| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Environmental Chemistry Lab, USDA ARS BARC West, Beltsville, MD.
Dep. of Agronomy, Univ. of Maryland, College Park, MD.
National Risk Management Research Lab, USEPA, Cincinnati, OH.
* Corresponding author (sbrown{at}asrr.arsusda.gov).
ABSTRACT
A field study was conducted to assess the phytoavailability of Cd in long-term biosolids-amended plots managed at high and low pH. The experiment, established 13 to 15 yr prior to the present cropping, on a Christiana fine sandy loam soil (a clayey, kaolinitic, mesic Typic Paleudult) used a variety of biosolids. Two of the biosolids had total Cd concentrations of 13.4 and 210 mg kg–1. A Cd salt treatment, with Cd added to soil at a rate equivalent to the Cd added by the higher Cd biosolids applied at 100 Mg ha–1, was also included. The lettuce (Lactuca sativa var. longifolia) cultivar (Paris Island Cos) used in the initial study was also used in the current study. Lettuce Cd was compared between treatments, and in relation to the soil Cd/soil organic C (OC) ratio. There has been no significant increase in plant Cd since the initial cropping. With 16% of the biosolids added OC remaining, lettuce grown on the soil amended with the more contaminated biosolids was not different than that of the initial cropping. Further, significantly less Cd was taken up by lettuce grown on biosolids-amended soil than lettuce grown on soil amended with equivalent rates of Cd salt. The Cd concentration in lettuce grown in the low Cd biosolids treatment was not different from the control. These results indicate that the potential hazards associated with food chain transfer of biosolids-applied Cd are substantially lower than equivalent Cd salt treatments, and that the hazards do not increase over time.
S.L. Brown, current address, Univ. of Washington, College of Forest Resources, Seattle, WA.
Received for publication May 29, 1996.
This article has been cited by other articles:
|
|
 |
|
  G. M. Hettiarachchi, K. G. Scheckel, J. A. Ryan, S. R. Sutton, and M. Newville {micro}-XANES and {micro}-XRF Investigations of Metal Binding Mechanisms in Biosolids J. Environ. Qual., January 5, 2006; 35(1): 342 - 351. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. F. Sukkariyah, G. Evanylo, L. Zelazny, and R. L. Chaney Cadmium, Copper, Nickel, and Zinc Availability in a Biosolids-Amended Piedmont Soil Years after Application J. Environ. Qual., November 7, 2005; 34(6): 2255 - 2262. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
I. W. Oliver, A. Hass, G. Merrington, P. Fine, and M. J. McLaughlin Copper Availability in Seven Israeli Soils Incubated with and without Biosolids J. Environ. Qual., March 1, 2005; 34(2): 508 - 513. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. T. Basta, J. A. Ryan, and R. L. Chaney Trace Element Chemistry in Residual-Treated Soil: Key Concepts and Metal Bioavailability J. Environ. Qual., January 1, 2005; 34(1): 49 - 63. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Brown, M. Sprenger, A. Maxemchuk, and H. Compton Ecosystem Function in Alluvial Tailings after Biosolids and Lime Addition J. Environ. Qual., January 1, 2005; 34(1): 139 - 148. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. C. Granato, R. I. Pietz, G. J. Knafl, C. R. Carlson Jr., P. Tata, and C. Lue-Hing Trace Element Concentrations in Soil, Corn Leaves, and Grain after Cessation of Biosolids Applications J. Environ. Qual., November 1, 2004; 33(6): 2078 - 2089. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. J. Smernik, I. W. Oliver, and M. J. McLaughlin Changes in the Nature of Sewage Sludge Organic Matter During a Twenty-One-Month Incubation J. Environ. Qual., September 1, 2004; 33(5): 1924 - 1929. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. G. Scheckel and J. A. Ryan Spectroscopic Speciation and Quantification of Lead in Phosphate-Amended Soils J. Environ. Qual., July 1, 2004; 33(4): 1288 - 1295. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Brown, R. Chaney, J. Hallfrisch, J. A. Ryan, and W. R. Berti In Situ Soil Treatments to Reduce the Phyto- and Bioavailability of Lead, Zinc, and Cadmium J. Environ. Qual., March 1, 2004; 33(2): 522 - 531. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. M. Hettiarachchi, J. A. Ryan, R. L. Chaney, and C. M. La Fleur Sorption and Desorption of Cadmium by Different Fractions of Biosolids-Amended Soils J. Environ. Qual., September 1, 2003; 32(5): 1684 - 1693. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Keller, S. P. McGrath, and S. J. Dunham Trace Metal Leaching through a Soil-Grassland System after Sewage Sludge Application J. Environ. Qual., September 1, 2002; 31(5): 1550 - 1560. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Z. Li, J. A. Ryan, J.-L. Chen, and S. R. Al-Abed Adsorption of Cadmium on Biosolids-Amended Soils J. Environ. Qual., May 1, 2001; 30(3): 903 - 911. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Journal of Natural Resources and Life Sciences Education |
Vadose Zone Journal | ||||
| Soil Science Society of America Journal | Journal of Plant Registrations | The Plant Genome | |||
