Legacy and Contaminants of Emerging Concern in Tree Swallows Along an Agricultural to Industrial Gradient: Maumee River, Ohio

Exposure to multiple classes of contaminants, both legacy and contaminants of emerging concern (CECs), were assessed in tree swallow (Tachycineta bicolor) tissue and diet samples from 6 sites along the Maumee River, Ohio, USA, to understand both exposure and possible effects of exposure to those CEC...

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Bibliographic Details
Published in:Environmental toxicology and chemistry 2020-10, Vol.39 (10), p.1936-1952
Main Authors: Custer, Christine M., Custer, Thomas W., Dummer, Paul M., Schultz, Sandra, Tseng, Chi Yen, Karouna‐Renier, Natalie, Matson, Cole W.
Format: Article
Language:English
Subjects:
Agriculture
Animals
Aromatic hydrocarbons
Atrazine
Bioaccumulation
Biphenyl
Birds
Chemical wastewater
Consumer products
Contaminants
Cosmetics - analysis
Cosmetics - metabolism
Cytochrome
Cytochrome P450
Cytochromes P450
DEET
Desethylatrazine
DNA damage
Eggs
Environmental Monitoring - methods
Ethers
Exposure
Halogenated Diphenyl Ethers - analysis
Halogenated Diphenyl Ethers - metabolism
Herbicides
Hydrocarbons, Aromatic - analysis
Hydrocarbons, Aromatic - metabolism
Industry
Insecticides
Intensive farming
Lakes
Lakes - chemistry
Maumee River
Metabolites
Ohio
PCB
Perfluorinated substances
Polybrominated diphenyl ethers
Polychlorinated biphenyls
Polychlorinated Biphenyls - analysis
Polychlorinated Biphenyls - metabolism
Polycyclic Aromatic Hydrocarbons - analysis
Polycyclic Aromatic Hydrocarbons - metabolism
Public domain
Rivers
Rivers - chemistry
Swallows - metabolism
Thyroid
Tree swallows
Urbanization
Waste Water - chemistry
Wastewater treatment
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - metabolism
Wisconsin
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Summary:Exposure to multiple classes of contaminants, both legacy and contaminants of emerging concern (CECs), were assessed in tree swallow (Tachycineta bicolor) tissue and diet samples from 6 sites along the Maumee River, Ohio, USA, to understand both exposure and possible effects of exposure to those CECs for which there are little avian data. The 6 sites represented a gradient from intensive agriculture upstream to highly urbanized and industrial landscapes downstream; 1 or 2 remote Wisconsin lakes were assessed for comparative purposes. Cytochrome P450 induction, DNA damage, and thyroid function were also assessed relative to contaminant exposure. Bioaccumulative CECs, such as polybrominated diphenyl ethers (PBDEs) and perfluorinated substances, did not follow any upstream to downstream gradient; but both had significantly greater concentrations along the Maumee River than at the remote lake sites. Greater exposure to PBDEs was apparent in swallows at or near wastewater‐treatment facilities than at other sites. Total polychlorinated biphenyl and total polycyclic aromatic hydrocarbon concentrations were greater in swallows at downstream locations compared to upstream sites and were associated with higher ethoxyresorufin‐O‐dealkylase activity. Few herbicides or nonorganochlorine insecticides were detected in swallow tissues or their food, except for atrazine and its metabolite desethylatrazine. Few pharmaceuticals and personal care products were detected except for DEET and iopamidol. Both were detected in most liver samples but not in eggs, as well as detected at the remote lake sites. This is one of the most comprehensive assessments to date of exposure and effects of a wide variety of CECs in birds. Environ Toxicol Chem 2020;39:1936–1952. © 2020 SETAC. This article has been contributed to by US Government employees and their work is in the public domain in the USA. Combination of the concentration (ng/g) of multiple chemicals classes, agricultural, industrial, and those associated with wastewater‐treatment plant (WWTP) effluents, was sufficient to separate sites in multidimensional space based on adjacent land usages, Maumee River, Ohio, 2016 and 2017.
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.4792