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170319s2006 pau|||||o|||||||||||eng|| |
| 024 |
7 |
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|a 10.1520/STP37687S
|2 doi
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| 035 |
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|a (IN-ChSCO)ASTMSTP37687S
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| 040 |
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|a ASTM
|c SCOPE
|b eng
|e rda
|d PAU
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| 041 |
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|a eng
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| 100 |
1 |
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|a McCallum, D.,
|e author
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| 245 |
1 |
4 |
|a The Temporal and Spatial Dynamics of Trace Metals in Sediments of a Highly Urbanized Watershed /
|c LY. Li, G. Mattu, D. McCallum, K. Hall, M. Chen
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| 264 |
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1 |
|a West Conshohocken, Pa. :
|b ASTM International,
|c 2006
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| 300 |
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|a 1 online resource (11 pages) :
|b illustrations, figures, tables
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| 336 |
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|a text
|2 rdacontent
|b txt
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| 337 |
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|a computer
|2 rdamedia
|b c
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| 338 |
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|a online resource
|2 rdacarrier
|b cr
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| 347 |
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|a text file
|b PDF
|2 rda
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| 504 |
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|a Includes bibliographical references
|b 28
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| 506 |
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|a Restricted for use by site license.
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|a The Brunette watershed (7200 ha) is located in the urbanized metropolitan area of Greater Vancouver, Canada. It is an area of high traffic density and extensive impervious surfaces (paved roads and roof tops). This watershed provides an excellent area for the study of the spatial and temporal trace metal contamination in sediments. Street surface, stream, and lake sediments were collected over a 25-year period and analyzed for total and acid-extractable trace metals (Cu, Fe, Mn, Pb, and Zn). Lead concentrations in all areas have decreased dramatically, directly as a result of the discontinuation of lead addition to fuels in the 1970s. The mean concentration of total lead in stream sediments has decreased from 230 in 1973 to 134 and 36-66 mg/kg in 1993 and 1997-1998, respectively. Manganese, especially the acid extractable fraction, increased during the early 1990s when MMT replaced tetraethyl lead as an antiknock compound. The 0.5 M HCl extractable manganese in stream sediments has increased from 18 in 1973 to 545 in 1993 and 162-273 mg/kg in 1997-1998. Burnaby Lake, a shallow (Zav=1.0 m, 140 ha) lake, has acted as a sink for trace metal contaminated sediments. Highest trace metal levels are found in surface sediments at the east end of the lake (where Cu, Pb, and Zn were 159, 179, and 529 mg/kg) containing more silt (24 %) and higher organic matter (32.5 %). The sandy delta of Still Creek (silt<4 %, organic matter 5.6 %), which contributes over 50 % of the flow to the lake, has lower trace metal levels (Cu, Pb, and Zn were 72, 77, and 207 mg/kg) even though the creek is the predominant source of trace metals transported to the lake
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| 541 |
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|a ASTM International
|3 PDF
|c Purchase price
|h USD25
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| 588 |
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|a Description based on publisher's website, viewed March 19, 2017
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| 650 |
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|a Communication and traffic
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| 650 |
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|a Land use
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| 650 |
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|a Sediment
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| 650 |
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|a Soil pollution
|v Congresses
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| 650 |
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|a Soil pollution
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| 650 |
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|a Soil remediation
|v Congresses
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| 650 |
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|a Soil remediation
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| 650 |
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|a Trace elements
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| 650 |
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|a Watershed
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| 650 |
1 |
4 |
|a Watershed
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| 650 |
2 |
4 |
|a Land use
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| 650 |
2 |
4 |
|a Sediment
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| 650 |
2 |
4 |
|a Trace metals
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| 650 |
2 |
4 |
|a Traffic
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| 700 |
1 |
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|a Chen, M.,
|e author
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| 700 |
1 |
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|a Hall, K.,
|e author
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| 700 |
1 |
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|a Li, LY.,
|e author
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| 700 |
1 |
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|a Mattu, G.,
|e author
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| 710 |
2 |
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|a ASTM International
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| 710 |
2 |
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|a American Society for Testing and Materials
|t Selected Technical Papers.
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| 710 |
2 |
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|a American Society for Testing and Materials
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| 740 |
0 |
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|a ASTM digital library
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| 999 |
1 |
0 |
|i e1a33d03-d2e1-460c-a6c4-1d0530c430d1
|l 9978998672803681
|s US-PU
|m temporal_and_spatial_dynamics_of_trace_metals_in_sediments_of_a_highly_____2006_______astmia________________________________________mccallum__d________________________e
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