TY - JOUR
T1 - Bioavailable DDT residues in sediments
T2 - Laboratory assessment of ageing effects using semi-permeable membrane devices
AU - Menchai, Phanchai
AU - Van Zwieten, Lukas
AU - Kimber, Stephen
AU - Ahmad, Nazir
AU - Rao, P. Suresh C
AU - Hose, Grant
PY - 2008/5
Y1 - 2008/5
N2 - We describe the reduction in bioavailability of DDT in contaminated soil after it was incubated as sediment for 365 d. Bioavailability was assessed using semi-permeable membranes. Contaminated soils from three cattle dip sites, one spiked paired uncontaminated site, and one spiked OECD standard soil were studied. Sandy soil with residues of 1880 mg/kg ∑DDT incurred since 1962, initially had 4.6% of ∑DDT available, reducing to 0.6% following 365 d. Clay soil (1108 mg ∑DDT/kg) had 4.1% initially available, reducing to 0.3% after 365 d. Freshly spiked soils had a greater amount of DDT initially available (10.9%), but this reduced to 1.5% by the end of the incubation. Of the DDT congeners, both o,p′-DDD and p,p′-DDD were most bioavailable in the soils, but also had the most significant decrease following incubation. Crown
AB - We describe the reduction in bioavailability of DDT in contaminated soil after it was incubated as sediment for 365 d. Bioavailability was assessed using semi-permeable membranes. Contaminated soils from three cattle dip sites, one spiked paired uncontaminated site, and one spiked OECD standard soil were studied. Sandy soil with residues of 1880 mg/kg ∑DDT incurred since 1962, initially had 4.6% of ∑DDT available, reducing to 0.6% following 365 d. Clay soil (1108 mg ∑DDT/kg) had 4.1% initially available, reducing to 0.3% after 365 d. Freshly spiked soils had a greater amount of DDT initially available (10.9%), but this reduced to 1.5% by the end of the incubation. Of the DDT congeners, both o,p′-DDD and p,p′-DDD were most bioavailable in the soils, but also had the most significant decrease following incubation. Crown
KW - Bioavailability
KW - Contaminated soil
KW - DDT
KW - Risk assessment
KW - Semi-permeable membrane devices
UR - http://www.scopus.com/inward/record.url?scp=41949140318&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2007.07.017
DO - 10.1016/j.envpol.2007.07.017
M3 - Article
C2 - 17854959
AN - SCOPUS:41949140318
SN - 0269-7491
VL - 153
SP - 110
EP - 118
JO - Environmental Pollution
JF - Environmental Pollution
IS - 1
ER -