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Person Details: Rolf Ulrich Halden Ph.D., P.E.

Superfund Research Program

Rolf Ulrich Halden Ph.D., P.E.

Arizona State University
1001 South McAllister Avenue
Room A210D
P.O. Box 875701
Tempe, Arizona 85287-5701
Phone: 480-727-0893
Fax: 480-727-0889


Research Briefs

Hazardous Waste Sites

Lawrence Livermore National Laboratory

  • Arizona State University: Novel Approaches to Studying the in situ Bioremediation of Complex Mixtures

Tower Chemical Co.

  • Arizona State University: In Situ Sampling Tool for Assessing Bioavailability and Toxicity of Sediments




  • Driver E, Gushgari AJ, Chen J, Halden RU. 2020. Alcohol, nicotine, and caffeine consumption on a public U.S. university campus determined by wastewater-based epidemiology. Sci Total Environ 727:138492. doi:10.1016/j.scitotenv.2020.138492 PMID:32334214
  • Rolsky C, Kelkar VP, Halden RU. 2020. Nationwide mass inventory and degradation assessment of plastic contact lenses in US wastewater. Environ Sci Technol 54:12102-12108. doi:10.1021/acs.est.0c03121 PMID:32869978


  • Chen J, Meng X, Bergman A, Halden RU. 2019. Nationwide reconnaissance of five parabens, triclosan, triclocarban and its transformation products in sewage sludge from China. J Hazard Mater 365:502-510. doi:10.1016/j.jhazmat.2018.11.021 PMID:30466048
  • Gushgari AJ, Venkatesan AK, Chen J, Steele JC, Halden RU. 2019. Long-term tracking of opioid consumption in two United States cities using wastewater-based epidemiology approach. Water Res 161:171-180. doi:10.1016/j.watres.2019.06.003 PMID:31195333 PMCID:PMC6613989
  • Kalinowski T, McClellan K, Bruton TA, Krajmalnik-Brown R, Driver E, Halden RU. 2019. Autonomous screening of groundwater remediation technologies in the subsurface using the In Situ Microcosm Array (ISMA). J Hazard Mater 367:668-675. doi:10.1016/j.jhazmat.2018.12.054 PMID:30654284
  • Sadaria AM, Labban CW, Steele JC, Maurer MM, Halden RU. 2019. Retrospective nationwide occurrence of fipronil and its degradates in US wastewater and sewage sludge from 2001-2016. Water Res 155:465-473. doi:10.1016/j.watres.2019.02.045 PMID:30870636
  • Venkatesan AK, Chen J, Driver E, Gushgari AJ, Halden RU. 2019. Assessing the Potential To Monitor Plant-Based Diet Trends in Communities Using a Wastewater-Based Epidemiology Approach. ACS Symp Ser 1319:187-198. doi:10.1021/bk-2019-1319.ch010
  • Wang Y, Kannan P, Halden RU, Kannan K. 2019. A nationwide survey of 31 organophosphate esters in sewage sludge from the United States. Sci Total Environ 655:446-453. doi:10.1016/j.scitotenv.2018.11.224 PMID:30472646 PMCID:PMC6318040



  • Chen J, Pycke BF, Brownawell B, Kinney CA, Furlong ET, Kolpin DW, Halden RU. 2017. Occurrence, temporal variation, and estrogenic burden of five parabens in sewage sludge collected across the United States. Sci Total Environ 593:368-374. doi:10.1016/j.scitotenv.2017.03.162 PMID:28346910
  • Driver E, Roberts J, Dollar P, Charles M, Hurst P, Halden RU. 2017. Comparative meta-analysis and experimental kinetic investigation of column and batch bottle microcosm treatability studies informing in situ groundwater remedial design. J Hazard Mater 323(PtA):377-385. doi:10.1016/j.jhazmat.2016.05.008 PMID:27207379 PMCID:PMC5097027
  • Geer LA, Pycke BF, Waxenbaum J, Sherer DM, Abulafia O, Halden RU. 2017. Association of birth outcomes with fetal exposure to parabens, triclosan and triclocarban in an immigrant population in Brooklyn, New York. J Hazard Mater 323(PtA):177-183. doi:10.1016/j.jhazmat.2016.03.028 PMID:27156397 PMCID:PMC5018415
  • Halden RU, Lindeman AE, Aiello AE, Andrews D, Arnold WA, Fair P, Fuoco RE, Geer LA, Johnson PI, Lohmann R, McNeill K, Sacks VP, Schettler T, Weber R, Zoeller RT, Blum A. 2017. The Florence Statement on triclosan and triclocarban. Environ Health Perspect 125:13. doi:10.1289/ehp1788 PMID:28632490 PMCID:PMC5644973
  • Wells EM, Herbstman JB, Lin YH, Hibbeln JR, Halden RU, Witter FR, Goldman LR. 2017. Methyl mercury, but not inorganic mercury, associated with higher blood pressure during pregnancy. Environ Res 154:247-252. doi:10.1016/j.envres.2017.01.013 PMID:28110211 PMCID:PMC532883







  • Benn T, Herckes P, Westerhoff P, Pycke B, Halden RU. 2011. Evaluation of extraction methods for the quantification of aqueous fullerenes in urine. Anal Bioanal Chem 399(4):1631-9. doi:10.1007/s00216-010-4465-2 PMID:21153587 PMCID:PMC3711233
  • Chao T, Song G, Hansmeier N, Westerhoff P, Herckes P, Halden RU. 2011. Characterization and liquid chromatography-MS/MS based quantification of hydroxylated fullerenes. Anal Chem 83:1777-1783. doi:10.1021/ac1031379 PMID:21294534 PMCID:PMC3118260
  • Ela WP, Sedlak DL, Barlaz MA, Henry HF, Muir DG, Swackhamer DL, Weber EJ, Arnold RG, Ferguson PL, Field JA, Furlong ET, Giesy JP, Halden RU, Henry T, Hites RA, Hornbuckle KC, Howard PH, Luthy RG, Meyer AK, Saez AE, vom Saal FS, Vulpe CD, Wiesner MR. 2011. Toward identifying the next generation of superfund and hazardous waste site contaminants. Environ Health Perspect 119(1):6-10. doi:10.1289/ehp.1002497 PMID:21205582 PMCID:PMC3018501
  • Higgins CP, Paesani ZJ, Chalew TE, Halden RU, Hundal L. 2011. Persistence of triclocarban and triclosan in soils after land application of biosolids and bioaccumulation in Eisenia foetida. Environ Toxicol Chem 30(3):556-563. doi:10.1002/etc.416 PMID:21128266 PMCID:PMC3034821
  • Neta G, Goldman LR, Barr DB, Apelberg BJ, Witter FR, Halden RU. 2011. Fetal exposure to chlordane and permethrin mixtures in relation to inflammatory cytokines and birth outcomes. Environ Sci Technol 45(4):1680-1687. doi:10.1021/es103417j PMID:21235202 PMCID:PMC3085719
  • Pycke B, Benn T, Westerhoff P, Halden RU. 2011. Strategies for quantifying C60 fullerenes in environmental and biological samples and implications for toxicological studies in environmental health and ecotoxicology. Trends in Analytical Chemistry 30(1):44-57. doi:10.1016/j.trac.2010.08.005 PMID:21359100 PMCID:PMC3045199
  • Wells EM, Goldman LR, Jarrett JM, Apelberg BJ, Herbstman JB, Caldwell KL, Halden RU, Witter FR. 2011. Selenium and maternal blood pressure during childbirth. J Expo Sci Environ Epidemiol 22:191-197. doi:10.1038/jes.2011.42 PMID:22108761 PMCID:PMC3661205
  • Wells EM, Navas-Acien A, Herbstman JB, Apelberg BJ, Silbergeld EK, Caldwell KL, Jones RL, Halden RU, Witter FR, Goldman LR. 2011. Low-level lead exposure and elevations in blood pressure during pregnancy. Environ Health Perspect 119:664-669. doi:10.1289/ehp.1002666 PMID:21292600 PMCID:PMC3094418
  • Ziv-El M, Delgado AG, Yao Y, Kang D, Nelson KG, Halden RU, Krajmalnik-Brown R. 2011. Development and characterization of DehaloR^2, a novel anaerobic microbial consortium performing rapid dechlorination of TCE to ethene. Appl Microbiol Biotechnol 92(5):1063-1071. doi:10.1007/s00253-011-3388-y PMID:21667274


  • Chao T, Hansmeier C, Halden RU. 2010. Towards proteome standards: the use of absolute quantitation in high-throughput biomarker discovery. J Proteomics 73(8):1641-1646. doi:10.1016/j.jprot.2010.04.004 PMID:20399287 PMCID:PMC2885480
  • Deo RP, Halden RU. 2010. Comment on "The removal of pharmaceuticals, personal care products, endocrine disruptors and illicit drugs during wastewater treatment and its impact on the quality of receiving waters. Water Res 44:2685-2687. doi:10.1016/j.watres.2009.11.040 PMID:20022620
  • Deo RP, Halden RU. 2010. Effect of sample filtration on the quality of monitoring data reported for organic compounds during wastewater treatment. J Environ Monit 12:478-483. doi:10.1039/b919076g PMID:20145890
  • Deo RP, Halden RU. 2010. In silico screening for unmonitored, potentially problematic high production volume (HPV) chemicals prone to accumulate in biosolids. J Environ Monit 12(10):1840-1845. doi:10.1039/c001559h PMID:20721409
  • Guerrero-Preston R, Goldman LR, Brebi-Mieville L, Ili-Gangas C, LeBron C, Hernández-Arroyo M, Witter FR, Apelberg BJ, Roystacher M, Jaffe A, Halden RU, Sidransky D. 2010. Global DNA hypomethylation is associated with in utero exposure to cotinine and perfluorinated alkyl compounds. Epigenetics 5(6):539-546. PMID:20523118 PMCID:PMC3322495
  • Halden RU. 2010. Plastics and health risks. Annu Rev Public Health 31:179-194. doi:10.1146/annurev.publhealth.012809.103714 PMID:20070188
  • Hartmann EM, Colquhoun DR, Halden RU. 2010. Identification of putative biomarkers for toluene-degrading Burkholderia and Pseudomonads using matrix-assisted laser desorption/Ionization time-of-flight mass spectrometry and peptide mass fingerprinting. Bioscience, Biotechnology, Biochemistry 74(7):1470-1472. doi:10.1271/bbb.100064 PMID:20622441
  • McClellan K, Halden RU. 2010. Pharmaceuticals and personal care products in archived U.S. biosolids from the 2001 EPA national sewage sludge survey. Water Res 44(22):658-668. doi:10.1016/j.watres.2009.12.032 PMID:20106500 PMCID:PMC2827628
  • Miller T, Colquhoun DR, Halden RU. 2010. Identification of wastewater bacteria involved in the degradation of triclocarban and its non-chlorinated congener. J Hazard Mater 183(1-3):766-772. doi:10.1016/j.jhazmat.2010.07.092 PMID:20727675 PMCID:PMC2939305
  • Miller T, Delcher A, Salzberg S, Saunders E, Detter JC, Halden RU. 2010. Genome sequence of the dioxin-mineralizing bacterium Sphingomonas wittichii RW1. J Bacteriol 192(22):6101-6102. doi:10.1128/JB.01030-10 PMID:20833805 PMCID:PMC2976435
  • Neta G, Goldman LR, Barr DB, Sjodin A, Apelberg BJ, Witter FR, Halden RU. 2010. Distribution and determinants of pesticide mixtures in cord serum using principal component analysis. Environ Sci Technol 44(14):5641-5648. doi:10.1021/es1009778 PMID:20550184
  • Walters E, McClellan K, Halden RU. 2010. Occurrence and loss over three years of 72 pharmaceuticals and personal care products from biosolids-soil mixtures in outdoor mesocosms. Water Res 44:6011-6020. doi:10.1016/j.watres.2010.07.051 PMID:20728197 PMCID:PMC2991390


  • Chalew TE, Halden RU. 2009. Environmental exposure of aquatic and terrestrial biota to triclosan and triclocarban. J Am Water Works Assoc 45(1):4-13. doi:10.1111/j.1752-1688.2008.00284.x PMID:20046971 PMCID:PMC2684649
  • Colquhoun DR, Goldman LR, Cole RN, Gucek M, Mansharamani M, Witter FR, Apelberg BJ, Halden RU. 2009. Global screening of human cord blood proteomes for biomarkers of toxic exposure and effect. Environ Health Perspect 117(5):832-838. doi:10.1289/ehp.11816 PMID:19478969 PMCID:PMC2685849
  • Deo RP, Halden RU. 2009. Empirical model for predicting concentrations of refractory hydrophobic organic compounds in digested sludge from municipal wastewater treatment plants. Environ Chem 6(6):544. doi:10.1071/EN09063 PMID:20161626 PMCID:PMC2813041
  • Halden RU. 2009. Book Review: Pharma-Ecology: The occurrence and fate of pharmaceuticals and personal care products in the environment by Patrick K. Jjimba. Environ Health Perspect 117(4):A172.
  • Heidler J, Halden RU. 2009. Fate of organohalogens in U.S. wastewater treatment plants and estimated chemical releases to soils nationwide from biosolids recycling. J Environ Monit 11:2207-2215. doi:10.1039/B914324F PMID:20024018 PMCID:PMC2802102
  • Higgins CP, Paesani ZJ, Chalew TE, Halden RU. 2009. Bioaccumulation of triclocarban in Lumbriculus variegatus. Environ Toxicol Chem 28(12):2580-2586. PMID:19655999
  • Von Seggern C, Halden RU. 2009. Detection of bioterrorism agents and related public health threats utilising matrix-assisted laser desorption/ionisation mass spectrometry (MALDI-MS). International Journal of Health Science 2(2):197-203.


  • Halden RU. 2008. PCPs persist for decades. Trends in Analytical Chemistry 27(6):VI.
  • Heidler J, Halden RU. 2008. Meta-analysis of mass balances examining chemical fate during wastewater treatment. Environ Sci Technol 42(17):6324-6332. doi:10.1021/es703008y PMID:18800497
  • Herbstman JB, Sjödin A, Apelberg BJ, Witter FR, Halden RU, Patterson DG, Panny SR, Needham LL, Goldman LR. 2008. Birth delivery mode modifies the associations between prenatal polychlorinated biphenyl (PCB) and polybrominated diphenyl ether (PBDE) and neonatal thyroid hormone levels. Environ Health Perspect 116(10):1376-1382. doi:10.1289/ehp.11379 PMID:18941581 PMCID:PMC2569098
  • Kim SR, Halden RU, Buckley TJ. 2008. Polycyclic aromatic hydrocarbons in human milk of nonsmoking US women. Environ Sci Technol 42(7):2663-2667. PMID:18505013
  • Miller T, Heidler J, Chillrud SN, DeLaquil A, Ritchie JC, Bopp RF, Halden RU, Mihalic JN. 2008. Fate of triclosan and evidence for reductive dechlorination of triclocarban in estuarine sediments. Environ Sci Technol 42(12):4570-6. doi:10.1021/es702882g PMID:18605588
  • Rittmann BE, Krajmalnik-Brown R, Halden RU. 2008. Pre-genomic, genomic and post-genomic study of microbial communities involved in bioenergy. Nat Rev Microbiol 6(8):604-612. doi:10.1038/nrmicro1939 PMID:18604223
  • Young TA, Heidler J, Matos-Pérez CR, Toler T, Gibson KE, Schwab KJ, Halden RU. 2008. Ab initio and in situ comparison of caffeine, triclosan, and triclocarban as indicators of sewage-derived microbes in surface waters. Environ Sci Technol 42(9):3335-3340. PMID:18522115


  • Apelberg BJ, Goldman LR, Calafat AM, Herbstman JB, Kuklenyik Z, Heidler J, Needham LL, Halden RU, Witter FR. 2007. Determinants of fetal exposure to perfluorinated compounds. Environ Sci Technol 41(11):3891-3897. doi:10.1021/es0700911
  • Apelberg BJ, Witter FR, Herbstman JB, Calafat AM, Halden RU, Needham LL, Goldman LR. 2007. Cord serum concentrations of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in relationship to weight and size at birth. Environ Health Perspect 115(11):1670-1676. doi:10.1289/ehp.10334 PMID:18008002 PMCID:PMC2072847
  • Heidler J, Halden RU. 2007. Mass balance assessment of triclosan removal during conventional sewage treatment. Chemosphere 66(2):362-369. PMID:16766013
  • Herbstman JB, Sjödin A, Apelberg BJ, Witter FR, Patterson DG, Halden RU, Jones RS, Park A, Zhang Y, Heidler J, Needham LL, Goldman LR. 2007. Determinants of prenatal exposure to polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in an urban population. Environ Health Perspect 115(12):1794-1800. PMID:18087602
  • Kim SR, Halden RU, Buckley TJ. 2007. Volatile organic compounds in human milk: Methods and measurements. Environ Sci Technol 41(5):1662-1667. doi:10.1021/es062362y PMID:17396657
  • Miller T, Franklin MP, Halden RU. 2007. Bacterial community analysis of shallow groundwater undergoing sequential anaerobic and aerobic chloroethene biotransformation. FEMS Microbiol Ecol 60(2):299-311. PMID:17386036
  • Sapkota A, Heidler J, Halden RU. 2007. Detection of triclocarban and two co-contaminating chlorocarbanilides in U.S. aquatic environments using isotope dilution liquid chromatography tandem mass spectrometry. Environ Res 103(1):21-29. PMID:16678153


  • Colquhoun DR, Schwab KJ, Cole RN, Halden RU. 2006. Detection of norovirus capsid protein in authentic standards and in stool extracts by matrix-assisted laser desorption ionization and nanospray mass spectrometry. Appl Environ Microbiol 72(4):2749-2755.
  • Halden RU. 2006. Comment on "biological removal of polychlorinated dibenzo-p-dioxins from incinerator fly ash by Sphingomonas wittichii RW1" by I-H Nam, Y-M Kim, B-H Kim, K Murugesan, and Y-S Chang. Water Res 40(9):1918-1920. doi:10.1016/j.watres.2006.02.034 PMID:16620903
  • Halden RU. 2006. Commentary on "Accumulation of contaminants in fish from wastewater treatment wetlands.". Environ Sci Technol 40(11):3437. PMID:16749718
  • Heidler J, Sapkota A, Halden RU. 2006. Partitioning, persistence, and accumulation in digested sludge of the topical antiseptic triclocarban during wastewater treatment. Environ Sci Technol 40(11):3634-3639. PMID:16786704 PMCID:PMC2768036


  • Halden RU, Paull DH. 2005. Co-occurrence of triclocarban and triclosan in U.S. water resources. Environ Sci Technol 39:1420-1426. PMID:15819193
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