This dataset provides supporting information for figures in the journal article entitled: Mutagenicity- and Pollutant-Emission Factors of Pellet-Fueled Gasifier Cookstoves: Comparison with Other Combustion Sources. This dataset is associated with the following publication: Champion, W., S. Warren, I. Kooter, W. Preston, T. Krantz, D. DeMarini, and J. Jetter. Mutagenicity- and Pollutant-Emission Factors of Pellet-Fueled Gasifier Cookstoves: Comparison with Other Combustion Sources. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 739(October 15 2020): 139488, (2020).
Although many volatile organic compounds (VOCs) are regulated to limit air pollution and the consequent health effects, the photooxidation products generally are not. Thus, we examined the mutagenicity in Salmonella TA100 of photochemical atmospheres generated in a steady-state atmospheric simulation chamber by irradiating mixtures of single aromatic VOCs, NOx, and ammonium sulfate seed aerosol in air. The 10 VOCs examined were benzene; toluene; ethylbenzene; o-, m-, and p-xylene; 1,2,4- and 1,3,5-trimethylbenzene; m-cresol; and naphthalene. Salmonella were exposed at the air-agar interface to the generated atmospheres for 1, 2, 4, 8, or 16 h. Dark-control exposures produced non-mutagenic atmospheres, illustrating that the gas-phase precursor VOCs were not mutagenic at the concentrations tested. Under irradiation, all but m-cresol and naphthalene produced mutagenic atmospheres, with potencies ranging from 2.0 (p-xylene) to 10.4 (ethylbenzene) revertants m3 mgC-1 h-1. The mutagenicity was due exclusively to direct-acting late-generation products of the photooxidation reactions. Gas-phase chemical analysis showed that a number of oxidized organic chemical species enhanced during the irradiated exposure experiments correlated (r ≥ 0.81) with the mutagenic potencies of the atmospheres. Molecular formulas assigned to these species indicated that they likely contained peroxy acid, aldehyde, alcohol, and other functionalities. This dataset is associated with the following publication: Riedel, T., D. DeMarini, S. Warren, E. Corse, J. Offenberg, T. Kleindienst, M. Lewandowski, and J. Zavala. Mutagenic atmospheres resulting from the photooxidation of aromatic hydrocarbon and NOx mixtures. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, USA, 178: 164-172, (2018).
Description is included with the dataset. This dataset is associated with the following publication: Mutlu, E., S. Warren , S. Ebersviller , I. Kooter, J. Schmid , J. Dye , B. Linak , I. Gilmour , J. Jetter , M. Higuchi , and D. DeMarini. Mutagenicity- and Pollutant-Emission Factors of Solid-Fuel Cookstoves: Comparison to Other Combustion Sources. ENVIRONMENTAL HEALTH PERSPECTIVES. National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC, USA, 124: 974-982, (2016).
Description is in the data set. This dataset is associated with the following publication: Mutlu, E., S. Warren , P. Matthews, C. King , L. Walsh , A. Kligerman, J. Schmid , D. Janek, I. Kooter, B. Linak , I. Gilmour , and D. DeMarini. Health Effects of Soy-Biodiesel Emissions: Mutagenicity-Emission Factors. INHALATION TOXICOLOGY. Informa Healthcare USA, New York, NY, USA, 27(11): 585-596, (2015).
The dataset is the raw and partially analyzed urinary mutagenicity data, which were generated by US EPA scientists at the US EPA/RTP. The data consist of the number of mutant colonies (revertants) per petri plate at each dose of the organic extract of the urine. These are accompanied by the positive and negative controls. In addition, the data from each experiment have been partially analyzed by performing a linear regression of the data to generate a slope value (revertants/ml-equivalents of urine) as well as an r-squared value, which is a measure of how linear the line is (i.e., how close to a straight line the data are). This dataset is associated with the following publication: Adetona, A., W.K. Martin, S. Warren, N. Hanley, O. Adetona, J.(. Zhang, C. Simpson, M. Paulsen, S. Rathbun, J. Wang, D. DeMarini, and L. Naeher. Urinary Mutagenicity as a Biomarker of Occupational Smoke Exposures of Wildland Firefighters Performing Prescribed Burns. INHALATION TOXICOLOGY. Taylor & Francis, Inc., Philadelphia, PA, USA, 31(2): 73-87, (2019).