PCDD/Fs in soil samples collected in the vicinity of a municipal solid waste incinerator: human health risks.
The concentrations of polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) were determined in soil samples taken from 24 sites in the vicinity of a municipal solid waste incinerator (Montcada, Barcelona, Spain). Samples were collected within a radius of 3 km in each of the three main directions of the wind rose in that area. Hepta- and octa-CDDs were the predominant congeners and contributors to TEQ. PCDD/F levels ranged from 0.30 to 44.26 ng TEQ/kg (dry matter), with median and mean values of 3.52 and 6.91 ng TEQ/kg, respectively. The highest and lowest PCDD/F concentrations were found at 750 m (44.26 ng TEQ/kg) and 3000 m (0. 30 ng TEQ/kg) from the stack, while the PCDD/PCDF ratio was 1.78. The health risk analysis of the data shows that the PCDD/F intake from soils is substantially lower than the tolerable daily intake for toxicologic (other than cancer) effects of PCDD/Fs.
Schuhmacher
M
M
Environmental Engineering Laboratory, "Rovira i Virgili" University, 43005 Tarragona, Spain.
Xifró
A
A
Llobet
J M
JM
de Kok
H A
HA
Domingo
J L
JL
D001572:Benzofurans / Q000032:analysis*; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D012037:Refuse Disposal; D012307:Risk Factors; D012989:Soil Pollutants / Q000032:analysis*; D013030:Spain; D014504:Urban Health
D001572:Benzofurans; D006843:Hydrocarbons, Chlorinated; D010573:Pesticide Residues; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants