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MCHM Degradation Data Release

Metadata Updated: July 6, 2024

This USGS data release includes all the data presented in peer-reviewed publication entitled "Degradation of MCHM (4-methylcyclohexanemethanol) in Sediments from Elk River, West Virginia". We conducted experiments on crude MCHM to examine photooxidation or biodegradation. We also assessed the potential of sediments to serve as a long-term source of MCHM and well as the potential for native microbial communities to catalyze the anaerobic breakdown of MCHM. We developed a quantitative method to measure the 2 isomers (cis- and trans-) of 4-MCHM, using solid phase micro-extraction (SPME), which had a minimum detection limit of 5 µg/L. The data release shows that the abiotic degradation experiments showed no evidence of photooxidation or abiotic degradation over 35-days for either MCHM isomer. Experiments with sterilized Elk River sediments showed sorption within 2 weeks, with 31% of trans-4-MCHM and 17.5% of cis-4-MCHM lost from solution. Impacted sediments from the spill site released substantial concentrations of trans-4-MCHM (up to 40 µg/L) and minor amounts of cis-4-MCHM (at the detection limit ~ 4 µg/L) into the overlying water solution after sterilization, indicating that sediments retained MCHM 10 months after the spill. In anoxic microcosms, 300 µg/L cis- and 150 µg/L trans-4-MCHM degraded to non-detectable levels in 8-13 days in both impacted and background sediments coupled to iron and sulfate reduction. MCHM degraded to non-detectable levels within 4 days under aerobic conditions. Microbial communities at impacted sites differed in composition compared to background and were less affected by MCHM amendments. Our results to date indicate that MCHM is readily biodegradable under environmentally relevant conditions.

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 July 6, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date July 6, 2024
Publisher U.S. Geological Survey
Identifier USGS:59527e48e4b062508e3c766c
Data Last Modified 20200831
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 07768511-c61b-476b-8ac9-7f804e4e905d
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -82.109069820929,37.909533615488,-81.043395992847,38.724090457657
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 187a589bf81d1ab9958356c097984f110888586c30e7c098a4dbd219775918d4
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -82.109069820929, 37.909533615488, -82.109069820929, 38.724090457657, -81.043395992847, 38.724090457657, -81.043395992847, 37.909533615488, -82.109069820929, 37.909533615488}

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