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Consumer panel estimates of odor thresholds for crude 4-methylcyclohexanemethanol

On Jan. 9, 2014, a spill of “crude” 4-methylcyclohexanemethanol (MCHM) into the Elk River in West Virginia contaminated the water supply for 300,000 people. The crude MCHM caused an intense licorice odor in the drinking water that supplied the area in and around Charleston, W.Va. A sensitive analyti...

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Published in:	Journal - American Water Works Association 2014-10, Vol.106 (10), p.E445-E458
Main Authors:	McGuire, Michael J., Suffet, I.H. (Mel), Rosen, Jeffrey
Format:	Article
Language:	English
Subjects:	chemical spill consumer panel Contamination Cough Drinking water Geometric mean Glycyrrhiza glabra Isomers Licorice Mathematical tables Odor odor objection odor recognition odor threshold Odors Potable water Rivers Spills Tap water taste and odor Threshing Water consumption Water Contamination Water pollution Water supply West Virginia
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description	On Jan. 9, 2014, a spill of “crude” 4-methylcyclohexanemethanol (MCHM) into the Elk River in West Virginia contaminated the water supply for 300,000 people. The crude MCHM caused an intense licorice odor in the drinking water that supplied the area in and around Charleston, W.Va. A sensitive analytical method developed by a commercial laboratory was used to verify the concentrations of crude MCHM presented to a consumer panel selected using specific criteria. The method used for the panel studies was ASTM E679-04, which has been used to determine other odor thresholds in water. The odor threshold and odor recognition concentrations for crude MCHM in water were estimated by the consumer panel to be 0.55 and 7.4 µg/L, respectively. Two estimates of the odor objection concentration were 7.7 and 8.8 µg/L.
doi_str_mv	10.5942/jawwa.2014.106.0129
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(Mel)</creatorcontrib><creatorcontrib>Rosen, Jeffrey</creatorcontrib><title>Consumer panel estimates of odor thresholds for crude 4-methylcyclohexanemethanol</title><title>Journal - American Water Works Association</title><description>On Jan. 9, 2014, a spill of “crude” 4-methylcyclohexanemethanol (MCHM) into the Elk River in West Virginia contaminated the water supply for 300,000 people. The crude MCHM caused an intense licorice odor in the drinking water that supplied the area in and around Charleston, W.Va. A sensitive analytical method developed by a commercial laboratory was used to verify the concentrations of crude MCHM presented to a consumer panel selected using specific criteria. The method used for the panel studies was ASTM E679-04, which has been used to determine other odor thresholds in water. The odor threshold and odor recognition concentrations for crude MCHM in water were estimated by the consumer panel to be 0.55 and 7.4 µg/L, respectively. Two estimates of the odor objection concentration were 7.7 and 8.8 µg/L.</description><subject>chemical spill</subject><subject>consumer panel</subject><subject>Contamination</subject><subject>Cough</subject><subject>Drinking water</subject><subject>Geometric mean</subject><subject>Glycyrrhiza glabra</subject><subject>Isomers</subject><subject>Licorice</subject><subject>Mathematical tables</subject><subject>Odor</subject><subject>odor objection</subject><subject>odor recognition</subject><subject>odor threshold</subject><subject>Odors</subject><subject>Potable water</subject><subject>Rivers</subject><subject>Spills</subject><subject>Tap water</subject><subject>taste and odor</subject><subject>Threshing</subject><subject>Water consumption</subject><subject>Water Contamination</subject><subject>Water pollution</subject><subject>Water supply</subject><subject>West Virginia</subject><issn>0003-150X</issn><issn>1551-8833</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkMtKxDAUhoMoOF6ewE3BjZvWk-s07obBGwgiKLoLMU2ZKelkTFrqvL3pzODClavDOXzf4edH6AJDwSUj140eBl0QwKzAIArARB6gCeYc52VJ6SGaAADNMYePY3QSY5NWzDGboJe5X8W-tSFb65V1mY3dstWdjZmvM1_5kHWLYOPCuypmdVpN6Cubsby13WLjzMY4v7DfyR0PeuXdGTqqtYv2fD9P0dvd7ev8IX96vn-cz55ywwBkLjWQEghL8aa1MZRVAFOusQUhMAEmp1hX_FNSMMRKXpa6lpWsSJoCTE3pKbra_V0H_9Wn3KpdRmOdS1l8HxUWhAigpRjRyz9o4_uwSukShakklAiRKLqjTPAxBlurdUhdhI3CoMaa1bZmNdacTkKNNSfrZmcNS2c3_1HU7P19Bnu52MlN7Hz4lRvd2kF3gw86xq2X3t0yxukPNyuTaA</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>McGuire, Michael J.</creator><creator>Suffet, I.H. 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source	JSTOR Archival Journals and Primary Sources Collection; Wiley-Blackwell Read & Publish Collection
subjects	chemical spill consumer panel Contamination Cough Drinking water Geometric mean Glycyrrhiza glabra Isomers Licorice Mathematical tables Odor odor objection odor recognition odor threshold Odors Potable water Rivers Spills Tap water taste and odor Threshing Water consumption Water Contamination Water pollution Water supply West Virginia
title	Consumer panel estimates of odor thresholds for crude 4-methylcyclohexanemethanol
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