Linked Life Data

21504212

Source:http://linkedlifedata.com/resource/pubmed/id/21504212

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2011-5-12
pubmed:abstractText
Arsenic (As) contamination of paddy soils threatens rice cultivation and the health of populations relying on rice as a staple crop. In the present study, isotopic dilution techniques were used to determine the chemically labile (E value) and phytoavailable (L value) pools of As in a range of paddy soils from Bangladesh, India, and China and two arable soils from the UK varying in the degree and sources of As contamination. The E value accounted for 6.2-21.4% of the total As, suggesting that a large proportion of soil As is chemically nonlabile. L values measured with rice grown under anaerobic conditions were generally larger than those under aerobic conditions, indicating increased potentially phytoavailable pool of As in flooded soils. In an incubation study, As was mobilized into soil pore water mainly as arsenite under flooded conditions, with Bangladeshi soils contaminated by irrigation of groundwater showing a greater potential of As mobilization than other soils. Arsenic mobilization was best predicted by phosphate-extractable As in the soils.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1520-5851
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4262-9
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Assessing the labile arsenic pool in contaminated paddy soils by isotopic dilution techniques and simple extractions.
pubmed:affiliation
Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't