Person Details: Jon Chorover Ph.D.

Superfund Research Program

Jon Chorover Ph.D.

University of Arizona
Department of Environmental Science
P.O. Box 210038
Tucson, Arizona 85721-0038
Phone: 520-626-5635
Fax: 520-621-1647
Email: chorover@cals.arizona.edu

Projects

• University of Arizona: Environmental Controls on Bioavailability of Arsenic and Toxic Metals (2020-2025)
• University of Arizona: Nano-scale Mechanisms of Metal(loid) Rhizostabilization in Desert Mine Tailings (2009-2011)
• University of Arizona: Research Support Core (2000-2015)
• University of Arizona: Revegetation of Mining Wastes in Arid and Semiarid Environments: Plant-Microbe-Metal Interactions and Fertility Island Effects (2005-2020)
• University of Arizona: Role of Mineral Genesis, Dissolution, and Sorption on Arsenic Fate in Contained Waste Sites (2010-2015)
• University of Arizona: Sequestration Processes for Attenuation and Treatment of Arsenic and other Toxic Elements in Mine Waters (2000-2020)

Hazardous Waste Sites

Iron King Mine and Humboldt Smelter

• University of Arizona: Nano-scale Mechanisms of Metal(loid) Rhizostabilization in Desert Mine Tailings
• University of Arizona: Research Support Core

Klondyke Tailings, WQARF site

• University of Arizona: Nano-scale Mechanisms of Metal(loid) Rhizostabilization in Desert Mine Tailings

Tucson International Airport Area (TIAA) Superfund Site

• University of Arizona: Research Support Core

Publications

2020

• Chorover J, Hammond C, Root RA, Maier RM. 2020. Arsenic and iron speciation and mobilization during phytostabilization of pyritic mine tailings. Geochim Cosmochim Acta 286:306-323. doi:10.1016/j.gca.2020.07.001

2019

• Dinali G, Root RA, Amistadi M, Chorover J, Lopes G, Guilherme L. 2019. Rare earth elements (REY) sorption on soils of contrasting mineralogy and texture. Environ Int 128:279-291. doi:10.1016/j.envint.2019.04.022
• Honeker LK, Gullo CF, Neilson JW, Chorover J, Maier RM. 2019. Effect of re-acidification on buffalo grass rhizosphere and bulk microbial communities during phytostabilization of metalliferous mine tailings. Front Microbiol 10:doi:10.3389/fmicb.2019.01209 PMID:31214146 PMCID:PMC6554433
• Hottenstein JD, Neilson JW, Gil-Loaiza J, Root RA, White SA, Chorover J, Maier RM. 2019. Soil microbiome dynamics during pyritic mine tailing phytostabilization: understanding microbial bioindicators of soil acidification. Front Microbiol 10:doi:10.3389/fmicb.2019.01211 PMID:31275251 PMCID:PMC6593306

2018

• Hammond C, Root RA, Maier RM, Chorover J. 2018. Mechanisms of arsenic sequestration by Prosopis juliflora during the phytostabilization of metalliferous mine tailings. Environ Sci Technol 52(3):1156-1164. doi:10.1021/acs.est.7b04363 PMID:29241010 PMCID:PMC5930015
• Madeira CL, Field JA, Simonich MT, Tanguay RL, Chorover J, Sierra-Alvarez R. 2018. Ecotoxicity of the insensitive munitions compound 3-nitro-1,2,4-triazol-5-one (NTO) and its reduced metabolite 3-amino-1,2,4-triazol-5-one (ATO). J Hazard Mater 343:340-346. doi:10.1016/j.jhazmat.2017.09.052 PMID:28992572
• Thomas AN, Root RA, Lantz RC, Saez AE, Chorover J. 2018. Oxidative weathering decreases bioaccessibility of toxic metal(loid)s in PM10 emissions from sulfide mine tailings. Geohealth 2(4):118-138. doi:10.1002/2017GH000118 PMID:30338309 PMCID:PMC6191178
• Valentin-Vargas A, Neilson JW, Root RA, Chorover J, Maier RM. 2018. Treatment impacts on temporal microbial community dynamics during phytostabilization of acid-generating mine tailings in semiarid regions. Sci Total Environ 618:357-368. doi:10.1016/j.scitotenv.2017.11.010 PMID:29132003 PMCID:PMC5773348

2017

• Honeker LK, Neilson JW, Root RA, Gil-Loaiza J, Chorover J, Maier RM. 2017. Bacterial rhizoplane colonization patterns of Buchloe dactyloides growing in metalliferous mine tailings reflect plant status and biogeochemical conditions. Microb Ecol 74:853867. doi:10.1007/s00248-017-0998-7 PMID:28577167 PMCID:PMC5654687
• Madeira CL, Speet SA, Alvarez-Nieto C, Abrell L, Chorover J, Sierra-Alvarez R, Field JA. 2017. Sequential anaerobic-aerobic biodegradation of emerging insensitive munitions compound 3-nitro-1,2,4-triazol-5-one (NTO). Chemosphere 167:478-484. doi:10.1016/j.chemosphere.2016.10.032 PMID:27750172
• Olivares CI, Madeira CL, Sierra-Alvarez R, Kadoya W, Abrell L, Chorover J, Field JA. 2017. Environmental fate of C-14 radiolabeled 2,4-dinitroanisole in soil. microcosms. Environ Sci Technol 51:13327-13334. doi:10.1021/acs.est.7b03699 PMID:29072907

2016

• Gil-Loaiza J, White SA, Root RA, Ramirez-Solis A, Hammond C, Chorover J, Maier RM. 2016. Phytostabilization of mine tailings using compost-assisted direct planting: translating greenhouse results to the field. Sci Total Environ 565:451-461. doi:10.1016/j.scitotenv.2016.04.168 PMID:27183459 PMCID:PMC4921306
• Honeker LK, Root RA, Chorover J, Maier RM. 2016. Resolving colocalization of bacteria and metal(loid)s on plant root surfaces by combining fluorescence in situ hybridization (FISH) with multiple-energy micro-focused X-ray fluorescence (ME μXRF). J Microbiol Methods 131:23-33. doi:10.1016/j.mimet.2016.09.018 PMID:27693754 PMCID:PMC5127750
• Olivares CI, Abrell L, Khatiwada R, Chorover J, Sierra-Alvarez R, Field JA. 2016. (Bio)transformation of 2,4-dinitroanisole (DNAN) in soils. J Hazard Mater 304:214-221. doi:10.1016/j.jhazmat.2015.10.059 PMID:26551225 PMCID:PMC4695256
• Olivares CI, Sierra-Alvarez R, Abrell L, Chorover J, Simonich MT, Tanguay RL, Field JA. 2016. Zebrafish embryo toxicity of anaerobic biotransformation products from the insensitive munitions compound 2,4-dinitroanisole. Environ Toxicol Chem 35(11):2774-2781. doi:10.1002/etc.3446 PMID:27058972 PMCID:PMC5052101
• Olivares CI, Sierra-Alvarez R, Alvarez-Nieto C, Abrell L, Chorover J, Field JA. 2016. Microbial toxicity and characterization of DNAN (bio)transformation product mixtures. Chemosphere 154:499-506. doi:10.1016/j.chemosphere.2016.04.007 PMID:27085064
• Rodriguez-Freire L, Moore SE, Sierra-Alvarez R, Root RA, Chorover J, Field JA. 2016. Arsenic remediation by formation of arsenic sulfide minerals in a continuous anaerobic bioreactor. Biotechnol Bioeng 113(3):522-530. doi:10.1002/bit.25825 PMID:26333155 PMCID:PMC4729605

2015

• Nelson KN, Neilson JW, Root RA, Chorover J, Maier RM. 2015. Abundance and activity of 16S rRNA, AmoA and NifH bacterial genes during assisted phytostabilization of mine tailings. Int J Phytoremediation 17(1-6):493-502. doi:10.1080/15226514.2014.935284 PMID:25495940 PMCID:PMC4269300
• Root RA, Hayes SM, Hammond C, Maier RM, Chorover J. 2015. Toxic metal(loid) speciation during weathering of iron sulfide mine tailings under semi-arid climate. Appl Geochem 62:131-149. doi:10.1016/j.apgeochem.2015.01.005 PMID:26549929 PMCID:PMC4632981

2014

• Hayes SM, Perdrial N, Chorover J, Root RA. 2014. Surficial weathering of iron sulfide mine tailings under semi-arid climate. Geochim Cosmochim Acta 141:240-257. doi:10.1016/j.gca.2014.05.030 PMID:25197102 PMCID:PMC4151187
• Menka N, Root RA, Chorover J. 2014. Bioaccessibility, release kinetics, and molecular speciation of arsenic and lead in geo-dusts from the Iron King Mine Federal Superfund site in Humboldt, Arizona. Rev Environ Health 29(1-2):23-27. doi:10.1515/reveh-2014-0009 PMID:24552959
• Rodríguez-Freire LR, Sierra-Alvarez R, Root RA, Chorover J, Field JA. 2014. Biomineralization of arsenate to arsenic sulfides is greatly enhanced at mildly acidic conditions. Water Res 66:242-253. doi:10.1016/j.watres.2014.08.016 PMID:25222328 PMCID:PMC4252821
• Valentin-Vargas A, Root RA, Neilson JW, Chorover J, Maier RM. 2014. Environmental factors influencing the structural dynamics of soil microbial communities during assisted phytostabilization of acid-generating mine tailings: a mesocosm experiment. Sci Total Environ 500-501:314-324. doi:10.1016/j.scitotenv.2014.08.107 PMID:25237788 PMCID:PMC4253589

2013

• Chorover J, Maier RM, Valentin-Vargas A. 2013. A new standard-based polynomial interpolation (SBPIn) method to address gel-to-gel variability for the comparison of multiple denaturing gradient gel electrophoresis profile matrices. J Microbiol Methods 92:173-177. doi:10.1016/j.mimet.2012.12.001 PMID:23234884 PMCID:PMC3570647
• Gao X, Root RA, Farrell J, Ela WP, Chorover J. 2013. Effect of silicic acid on arsenate and arsenite retention mechanisms on 6-L ferrihydrite: A spectroscopic and batch adsorption approach. Appl Geochem 38:110-120. doi:10.1016/j.apgeochem.2013.09.005 PMID:25382933 PMCID:PMC4223807
• Root RA, Fathordoobadi S, Alday F, Ela WP, Chorover J. 2013. Microscale speciation of arsenic and iron in ferric-based sorbents subjected to simulated landfill conditions. Environ Sci Technol 47(22):12992-13000. doi:10.1021/es402083h PMID:24102155 PMCID:PMC3882129

2012

• Hayes SM, Webb SM, Bargar JR, O'Day PA, Maier RM, Chorover J. 2012. Geochemical weathering increases lead bioaccessibility in semi-arid mine tailings. Environ Sci Technol 46(11):5834-5841. doi:10.1021/es300603s PMID:22553941 PMCID:PMC3376710
• Solis-Dominguez FA, White SA, Hutter TB, Amistadi M, Root RA, Chorover J, Maier RM. 2012. Response of key soil parameters during compost-assisted phytostabilization in extremely acidic tailings: Effect of plant species. Environ Sci Technol 46(2):1019-1027. doi:10.1021/es202846n PMID:22191663 PMCID:PMC3263829

2011

• Hayes SM, O'Day PA, Webb SM, Maier RM, Chorover J. 2011. Changes in zinc speciation with mine tailings acidification in a semiarid weathering environment. Environ Sci Technol 45:7166-7172. doi:10.1021/es201006b PMID:21761897 PMCID:PMC3175378
• Solis-Dominguez FA, Valentin-Vargas A, Chorover J, Maier RM. 2011. Effect of arbuscular mycorrhizal fungi on plant biomass and the rhizosphere microbial community structure of mesquite grown in acidic lead/zinc mine tailings. Sci Total Environ 409:1009-1016. doi:10.1016/j.scitotenv.2010.11.020 PMID:21211826 PMCID:PMC3030643

2009

• Hayes SM, White SA, Thompson TL, Maier RM, Chorover J. 2009. Changes in lead and zinc lability during weathering-induced acidification of desert mine tailings: Coupling chemical and micro-scale analyses. Appl Geochem 24(12):2234-2245. doi:10.1016/j.apgeochem.2009.09.010 PMID:20161492 PMCID:PMC2796778

2008

• Grandlic CJ, Mendez MO, Chorover J, Machado B, Maier RM. 2008. Identification of plant growth-promoting bacteria suitable for Phytostabilization of mine tailings. Environ Sci Technol 42(6):2079-2084. doi:10.1021/es072013j
• Grandlic CJ, Mendez MO, Maier RM, Chorover J, Machado B. 2008. Plant growth-promoting bacteria for phytostabilization of mine tailings. Environ Sci Technol 42(6):2079-2084. PMID:18409640