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Chemicals of Emerging Concern in Water and Bottom Sediment in the Great Lakes Basin, 2014 - Analytical Methods, Collection Methods, Quality-Assurance Analyses, and Data

Metadata Updated: October 29, 2023

The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and St. Cloud State University (SCSU), identified the occurrence of chemicals of emerging concern (CECs) in water and bottom sediment collected in 2014 at 65 sites throughout the Great Lakes Basin. The 2014 effort is part of a long-term study that began in 2010. Included in this directory are collection methods, references to or descriptions of analytical methods used, data for samples collected in 2014, and associated quality-assurance data. Samples were collected during the periods of April to May and August to September by USGS, USFWS, and (or) SCSU personnel. Study sites include tributaries to the Great Lakes located near Green Bay, Wisconsin; Chicago, Illinois; Detroit, Michigan; Grand Rapids, Michigan; Cleveland, Ohio; and Wanakena, New York. During this study, 204 environmental samples and 6 field replicate sample pairs of surface water, 6 field blank-water samples, and 4 laboratory-matrix spike water samples were collected or prepared. Additionally, 21 environmental samples, 3 field replicate sample pairs, and 2 laboratory-matrix spike samples of bottom sediments were collected or prepared. At 22 select water-quality sites, polar organic chemical integrative samplers (POCIS) were deployed in surface waters and analyzed for a similar suite of CECs as were measured in water and bottom-sediment samples. A total of 22 environmental samples, 4 field-blank samples (exposed to ambient air), and 4 field replicate sample pairs were collected or prepared. Water and bottom-sediment samples were prepared and analyzed at the USGS National Water Quality Laboratory (NWQL) in Denver, Colorado. All POCIS samples were extracted at the Environmental Sampling Technologies Laboratory in St. Joseph, Missouri. Extracts were sent to NWQL where final preparation steps and analyses were completed.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:547c7a02e4b0bdc517925ba0
Data Last Modified 20200827
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 5bed8c81-d227-4c67-bbfd-714e47c59b27
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -93.2231979370117,40.4067077636719,-73.6395492553711,48.3042488098145
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash ac9cc85ec8612e1ef201aa6c4a727b1b553e89b8098d972d62796919046ab082
Source Schema Version 1.1
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