Biologist
Email:
sschultz@usgs.gov
Office Phone:
301-497-5927
ORCID:
0000-0003-3394-2857
Location
12100 BEECH FOREST ROAD
LAUREL
, MD
20708
US
|
A site in north eastern MI, Oscoda Township, has some of the highest recorded exposure in birds to perfluorinated substances (PFASs) in the U.S. Some egg and plasma concentrations at that location exceeded the lowest reproductive effect threshold established for two avian laboratory species. The objectives of this study were to determine whether there were reproductive effects or physiological responses in a model bird species, the tree swallow (Tachycineta bicolor), associated with this extremely high exposure to PFASs. The lack of exposure above background to other contaminants at this site allowed for an assessment of PFAS effects without the complication that responses may be caused by other contaminants. A...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Clarks Marsh, Oscoda, Michigan, USA,
Oscoda, Michigan, USA,
PFOS,
Perfluorinated chemicals,
USGS Science Data Catalog (SDC), All tags...
Wurtsmith Airforce Base, Oscoda, Michigan, USA,
biota,
physiological responses,
reproductive effects,
tree swallows, Fewer tags
|
Observations of test subjects and hatching data - Body weight, organ/tissue weights Biomarker data (oxidative stress indicators, oxidative DNA damage, thyroid hormones, histological findings) in various tissues Chemical residues in tissues
Categories: Data;
Tags: American kestrel (Falco sparverius),
Brominated flame retardants,
EHTBB,
Environmental Health,
Firemaster 550, All tags...
Maryland,
TBPH,
USGS Science Data Catalog (SDC),
avian toxicity,
developmental toxicity,
emerging contaminants, Fewer tags
|
- Observations of test subjects, - Body weight, organ/tissue weights - Biomarker data (oxidative DNA damage, thyroid hormones, corticosterone, gene expression) in various tissues - Residues as percent of administered dose - Tissues to plasma rations - Metabolites and ratios - Elimination half-lives
Tags: Ecotoxicology,
Ecotoxicology,
Environmental Health,
Maryland,
USGS Science Data Catalog (SDC), All tags...
absorption,
birds,
distribution,
excretion,
hazard,
imidacloprid,
metabolism,
neonicotinoid,
risk,
toxicity, Fewer tags
|
|