al. Control of Toxic Chemicals in Puget Sound, Phase 3: Study of Atmospheric Deposition of Air Toxics to the Surface of Puget Sound,2010.