Paul Westerhoff

Vice Dean & Regents' Professor (ACD)

  • 17394 Citations
  • 64 h-Index
1990 …2022

Research Output 1990 2018

2018

Coagulation behaviors of new covalently bound hybrid coagulants (CBHyC) in surface water treatment

Chen, S., Yuan, Z., Hanigan, D., Westerhoff, P., Zhao, H. & Ni, J. Feb 9 2018 In : Separation and Purification Technology. 192, p. 322-328 7 p.

Research output: Contribution to journalArticle

Coagulants
Coagulation
Water treatment
Surface waters
Turbidity
2 Citations

Compact light-emitting diode optical fiber immobilized TiO2 reactor for photocatalytic water treatment

O'Neal Tugaoen, H., Garcia-Segura, S., Hristovski, K. & Westerhoff, P. Feb 1 2018 In : Science of the Total Environment. 613-614, p. 1331-1338 8 p.

Research output: Contribution to journalArticle

Water treatment
Light emitting diodes
Optical fibers
water treatment
Photocatalysts

Developing and interpreting aqueous functional assays for comparative property-activity relationships of different nanoparticles

Kidd, J. M., Hanigan, D., Truong, L., Hristovski, K., Tanguay, R. & Westerhoff, P. Jul 1 2018 In : Science of the Total Environment. 628-629, p. 1609-1616 8 p.

Research output: Contribution to journalArticle

Nanostructured materials
Assays
dissolution
radar
assay
Wellheads
Health risks
wellhead
Water treatment
Potable water

Impacts of moisture content during ozonation of soils containing residual petroleum

Chen, T., Yavuz, B. M., Delgado, A. G., Montoya, G., Winkle, D. V., Zuo, Y., Kamath, R., Westerhoff, P., Krajmalnik-Brown, R. & Rittmann, B. E. Feb 15 2018 In : Journal of Hazardous Materials. 344, p. 1101-1108 8 p.

Research output: Contribution to journalArticle

Ozonization
residual soil
Petroleum
petroleum hydrocarbon
Hydrocarbons
Nitrites
Nitrates
Nitrogen
nitrite
Gases

Optical fiber-mediated photosynthesis for enhanced subsurface oxygen delivery

Lanzarini-Lopes, M., Delgado, A. G., Guo, Y., Dahlen, P. & Westerhoff, P. Mar 1 2018 In : Chemosphere. 195, p. 742-748 7 p.

Research output: Contribution to journalArticle

Photosynthesis
Dissolved oxygen
Optical fibers
photosynthesis
dissolved oxygen
1 Citations

Photon flux influence on photoelectrochemical water treatment

Garcia-Segura, S., Tugaoen, H. O. N., Hristovski, K. & Westerhoff, P. Feb 1 2018 In : Electrochemistry Communications. 87, p. 63-65 3 p.

Research output: Contribution to journalArticle

Water pollution
Organic pollutants
Electrochemistry
Photocurrents
Water treatment

Quantification of carbon nanotubes in polymer composites

Nosaka, T., Lankone, R. S., Bi, Y., Fairbrother, D. H., Westerhoff, P. & Herckes, P. Mar 7 2018 In : Analytical Methods. 10, 9, p. 1032-1037 6 p.

Research output: Contribution to journalArticle

Reheat cycle
Inductively coupled plasma mass spectrometry
Mass spectrometers
Single-walled carbon nanotubes (SWCN)
Chlorine compounds

Size exclusion chromatography with online ICP-MS enables molecular weight fractionation of dissolved phosphorus species in water samples

Venkatesan, A. K., Gan, W., Ashani, H., Herckes, P. & Westerhoff, P. Apr 15 2018 In : Water Research. 133, p. 264-271 8 p.

Research output: Contribution to journalArticle

Size exclusion chromatography
Fractionation
chromatography
Phosphorus
fractionation
2017
2 Citations

Advanced Materials, Technologies, and Complex Systems Analyses: Emerging Opportunities to Enhance Urban Water Security

Zodrow, K. R., Li, Q., Buono, R. M., Chen, W., Daigger, G., Dueñas-Osorio, L., Elimelech, M., Huang, X., Jiang, G., Kim, J. H., Logan, B. E., Sedlak, D. L., Westerhoff, P. & Alvarez, P. J. J. Sep 19 2017 In : Environmental Science and Technology. 51, 18, p. 10274-10281 8 p.

Research output: Contribution to journalArticle

Large scale systems
Water
water stress
water pollution
footprint
6 Citations

Challenges in photocatalytic reduction of nitrate as a water treatment technology

Tugaoen, H. O. N., Garcia-Segura, S., Hristovski, K. & Westerhoff, P. Dec 1 2017 In : Science of the Total Environment. 599-600, p. 1524-1551 28 p.

Research output: Contribution to journalArticle

Water treatment
Nitrates
water treatment
nitrate
Photocatalysis

Coupling Light Emitting Diodes with Photocatalyst-Coated Optical Fibers Improves Quantum Yield of Pollutant Oxidation

Ling, L., Tugaoen, H., Brame, J., Sinha, S., Li, C., Schoepf, J., Hristovski, K., Kim, J. H., Shang, C. & Westerhoff, P. Nov 21 2017 In : Environmental Science and Technology. 51, 22, p. 13319-13326 8 p.

Research output: Contribution to journalArticle

Quantum yield
Photocatalysts
Light emitting diodes
Optical fibers
oxidation
1 Citations

Detection and dissolution of needle-like hydroxyapatite nanomaterials in infant formula

Schoepf, J. J., Bi, Y., Kidd, J., Herckes, P., Hristovski, K. & Westerhoff, P. Jan 1 2017 In : NanoImpact. 5, p. 22-28 7 p.

Research output: Contribution to journalArticle

Infant Formula
Nanostructures
Durapatite
Hydroxyapatite
Nanostructured materials

Detection and Sizing of Ti-Containing Particles in Recreational Waters Using Single Particle ICP-MS

Venkatesan, A. K., Reed, R. B., Lee, S., Bi, X., Hanigan, D., Yang, Y., Ranville, J. F., Herckes, P. & Westerhoff, P. Nov 21 2017 (Accepted/In press) In : Bulletin of Environmental Contamination and Toxicology. p. 1-7 7 p.

Research output: Contribution to journalArticle

Inductively coupled plasma
Rivers
Water
Salts
Swimming Pools
4 Citations

Electrical energy per order and current efficiency for electrochemical oxidation of p-chlorobenzoic acid with boron-doped diamond anode

Lanzarini-Lopes, M., Garcia-Segura, S., Hristovski, K. & Westerhoff, P. Dec 1 2017 In : Chemosphere. 188, p. 304-311 8 p.

Research output: Contribution to journalArticle

Chlorobenzoates
Diamond
Boron
Electrochemical oxidation
boron
2 Citations

Interpreting Interactions between Ozone and Residual Petroleum Hydrocarbons in Soil

Chen, T., Delgado, A. G., Yavuz, B. M., Maldonado, J., Zuo, Y., Kamath, R., Westerhoff, P., Krajmalnik-Brown, R. & Rittmann, B. E. Jan 3 2017 In : Environmental Science and Technology. 51, 1, p. 506-513 8 p.

Research output: Contribution to journalArticle

Ozone
Petroleum
petroleum hydrocarbon
Hydrocarbons
ozone
2 Citations

Methodology for quantifying engineered nanomaterial release from diverse product matrices under outdoor weathering conditions and implications for life cycle assessment

Lankone, R. S., Challis, K. E., Bi, Y., Hanigan, D., Reed, R. B., Zaikova, T., Hutchison, J. E., Westerhoff, P., Ranville, J., Fairbrother, H. & Gilbertson, L. M. 2017 In : Environmental Science: Nano. 4, 9, p. 1784-1797 14 p.

Research output: Contribution to journalArticle

Weathering
Nanostructured materials
Life cycle
life cycle
weathering
4 Citations

Multi-day diurnal measurements of Ti-containing nanoparticle and organic sunscreen chemical release during recreational use of a natural surface water

Reed, R. B., Martin, D. P., Bednar, A. J., Montaño, M. D., Westerhoff, P. & Ranville, J. F. 2017 In : Environmental Science: Nano. 4, 1, p. 69-77 9 p.

Research output: Contribution to journalArticle

Sun hoods
Titanium
Surface waters
titanium
Nanoparticles
Ion Exchange Resins
Aluminum Oxide
Fluorides
fluoride
Nitrates
3 Citations

Prospecting nanomaterials in aqueous environments by cloud-point extraction coupled with transmission electron microscopy

Yang, Y., Reed, R., Schoepf, J., Hristovski, K., Herckes, P. & Westerhoff, P. Apr 15 2017 In : Science of the Total Environment. 584-585, p. 515-522 8 p.

Research output: Contribution to journalArticle

Nanostructured materials
transmission electron microscopy
Transmission electron microscopy
Surface waters
Water
2 Citations
Arsenic
Chromium
Sorbents
ranking
chromium
2 Citations

Superfine powdered activated carbon incorporated into electrospun polystyrene fibers preserve adsorption capacity

Apul, O. G., Hoogesteijn von Reitzenstein, N., Schoepf, J., Ladner, D., Hristovski, K. D. & Westerhoff, P. Aug 15 2017 In : Science of the Total Environment. 592, p. 458-464 7 p.

Research output: Contribution to journalArticle

Polystyrenes
Activated carbon
activated carbon
adsorption
Adsorption

The efficacy and environmental implications of engineered TiO2 nanoparticles in a commercial floor coating

Bi, Y., Zaikova, T., Schoepf, J., Herckes, P., Hutchison, J. E. & Westerhoff, P. 2017 In : Environmental Science: Nano. 4, 10, p. 2030-2042 13 p.

Research output: Contribution to journalArticle

coating
Tile
Nanoparticles
Coatings
abrasion
1 Citations

Wastewater discharge impact on drinking water sources along the Yangtze River (China)

Wang, Z., Shao, D. & Westerhoff, P. Dec 1 2017 In : Science of the Total Environment. 599-600, p. 1399-1407 9 p.

Research output: Contribution to journalArticle

Potable water
Drinking Water
Wastewater
Rivers
drinking water
1 Citations

Zebrafish embryo toxicity of 15 chlorinated, brominated, and iodinated disinfection by-products

Hanigan, D., Truong, L., Simonich, M., Tanguay, R. & Westerhoff, P. Aug 1 2017 In : Journal of Environmental Sciences. 58, p. 302-310 9 p.

Research output: Contribution to journalArticle

Disinfection
disinfection
Byproducts
Toxicity
embryo
2016
3 Citations
semiconductor industry
Ions
Semiconductor materials
Nanoparticles
adsorption
2 Citations

A facile method for separating and enriching nano and submicron particles from titanium dioxide found in food and pharmaceutical products

Faust, J. J., Doudrick, K., Yang, Y., Capco, D. G. & Westerhoff, P. Oct 1 2016 In : PLoS One. 11, 10, e0164712

Research output: Contribution to journalArticle

titanium dioxide
foods
Zonal Centrifugation
Mastication
Chewing Gum
1 Citations

Carbonaceous nano-additives augment microwave-enabled thermal remediation of soils containing petroleum hydrocarbons

Apul, O. G., Delgado, A. G., Kidd, J., Alam, F., Dahlen, P. & Westerhoff, P. 2016 In : Environmental Science: Nano. 3, 5, p. 997-1002 6 p.

Research output: Contribution to journalArticle

Petroleum
petroleum hydrocarbon
Hydrocarbons
Remediation
remediation
11 Citations

Comparative analysis of the photocatalytic reduction of drinking water oxoanions using titanium dioxide

Marks, R., Yang, T., Westerhoff, P. & Doudrick, K. Nov 1 2016 In : Water Research. 104, p. 11-19 9 p.

Research output: Contribution to journalArticle

Bromates
Nitrites
Chlorates
Potable water
Drinking Water
2 Citations

Comparison of hydrophobic and amphiphilic fractions of dissolved organic matter from a water reservoir by Fourier transform ion cyclotron resonance mass spectrometry

Song, G., Mesfioui, R., Dotson, A., Westerhoff, P. & Hatcher, P. Oct 25 2016 (Accepted/In press) In : Journal of Soils and Sediments. p. 1-14 14 p.

Research output: Contribution to journalArticle

dissolved organic matter
Fourier transform
mass spectrometry
ion
acid
54 Citations

Considerations of Environmentally Relevant Test Conditions for Improved Evaluation of Ecological Hazards of Engineered Nanomaterials

Holden, P. A. , Gardea-Torresdey, J. L. , Klaessig, F. , Turco, R. F. , Mortimer, M. , Hund-Rinke, K. , Cohen Hubal, E. A. , Avery, D. , Barceló, D. , Behra, R. , Cohen, Y. , Deydier-Stephan, L. , Ferguson, P. L. , Fernandes, T. F. , Herr Harthorn, B. , Henderson, W. M. , Hoke, R. A. , Hristozov, D. , Johnston, J. M. , Kane, A. B. & 20 others Kapustka, L., Keller, A. A., Lenihan, H. S., Lovell, W., Murphy, C. J., Nisbet, R. M., Petersen, E. J., Salinas, E. R., Scheringer, M., Sharma, M., Speed, D. E., Sultan, Y., Westerhoff, P., White, J. C., Wiesner, M. R., Wong, E. M., Xing, B., Steele Horan, M., Godwin, H. A. & Nel, A. E. Jun 21 2016 In : Environmental Science and Technology. 50, 12, p. 6124-6145 22 p.

Research output: Contribution to journalReview article

Nanostructured materials
Hazards
hazard
ecotoxicology
hazard assessment
10 Citations

Granular activated carbon treatment may result in higher predicted genotoxicity in the presence of bromide

Krasner, S. W., Lee, T. C. F., Westerhoff, P., Fischer, N., Hanigan, D., Karanfil, T., Beita-Sandí, W., Taylor-Edmonds, L. & Andrews, R. C. Sep 6 2016 In : Environmental Science and Technology. 50, 17, p. 9583-9591 9 p.

Research output: Contribution to journalArticle

Activated carbon treatment
Disinfection
genotoxicity
Bromides
bromide
8 Citations

How important is drinking water exposure for the risks of engineered nanoparticles to consumers?

Tiede, K., Hanssen, S. F., Westerhoff, P., Fern, G. J., Hankin, S. M., Aitken, R. J., Chaudhry, Q. & Boxall, A. B. A. Jan 2 2016 In : Nanotoxicology. 10, 1, p. 102-110 9 p.

Research output: Contribution to journalArticle

Potable water
Drinking Water
Nanoparticles
Water
Metals
2 Citations

LC/QTOF-MS fragmentation of N-nitrosodimethylamine precursors in drinking water supplies is predictable and aids their identification

Hanigan, D., Ferrer, I., Thurman, E. M., Herckes, P. & Westerhoff, P. Feb 3 2016 (Accepted/In press) In : Journal of Hazardous Materials.

Research output: Contribution to journalArticle

Dimethylnitrosamine
Water Supply
Water supply
Potable water
Drinking Water
5 Citations

Methods for the Detection and Characterization of Silica Colloids by Microsecond spICP-MS

Montaño, M. D., Majestic, B. J., Jämting, Å. K., Westerhoff, P. & Ranville, J. F. May 3 2016 In : Analytical Chemistry. 88, 9, p. 4733-4741 9 p.

Research output: Contribution to journalArticle

Colloids
Silicon Dioxide
Gases
Silicon
Nanostructured materials
2 Citations

Microwave-assisted digestion and NaOH treatment of waste-activated sludge to recover phosphorus by crystallizing struvite

Wang, Y., Zhang, T., Westerhoff, P., Jiang, R., Ren, H., Yang, Y. & Li, Z. Aug 31 2016 (Accepted/In press) In : Environmental Technology (United Kingdom). p. 1-12 12 p.

Research output: Contribution to journalArticle

struvite
Phosphorus
activated sludge
digestion
Microwaves
5 Citations

Morphology, structure, and properties of metal oxide/polymer nanocomposite electrospun mats

Hoogesteijn Von Reitzenstein, N., Bi, X., Yang, Y., Hristovski, K. & Westerhoff, P. Sep 5 2016 In : Journal of Applied Polymer Science. 133, 33, 43811

Research output: Contribution to journalArticle

Oxides
Nanocomposites
Polymers
Metals
Nanoparticles
4 Citations

N-Nitrosamine formation kinetics in wastewater effluents and surface waters

Zhang, J., Hanigan, D., Westerhoff, P. & Herckes, P. 2016 In : Environmental Science: Water Research and Technology. 2, 2, p. 312-319 8 p.

Research output: Contribution to journalArticle

Nitrosamines
Surface waters
Effluents
Wastewater
effluent
3 Citations

Novel Ion-Exchange Coagulants Remove More Low Molecular Weight Organics than Traditional Coagulants

Zhao, H., Wang, L., Hanigan, D., Westerhoff, P. & Ni, J. Apr 5 2016 In : Environmental Science and Technology. 50, 7, p. 3897-3904 8 p.

Research output: Contribution to journalArticle

Coagulants
ion exchange
Ion exchange
Organic carbon
Molecular weight
15 Citations

Overcoming implementation barriers for nanotechnology in drinking water treatment

Westerhoff, P., Alvarez, P., Li, Q., Gardea-Torresdey, J. & Zimmerman, J. 2016 In : Environmental Science: Nano. 3, 6, p. 1241-1253 13 p.

Research output: Contribution to journalReview article

nanotechnology
Water treatment
Nanotechnology
Potable water
Drinking Water
7 Citations

Ozone enhances biodegradability of heavy hydrocarbons in soil

Chen, T., Maldonado, J., Delgado, A. G., Zuo, Y., Yavuz, B. M., Westerhoff, P., Proctor, A. J., Krajmalnik-Brown, R. & Rittmann, B. E. Jun 1 2016 In : Journal of Environmental Engineering and Science. 11, 1, p. 7-17 11 p.

Research output: Contribution to journalArticle

Ozone
Biodegradability
petroleum hydrocarbon
Hydrocarbons
Petroleum
22 Citations

Potential Environmental Impacts and Antimicrobial Efficacy of Silver- and Nanosilver-Containing Textiles

Reed, R. B., Zaikova, T., Barber, A., Simonich, M., Lankone, R., Marco, M., Hristovski, K., Herckes, P., Passantino, L., Fairbrother, D. H., Tanguay, R., Ranville, J. F., Hutchison, J. E. & Westerhoff, P. K. Apr 5 2016 In : Environmental Science and Technology. 50, 7, p. 4018-4026 9 p.

Research output: Contribution to journalArticle

Silver
Environmental impact
silver
Textiles
environmental impact
26 Citations

Quantification of Carbon Nanotubes in Environmental Matrices: Current Capabilities, Case Studies, and Future Prospects

Petersen, E. J., Flores-Cervantes, D. X., Bucheli, T. D., Elliott, L. C. C., Fagan, J. A., Gogos, A., Hanna, S., Kägi, R., Mansfield, E., Bustos, A. R. M., Plata, D. L., Reipa, V., Westerhoff, P. & Winchester, M. R. May 3 2016 In : Environmental Science and Technology. 50, 9, p. 4587-4605 19 p.

Research output: Contribution to journalArticle

Carbon Nanotubes
future prospect
matrix
standardization
Standardization
16 Citations

Recovery opportunities for metals and energy from sewage sludges

Mulchandani, A. & Westerhoff, P. Sep 1 2016 In : Bioresource Technology. 215, p. 215-226 12 p.

Research output: Contribution to journalReview article

Sewage sludge
Metals
Liquefaction
Recovery
liquefaction
4 Citations
Anion Exchange Resins
Sorbents
Oxides
Environmental impact
Life cycle
2 Citations

Severe weather effects on water quality in Central Arizona

Barry, M., Chiu, C. A. & Westerhoff, P. Apr 1 2016 In : Journal - American Water Works Association. 108, 4, p. E221-E231

Research output: Contribution to journalArticle

severe weather
Water quality
Turbidity
Organic carbon
water quality
3 Citations
Dimethylnitrosamine
Potable water
Biological materials
Sorption
Desorption
28 Citations

Total Value of Phosphorus Recovery

Mayer, B. K., Baker, L. A., Boyer, T. H., Drechsel, P., Gifford, M., Hanjra, M. A., Parameswaran, P., Stoltzfus, J., Westerhoff, P. & Rittmann, B. E. Jul 5 2016 In : Environmental Science and Technology. 50, 13, p. 6606-6620 15 p.

Research output: Contribution to journalArticle

Phosphorus
phosphorus
Recovery
Mineral Waters
nonrenewable resource
5 Citations

Treatment of heavy, long-chain petroleum-hydrocarbon impacted soils using chemical oxidation

Apul, O. G., Dahlen, P., Delgado, A. G., Sharif, F. & Westerhoff, P. Dec 1 2016 In : Journal of Environmental Engineering (United States). 142, 12, 04016065

Research output: Contribution to journalArticle

Petroleum
petroleum hydrocarbon
Hydrocarbons
Crude oil
Soils