Occurrence and Spatial Distribution of Individual Polychlorinated Biphenyl Congeners in Residential Soils from East Chicago, Southwest Lake Michigan

Overview

Journal Sci Total Environ

Date 2022 Aug 5

PMID 35931157

Authors

Andres Martinez

Jason B X Hua

Ezazul Haque

Keri C Hornbuckle

Peter S Thorne

Affiliations

Soon will be listed here.

Abstract

We report individual polychlorinated biphenyl congeners and the sum of all congeners (ΣPCB) in residential soils of East Chicago, Indiana. ΣPCB in soils ranged from 20 to 1700 ng/g dry weight (DW), with a geometric mean of 120 ng/g DW. These values are significantly higher than other locations, but similar or lower to locations nearby well-known PCB contamination sites. No PCB spatial distribution pattern was observed. PCB concentrations increase with total organic carbon in the soils and proximity to Indiana Harbor and Ship Canal (IHSC), where sediments are contaminated with PCBs. Most samples are similar in their PCB distribution and Aroclor 1254 yielded the highest similarity to all the samples. A fifth of the samples highly resemble other PCB profiles such as EPA background and Cedar Rapids Iowa soils, and volatilization from Lake Michigan, whereas volatilization from IHSC could not explain the PCBs found in soils. IHSC was expected to be the main source of PCBs in the nearby soils. It is possible that soils are impacted by variety of known and unknown sources, including volatilization from Lake Michigan, resulting in a regional PCB signal. Although PCB concentrations are higher than other locations, samples were below the current US EPA non-cancer residential soil level remediation goal for dioxin TEQ.

Citing Articles

Multi-omics inhalation toxicity assessment of urban soil dusts contaminated by multiple legacy sources of lead (Pb).

Haque E, Adamcakova-Dodd A, Jing X, Wang H, Jarmusch A, Thorne P J Hazard Mater. 2024; 480:136120.

PMID: 39405708 PMC: 11698073. DOI: 10.1016/j.jhazmat.2024.136120.

Occurrence and spatial distribution of individual polychlorinated biphenyl congeners in residential soils from East Chicago, southwest Lake Michigan.

Martinez A, Hua J, Haque E, Hornbuckle K, Thorne P Sci Total Environ. 2022; 850:157705.

PMID: 35931157 PMC: 9907466. DOI: 10.1016/j.scitotenv.2022.157705.

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