Toxicology Reports 2 (2015) 1200–1208
Contents lists available at ScienceDirect
Toxicology Reports journal homepage: www.elsevier.com/locate/toxrep
Characterization of naturally occurring airborne diacetyl concentrations associated with the preparation and consumption of unflavored coffee Jennifer S. Pierce a,∗ , Anders Abelmann a , Jason T. Lotter a , Chris Comerford a , Kara Keeton a , Brent L. Finley b a b
Cardno ChemRisk, 30 N. LaSalle St., Ste. 3910, Chicago, IL 60602, United States Cardno ChemRisk, 231 Front St., Ste. 201, Brooklyn, NY 11201, United States
a r t i c l e
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Article history: Received 7 August 2015 Received in revised form 11 August 2015 Accepted 11 August 2015 Available online 18 August 2015 Keywords: Diacetyl Bronchiolitis obliterans Flavorings induced lung disease Microwave popcorn Coffee
a b s t r a c t Diacetyl, a suspected cause of respiratory disorders in some food and flavorings manufacturing workers, is also a natural component of roasted coffee. We characterized diacetyl exposures that would plausibly occur in a small coffee shop during the preparation and consumption of unflavored coffee. Personal (long- and short-term) and area (long-term) samples were collected while a barista ground whole coffee beans, and brewed and poured coffee into cups. Simultaneously, long-term personal samples were collected as two participants, the customers, drank one cup of coffee each per h. Air sampling and analyses were conducted in accordance with OSHA Method 1012. Diacetyl was detected in all long-term samples. The long-term concentrations for the barista and area samples were similar, and ranged from 0.013–0.016 ppm; long-term concentrations for the customers were slightly lower and ranged from 0.010–0.014 ppm. Short-term concentrations ranged from below the limit of detection (
Contents lists available at ScienceDirect
Toxicology Reports journal homepage: www.elsevier.com/locate/toxrep
Characterization of naturally occurring airborne diacetyl concentrations associated with the preparation and consumption of unflavored coffee Jennifer S. Pierce a,∗ , Anders Abelmann a , Jason T. Lotter a , Chris Comerford a , Kara Keeton a , Brent L. Finley b a b
Cardno ChemRisk, 30 N. LaSalle St., Ste. 3910, Chicago, IL 60602, United States Cardno ChemRisk, 231 Front St., Ste. 201, Brooklyn, NY 11201, United States
a r t i c l e
i n f o
Article history: Received 7 August 2015 Received in revised form 11 August 2015 Accepted 11 August 2015 Available online 18 August 2015 Keywords: Diacetyl Bronchiolitis obliterans Flavorings induced lung disease Microwave popcorn Coffee
a b s t r a c t Diacetyl, a suspected cause of respiratory disorders in some food and flavorings manufacturing workers, is also a natural component of roasted coffee. We characterized diacetyl exposures that would plausibly occur in a small coffee shop during the preparation and consumption of unflavored coffee. Personal (long- and short-term) and area (long-term) samples were collected while a barista ground whole coffee beans, and brewed and poured coffee into cups. Simultaneously, long-term personal samples were collected as two participants, the customers, drank one cup of coffee each per h. Air sampling and analyses were conducted in accordance with OSHA Method 1012. Diacetyl was detected in all long-term samples. The long-term concentrations for the barista and area samples were similar, and ranged from 0.013–0.016 ppm; long-term concentrations for the customers were slightly lower and ranged from 0.010–0.014 ppm. Short-term concentrations ranged from below the limit of detection (
