PUBLICATIONS AND PRESENTATIONS

Books and Other Major Works

1) Recovery, Recycle and Reuse of Industrial Waste, K. E. Noll, C.N. Haas,C. Schmidt and P. Kodukula, Lewis Publishers, Chelsea MI (1985).
2) Process Design Manual for Wastewater Disinfection, coauthored by C.N. Haas. US EPA Center For Environmental Research Information, Cincinnati (1986).
3) Experimental Methodologies for the Determination of Disinfection Effectiveness, C.N. Haas, J.C. Hornberger, U. Anmangandla, M. Heath and J. Jacangelo. AWWA Research Foundation and American Water Works Association, Denver CO (1993).
4) Hazardous and Industrial Waste Treatment, (1995) Prentice-Hall, C.N. Haas and R. Vamos.
5) Development and Validation of Rational Design Methods of Disinfection (1995), AWWA Research Foundation, C.N. Haas, J. Joffe, J.C. Hornberger, U. Anmangandla, M. Heath and J. Jacangelo.
6) Benefits and Risks of Wastewater Chlorination (1997), The Chlorine Institute Inc. (Washington DC), Pamphlet 157, 193 pages, C.N. Haas, A. Fazil and A. Khan.
7) Benefits and Risks of Cooling Water Chlorination (1997), The Chlorine Institute Inc. (Washington DC), Pamphlet 158, 188 pages, C.N. Haas, A. Fazil and A. Khan.
8) Integrated Disinfection Design Framework (1998), AWWA Research Foundation and American Water Works Association, Denver CO, W.D. Bellamy, G.R. Finch and C.N. Haas.
9) Development of Disinfection Guidelines for the Installation and Replacement of Water Mains, AWWA Research Foundation, Denver CO, C.N. Haas, R.B. Chitluru, M. Gupta, W.O. Pipes, and G.A. Burlingame. (1998)
10) Quantitative Microbial Risk Assessment, C.N. Haas, J.B. Rose and C.P. Gerba, John Wiley (NY) (1999).
11) Methodologies for the Determination of Disinfection Effectiveness, AWWA Research Foundation, C.N. Haas and G.R. Finch, Denver CO (2001).
12) Data Review on the Physical/Chemical Removal of Cryptosporidium, AWWA Research Foundation, C.N. Haas, K. French, G.R. Finch and R.K. Guest, Denver CO (2001).
13) Inactivation of Waterborne Emerging Pathogens by Selected Disinfectants, AWWA Research Foundation, J.G. Jacangelo, N.L. Patania, R.R. Trussell, C.N. Haas and C. Gerba, Denver CO (2002).
14) Effect of Initial Microbial Concentration on Disinfection Efficiency, AWWA Research Foundation, C.N. Haas and B. Kaymak, Denver CO (2002).

Peer Reviewed Publications

1) "Oxygen Uptake Rate as an Activated Sludge Control Parameter." Journal of the Water Pollution Control Federation, 51, 938-943 (1979), Charles N. Haas.
2) "Physiological Alterations of Vegetative Microorganisms Resulting From Aqueous Chlorination." Journal of the Water Pollution Control Federation, 52, 1976-1989 (1980), C.N. Haas and R.S. Engelbrecht.
3) "Chlorine Dynamics During Inactivation of Coliforms, Acid-Fast Bacteria and Yeasts." Water Research, 14, 1749-1757 (1980), C.N. Haas and R.S. Engelbrecht.
4) "A Mechanistic Kinetic Model for Chlorine Disinfection." Environmental Science and Technology, 14, 339-340 (1980), C.N. Haas.

5) "Application of Predator--Prey Models to Disinfection." Journal of the Water Pollution Control Federation, 53, 378-386 (1981), C.N. Haas.
6) "Rational Approaches in the Analysis of Chemical Disinfection Kinetics." Chapter in W. Cooper (ed.) Chemistry in Water Reuse. Vol. 1, pp. 381-399. Ann Arbor Science Publishers, Inc. (1981), C.N. Haas.
7) "Practical Mixed Culture Processes." Advances in Fermentation Processes, 4, 1-29 (1980), C.N. Haas, H.R. Bungay and M.L.Bungay.
8) "Biological Process Diffusional Limitations." Journal of the Environmental Engineering Division, ASCE, 107, 269-273 (1981), C.N. Haas.
9) "Repeated Exposure of Escherichia coli to Free Chlorine: Production of Strains Possessing Altered Sensitivity." Water, Air and Soil Pollution,16, 233-242 (1981), C.N. Haas and E.C. Morrison.
10) "Sodium Alterations of Chlorine Equilibria: Quantitative Description." Environmental Science and Technology, 15, 1243-1244 (1981), C.N.Haas.
11) "Evaluation of the m-SPC Method as a Substitute for the Standard Plate Count in Water Microbiology." Journal of the American Water Works Association, 74, 322 (1982), C.N. Haas, M.A. Meyer and M.S. Paller.
12) "Enhancement of Chlorine Inactivation of E. coli by Sodium Ions." Water Chlorination Environmental Impact and Health Effects, volume 4, book 2, pp1087-96, edited by R.L. Jolley, Ann Arbor Science (1983), C.N. Haas and M. Zapkin.
13) "The Ecology of Acid-Fast Organisms in Water Supply, Treatment and Distribution Systems." Journal of the American Water Works Association, 75, 139-44 (1983), C.N. Haas, M.A. Meyer and M.S. Paller.
14) "Estimation of Risk Due to Low Doses of Microorganisms: A Comparison of Alternative Methodologies." American Journal of Epidemiology, 118,573-82 (1983), C.N. Haas.
15) "The Utility of Endotoxins as a Surrogate Indicator in Potable Water Microbiology." Water Research, 17, 803-7 (1983), C.N. Haas, M.A. Meyer,M.S. Paller and M.A. Zapkin.
16) "Effect of Effluent Disinfection on Risks of Viral Disease Transmission via Recreational Exposure." Journal of the Water Pollution Control Federation. 55, 1111-6 (1983), C.N. Haas.
17) "Engineering at the Microorganism Scale." Advances In Fermentation Processes, 6, 149-73 (1983), H.R. Bungay, M.L. Bungay and C.N. Haas.
18) "Microbial Dynamics in GAC Filtration of Potable Water." ASCE Journal of Environmental Engineering, 109, 956-61 (1983), C.N. Haas, M.A. Meyer and M.S. Paller.
19) "Application of Ion Exchangers to Recovery of Metal from Semiconductor Wastes." Reactive Polymers, 2, 61-70 (1984), C.N. Haas and V. Tare.
20) "Microbial Alterations in Water Distribution Systems and Their Relationship to Physical-Chemical Characteristics." Journal of the American Water Works Association, 75, 475-481 (1983), C.N. Haas, M.A. Meyer and Marc S. Paller.
21) "Kinetics of Wastewater Chlorine Demand Exertion," Journal of the Water Pollution Control Federation, 56, 170-3 (1984) C.N. Haas and S.B.Karra.
22) "Kinetics of Metal Removal by Chelating Resin from a Complex Synthetic Wastewaters." Water Air & Soil Pollution, 22, 429-39 (1984) V.Tare, S.B. Karra, and C.N. Haas.
23) "Estimation of Effective Intra-Particle Diffusion Coefficients with Differential Reactor Columns," Journal of the Water Pollution Control Federation, 56, 442-8 (1984) A.A. Aguwa, J.W. Patterson, C.N. Haas and K.E.Noll.
24) "Is Sodium Thiosulfate a Suitable Neutralizer For Chlorine in Microbiological Determinations?", C.N. Haas and M.A. Zapkin. Journal of Environmental Science and Health Part A: Environmental Science and Engineering, 19, 507-20 (1984).
25) "Kinetic Limitations on the Selective Precipitation Treatment of Electronics Wastes." Water Air & Soil Pollution, 24, 253-65 (1985) S.B. Karra, C.N. Haas, V. Tare and H.E. Allen.
26) "Kinetics of Microbial Inactivation By Chlorine. I. Review of Results in Demand-Free systems." Water Research, 18, 1443-1449 (1984),C.N. Haas and S.B. Karra.
27) "Kinetics of Microbial Inactivation By Chlorine. II. Kinetics in the Presence of Chlorine Demand." Water Research, In 18, 1451-4 (1984), C.N.Haas and S.B. Karra.
28) "Field Observations on the Occurrence of New Indicators of Disinfection Efficiency." Water Research, 19, 323-9 (1985), C.N. Haas, B.F. Severin, D. Roy, R.S. Engelbrecht, A. Lalchandani, and S. Farooq.
29) "Influence of Sodium, Potassium and Lithium on Hypochlorite Solution Equilibria." Water Chlorination Environmental Impact and Health Effects,volume 5, pp775-782 edited by R.L. Jolley, Lewis Publishers (1985), C.N.Haas and D.M. Brncich.
30) "Removal of New Indicators by Coagulation-Flocculation and Sand Filtration." Journal of the American Water Works Association, 77, 67-71 (1985). C.N. Haas, B.F. Severin, D. Roy, R.S. Engelbrecht, and A.Lalchandani.
31) "Direct Differential Reactor Studies on Adsorption from Concentrated Liquid and Gaseous Solutions." in Fundamentals of Adsorption Processes, A. Meyers and G. Belfort [eds.], pp411-20, United Engineering Trustees, NY (1984), K.E. Noll, C.N. Haas, J-P. Menez, A.A. Aguwa, M. Satoh, A. Belalia and P.S. Bartholomew.
32) "Sensitivity of Vegetative Protozoa to Free and Combined Chlorine. "Water Chlorination Environmental Impact and Health Effects, volume 5, pp 667-80 edited by R.L. Jolley, Lewis Publishers (1985), C.N. Haas, K. Khater and A. Wojtas.
33) "Economic Incentives for Hazardous Waste Management." Journal of Environmental Systems, C.N. Haas, 14, 373-93 (1985).
34) "Toluene-Humic Acid Association Equilibria: Isopiestic Measurements." Environmental Science and Technology, 19, 643- 5 (1985) C.N. Haas and B.M. Kaplan.
35) "Adsorption of Cadmium to Kaolinite in the Presence of Organic Materials." Water, Air and Soil Pollution, 27, 131-40 (1986) C.N. Haas and N.D. Horowitz.
36) "Revegetation Using Coal Ash Mixtures," ASCE Journal of Environmental Engineering,", 111, 559-73 (1985) C.N. Haas and J.J. Macak.
37) "Validation of the Hazard Ranking System for the Assessment of Feedstock Frequencies in Superfund Site Contaminants", Hazardous Waste and Hazardous Materials, 2, 535 (1985) G.A. Vanderlaan and C.N. Haas.

38) "Statistics of Enumerating Total Coliforms In Water Samples by Membrane Filter Procedures", Water Research, 20, 525-30 (1986) C.N. Haas and B. Heller.
39) "A Heuristic Relationship for Faculty Size in Engineering Schools," Engineering Education, 78(7):710-11 (1988), C.N. Haas.
40) "Wastewater Disinfection and Infectious Disease Risks", CRC Critical Reviews in Environmental Control, 17, 1, 1-20 (1986), C.N. Haas.
41) "Alteration of Chemical and Disinfectant Properties of Hypochlorite by Sodium, Potassium and Lithium", Environmental Science and Technology, 20, 822-6 (1986), C.N. Haas, M.G. Karalius, D.M. Brncich, and M.A. Zapkin.
42) "Kinetics of Cadmium and Copper Hydrolysis", Water Science and Technology, 19, 1021-7 (1987), J.W. Patterson, C.N. Haas, R.J. Vamos, and E. Cooney.
43) "Recovery, Recycle and Reuse of Hazardous Waste", Journal of the Air Pollution Control Association, 36, 1163-8 (1986) K.E. Noll, C.N. Haas and J.W. Patterson.
44) "Micromixing and Dispersion in Chlorine Contact Chambers",Environmental Technology Letters, 9: 35-44 (1988) C.N. Haas.
45) "Electrolytic Recovery Techniques", chapter in Standard Handbook of Hazardous Waste Treatment, McGraw Hill, A.A. Aguwa and C.N. Haas (1989).
46) "Preliminary Determination of Limiting Nutrients for Indigenous Bacteria in Chicago Intake Water" Water, Air and Soil Pollution, 37:65-72 (1988), C.N. Haas, P. Bitter and P.A. Scheff..
47) "Maximum Likelihood Analysis of Disinfection Kinetics" ,Water Research, 22, 669-77 (1988).
48) "Assessing the Need for Wastewater Disinfection", Journal of the Water Pollution Control Federation, 59, 856-64 (1987), C.N. Haas et al.
49) "On the Existence of Ternary Interactions in Ion Exchange", AIChE Journal, C.N. Haas (1988).
50) "Error in Variables Parameter Estimation", Journal of Environmental Engineering, 115, 259-64 (1989), C.N. Haas.
51) "Effects of Ceasing Disinfection on a Receiving Water", C.N. Haas, J.G. Sheerin and C. Lue-Hing, Journal of the Water Pollution Control Federation, 60, 667-673 (1988).
52) "Averaging TNTC Counts", Applied and Environmental Microbiology, 54(8), 2069-72 (1988), C.N Haas and B. Heller.
53) "Assessment of Risks Associated with Enteric Viruses in Contaminated Drinking Water", in Chemical and Biological Characterization of Sludges, Sediments, Dredge Spoils and Drilling Muds, ASTM STP 976, pps.489-494 (1988), C.P. Gerba and C.N. Haas.
54) "Chemical Composition of Bottled Mineral Water", Archives of Environmental Health, 44, 102-16 (1989), H.E. Allen, M. Halley-Henderson and C.N. Haas.
55) "Test of the Validity of the Poisson Assumption for Analysis of MPN Results", Applied and Environmental Microbiology, 54(12), 2996-3002 (1988), C.N. Haas and B. A. Heller.
56) "Analysis of Disinfection Data from Dilution Count Experiments", Water Research, 23, 345-9 (1989), C.N. Haas.
57) "Statistics of Microbial Disinfection", Water Science and Technology, 21, 3, 197-201 (1989), C.N. Haas and B. Heller.
58) "Estimation of Microbial Densities from Dilution Count Experiments", Applied and Environmental Microbiology, 55, 8, 1934-42 (1989), C.N. Haas.
59) "Kinetics of Inactivation of Giardia lamblia by Free Chlorine", Water Research, 24, 2, 233-8 (1990) C.N. Haas and B.Heller.
60) "Estimation of Averages in Truncated Samples", Environmental Science and Technology, 24, 912-19 (1990) C.N. Haas and P.A. Scheff.
61) "High Rate Coliform Disinfection of Stormwater Overflow", Journal of the Water Pollution Control Federation, 62, 282-7 (1990) C.N. Haas, K. Longley and T. Selfridge.
62) "Chloroform Formation by the Transfer of Active Chlorine from Monochloramine to Phloroacetophenone", Water Chlorination Environmental Impact and Health Effects, volume 6, pp649-64 edited by R.L. Jolley et al., Lewis Publishers (1990) K.V. Topudurti and C.N. Haas.
63)"Further Studies of Hypochlorite Ion Pair Chemistry and Disinfection Efficiency", Water Chlorination Environmental Impact and Health Effects, volume 6, pp729-740 edited by R.L. Jolley et al., Lewis Publishers (1990) C.N. Haas, C.D. Trivedi and J.R. O'Donnell.
64) "A Microbiological Perspective on Risks from Water Chlorination", Water Chlorination Environmental Impact and Health Effects, volume 6, pp971-2 edited by R.L. Jolley et al., Lewis Publishers (1990) C.N. Haas.
65) "Disinfection", chapter 14 (pp877-932) in Water Quality and Treatment, 4th edition, F.W. Pontius [ed.], Mc Graw Hill, NY (1990).

66) "Inactivation of E. coli by Combined Action of Free Chlorine and Monochloramine",Water Research, 25, 1027-32 (1991). Y. Kouame and C.N. Haas.
67) "THM Formation by the Transfer of Active Chlorine from Monochloramine to Phloroacetophenone", Journal of the American Water Works Association, May (1991) pps 64-6. K.V. Topudurti and C.N. Haas.
68) "Modeling Risk from Giardia and Viruses in Drinking Water", Journal of the American Water Works Association, 83, 11, 76-84 (1991), S. Regli, J. Rose, C.N. Haas and C. Gerba.
69) "Risk Assessment and the Control of Waterborne Giardiasis", American Journal of Public Health, 81, 709-13 (1991) J.B. Rose, C.N. Haas and S. Regli.
70) "Fundamental Considerations in Development of Solvent Dissolution Processes for Plastics", Journal of Resource Management and Technology, 19, 4, 186-91 (1991). C.N. Haas and C.R. Brougnier.
71) "A New Approach for the Analysis of Mixture Toxicity Data", Water Science and Technology, 26, 9-11, 2345-48 (1992), C.N. Haas.
72) "Development of Regression Models with Below Detection Limit Data", Journal of Environmental Engineering,119,2,214-230 (1993), C.N. Haas and J. Jacangelo.
73) "Survey of Water Utility Disinfection Practices", Journal of the American Water Works Association, September 1992, pages 121-128, C.N. Haas et al.
74) "Biological Sulfide Prestripping for Metal and COD Removal", Water Environment Research, 65, 5, 645-649 (1993) C.N. Haas and C. Polprasert.
75) "Microbial Sampling: Is It Better to Sample Many Times or Use Large Samples?", Water Science and Technology, C.N. Haas, 27(3-4):19-25 (1993).
76) "A New Quantitative Approach for the Analysis of Binary Toxic Mixtures", Environmental Toxicology and Chemistry, 13:149-156 (1994), C.N. Haas and B.A. Stirling.
77) "Risk Assessment of Virus in Drinking Water", Risk Analysis, 13(5):545-552 (1993), C.N. Haas, J.B. Rose, C. Gerba and S. Regli.
78) "Reduction of Ion Exchange Equilibria Data Using an Error in Variables Approach", AIChE Journal, 40(3):556-569 (1994) R.J. Vamos and C.N. Haas.
79) "Waterborne Pathogens: Assessing Health Risks", Health and Environment Digest, 7(3):1-2, J.B. Rose, C.N. Haas and C.P. Gerba (1993).
80) "Quantifying Microbiological Risks", in G.F. Craun [ed], Safety of Water Disinfection: Balancing Chemical and Microbial Risks, pps. 389-398, ILSI Press, Washington DC (1993), C.N. Haas.
81) "Proposed Decision Tree for Managment of Risks in Drinking Water: Consideration for Health and Socioeconomic Factors", in G.F. Craun [ed], Safety of Water Disinfection: Balancing Chemical and Microbial Risks, pps. 39-80, ILSI Press, Washington DC (1993), S. Regli, P. Berger, B. Macler and C.N. Haas.
82) "Development and Verification of a New Method for Analysis of Giardia Disinfection", Journal of the American Water Works Association, 86(2):115-120 (1994), C.N. Haas, J. Hornberger, U. Anmangandla, M. Heath and J. Jacangelo.
83) "Unified Kinetic Treatment for Growth on Multiple Nutrients", Biotechnology and Bioengineering, 44:154-64 (1994), C.N. Haas.
84) "The Potential for 'Natural' Production of Chlorinated Organics", Risk Analysis, 14(2):143-145, C.N. Haas (1994).
85) "Risk Analysis as a Standard Setting Tool", Water Quality International, 4:30-32 (1994). C.N. Haas.
86) "Dose-Response Analysis Using Spreadsheets", Risk Analysis, 14(6):1097-1100 (1994), C.N. Haas.
87) "Disinfection Under Dynamic Conditions: Modification of Hom's Model for Decay", Environmental Science and Technology, 28(7):1367-9 (1994) C.N. Haas and J. Joffe.
88) "Comment on 'Disinfection of Oocysts of Cryptosporidium parvum by Sand and Chlorine", Water Research 27(6):729 (1995), C.N. Haas.
89) "Protozoan Monitoring: From the ICR to ESWTR", Journal of the American Water Works Association, 87(8):50-59 (1995), C.S. Crockett and C.N. Haas.

90) "The Effect of Water Quality on Disinfection Kinetics", Journal of the American Water Works Association, C.N. Haas, J. Joffe, U. Anmangandla, J. Jacangelo, and M. Heath, 88:3:95-103 (1996).
91) "How To Average Microbial Densities to Characterize Risk", Water Research, 30(4):1036-8 (1996). C.N. Haas,
92) "Verification of a Mechanistic Model for Chloroform Formation from a Model Precursor During Water Chlorination", C.N. Haas and K. Topudurti, chapter 15 in Disinfection By-Products in Water Treatment, RA Minear and GL Amy (eds.), Lewis Publishers, Boca Raton (1996).
93) "Development of an Action Level for Cryptosporidium", Journal of the American Water Works Association, 87(9):81-84, CN Haas, JB Rose (1995).
94) "Effect of sufate on anaerobic processes fed with dual substrates", Water Science and Technology 31(9):101, C. Polprasert and C.N. Haas (1995).
95) "Linking Microbiological Criteria for Foods with Quantitative Risk Assessment", Journal of Food Safety, 15:121-32 (1995), J.B. Rose, C.N. Haas and C.P. Gerba.
96) "Prevalence of Shigellosis in the U.S.: Consistency with Dose-Response Information", C. Crockett, C.N. Haas, A. Fazil, J.B. Rose, and C.P. Gerba, International Journal of Food Microbiology, 30(1-2):87-100 (1996).
97) "Sensitive Populations: Who is at the Greatest Risk", CP Gerba, JB Rose and CN Haas, International Journal of Food Microbiology, 30(1-2):113-124 (1996).
98) "Quantitative Description of Mixture Toxicity: Effect of Level of Response on Interactions", Environmental Toxicology and Chemistry, 15(8):1429-37 (1996). Charles N. Haas, Kaushik Cidambi, Sean Kersten and Kenneth Wright.
99) "Distribution of Cryptosporidium Oocysts in Water Supplies", Water Research, C.N. Haas and J.B. Rose, 30(10):2251-54 (1996).
100) "Monte Carlo Assessment of Microbial Risk Associated with Landfilling of Fecal Material", Water Environment Research, 68(7):1123-31 (1996) CN Haas, J Anotai and RS Engelbrecht.
101) "Continuous Flow Residence Time Distribution Function Characterization", Journal of Environmental Engineering, 123(2):107-114 (1997). C.N. Haas, J. Joffe, M. Heath and J. Jacangelo.
102) "Moment Analysis of Tracer Experiments", Journal of Environmental Engineering, CN Haas, 122(12):1121-23 (1996).
103) "Waterborne Rotavirus: A Risk Assessment", CP Gerba, JB Rose, CN Haas and KD Crabtree, Water Research, 30(12):2929-40 (1996).
104) "Generalization Of Independent Response Model For Toxic Mixtures", Chemosphere, 34(4):699-710 (1997). Charles N. Haas, Sean Patrick Kersten, Ken Wright, Maurice J. Frank and Kaushik Cidambi.
105) "Infectivity of Cryptosporidium parvum Oocysts", CN Haas, C Crockett, JB Rose, C Gerba and A Fazil, Journal of the American Water Works Association, 88(9):131-136 (1996).
106) "Assessment of the Dose-Response Relationship of Campylobacter jejuni" International Journal of Food Microbiology, 30(1-2):101-112 (1996). GJ Medema, PFM Teunis, AH Havelaar and CN Haas.
107) "What Predictive Food Microbiology can Learn from Water Microbiology", Food Technology,51(4):91-94 (1997). CN Haas, JB Rose, CP Gerba and CS Crockett.
108) "Importance of Distributional Form in Characterizing Inputs to Monte Carlo Risk Assessments", CN Haas, Risk Analysis, 17(1):107-113 (1997).
109) "Understanding Protozoa in Your Watershed", Journal of the American Water Works Association, CS Crockett and CN Haas, 89(9):62-73.
110) "Waterborne Adenovirus: A Risk Assessment", Water Science and Technology, 35(11/12):1-6 (1997), KD Crabtree, CP Gerba, JB Rose, CN Haas.
111) "Risk Assessment of Opportunistic Bacterial Pathogens in Drinking Water", Reviews in Environmental Contamination and Toxicology, 152:57-83 (1997), PA Rusin, JB Rose, CN Haas and CP Gerba.
112) ["The Role of Risk Assessment in Setting United States Drinking Water Standards"] (in Japanese), Journal of Japan Water Works Association, 67(9):42-51 (1998), C.N. Haas.
113) "Kinetics of Electroporation-Assisted Chlorination of Giardia", C.N. Haas and D. Aturaliye, Water Research, 33 (8):1761-6 (1999)..
114) "Predicting Disinfection Performance In Continuous Flow Systems From Batch Disinfection Kinetics", CN Haas, J. Joffe, M Heath, J. Jacangelo, U. Anmangandla, Water Science & Technology, 38(6):171-9 (1998).
115) "Frameworks for Assessing Reliability of Multiple, Independent Barriers in Potable Water Reuse" , CN Haas and RR Trussell, Water Science & Technology, 38(6):1-8 (1998).
116) "Bacterial Levels of New Mains", CN Haas, M. Gupta, GA Burlingame, RB Chitluru and WO Pipes, Journal of the American Water Works Association, 91(5):78-94 (1999).
117) "Semi-quantitative Characterization of Electroporation Assisted Disinfection Processes for Inactivation of Giardia and Cryptosporidium", CN Haas and D Aturaliye, Journal of Applied Microbiology, 86(6):899-905 (1999).
118) "Benefits of Using a Disinfectant Residual", Journal of the American Water Works Association, 91(1):65-69 (1999), C.N. Haas. Also published in Journal of Water Services Research & Technology - Aqua, 48 (1):11-15 (1999).
119) "On Modeling Correlated Random Variables in Risk Assessment", C.N. Haas, Risk Analysis, 19(6):1205-14 (1999).
120) "Development and Validation of Dose-Response Relationships for Listeria monocytogenes", CN Haas, A. Thayyar-Madabusi, J.B. Rose and C.P. Gerba, Quantitative Microbiology, 1(1):89-102 (1999)..
121) "Interactions Between Phenanthrene and Zinc in their Toxicity to the Sheepshead Minnow (Cyprinodon variegatus)." C.J. Moreau, P.L. Klerks and C.N. Haas, Archives of Environmental Contamination and Toxicology, 37:251-257 (1999).
122) "Dose-Response Models for Infectious Gastoenteritis", P.F.M. Teunis, N.J.D. Nagelkerke and C.H. Haas, Risk Analysis, 19(6):1251-60 (1999).
123) "Disinfection", by C.N. Haas, Chapter 14 in Water Quality and Treatment, 5th Edition (R.D. Letterman, ed.). American Water Works Association/McGraw Hill (1999).
124) "Use of Quantitative Microbial Risk Assessment for Evaluation of the Benefits of Laundry Sanitation", L.L. Gibson, J.B. Rose and C.N. Haas, American Journal of Infection Control, 27(6):S34-39 (1999).
125) "A Risk Assessment Framework for the Evaluation of Skin Infections and the Potential Impact of Antibacterial Soap Washing", J.B. Rose and C.N. Haas, American Journal of Infection Control, 27(6):S27-S33 (1999).

126) "Chlorination of HPC Washed from Water Mains", C.N. Haas, G. Burlingame, M. Gupta and R. Chitluru, Aqua, 49(3):159-168 (2000).
127) "Development of a Dose-Response Relationship for Escherichia coli O157:H7", CN Haas, A. Thayyar-Madabusi, J.B. Rose and C.P. Gerba, International Journal of Food Microbiology, 56(2:3): 153-159 (2000).
128) "Meta-Analysis of Cryptosporidium Removal Using Dissolved Air Flotation in Water Treatment", KA French, CN Haas, G Finch and R Guest, Water Research, 34(16):4116-9 (2000).
129) "Epidemiology, Microbiology and Risk Assessment of Waterborne Pathogens Including Cryptosporidium", CN Haas, Journal of Food Protection, 63: (6) 827-831(2000)..
130) "Peer Review of Metropolitan Water Reclamation District of Greater Chicago's Application for Designation of Processes to Further Reduce Pathogens", C.N. Haas, R.C. Loehr, N.S. Raju, R. Reimers, M. Sobsey and L. Wilcher. Metropolitan Water Reclamation District of Greater Chicago, Research and Development Department Report, January (2001).
131) ÒDesign Criteria for Inactivation of Cryptosporidium by Ozone in Drinking WaterÓ, G.R. Finch, C.N. Haas, J.A. Oppenheimer, G. Gordon and R.R. Trussell, Ozone Science and Engineering, 23(4):259-84 (2001).
132) ÒComment on ÔEstimating the Infection Risk in Recreational Waters from the Faecal Indicator Concentration and from the Ratio Between Pathogens and IndicatorsÕÓ, Water Research, 35(13):3280-1 (2001), C.N. Haas.
133) "Chlorine Demand in Disinfecting Water Mains", C.N. Haas, M. Gupta, R. Chitlluru and G. Burlingame, Journal of the American Water Works Association, 94(1):97-102 (2002).
134) ÒOn the Risk of Mortality to Primates Exposed to Anthrax SporesÓ, C.N. Haas, Risk Analysis, 22(2):189-93 (2002).
135) "Conditional Dose Response Relationships for Microorganisms: Development and Application", C.N. Haas, Risk Analysis, 22(3):455-63 (2002).
136) "The Role of Risk Analysis in Understanding Bioterrorism", C.N. Haas, Risk Analysis, 22(4):671-7 (2002).
137) "Numerical Simulation of Chlorine Disinfection Processes", D.J. Greene, C.N. Haas and B. Farouk, Water Science and Technology: Water Supply 2(3):167-73 (2002).
138) "Managing Health Risks from Drinking Water -- A Report to the Walkerton Inquiry", Journal of Toxicology and Environmental Health -- Part A, 65:1635-1823 (2002). D. Krewski, J. Balbus, D. Butler-Jones, C. Haas, J. Isaac-Renton, K.J. Roberts, and M. Sinclair.
139) "Comparison of Tissue Culture and Animal Models for Assessment of Cryptosporidium parvum Infection", Experimental Parasitology, 101:97-106 (2002), T.R. Slifko, D.E. Huffman, B. Dussert, J.H. Owens, W.Jakubowski, C.N. Haas and J.B. Rose.
140) "Progress and Data Gaps in Quantitative Microbial Risk Assessment", Water Science and Technology, C.N. Haas, 46:11-12:277-84 (2002).
141) "Quantitative Assessment of Risk Reduction from Hand Washing With Antibacterial Soaps", Journal of Applied Microbiology Symposium Supplement, 92:136S-143S (2002), L.L. Gibson, J.B. Rose, C.N. Haas, C.P. Gerba and P.A. Rusin.
142) "Effect of Initial Microbial Density on Inactivation of Giardia muris by Ozone", C.N. Haas and B. Kaymak, Water Research 37:2980-8 (2003).
143) "Risk Assessment of Waterborne Coxsackievirus", K.D. Mena, C.P. Gerba, C.N. Haas and J.B. Rose, Journal of the American Water Works Association, 95(7):122-131 (2003).
144) “The Milwaukee Cryptosporidium Outbreak: Assessment of Incubation Time and Daily Attack Rate”, M. Gupta and C.N. Haas, Journal of Water and Health, 2(2):59-69 (2004).
145) "Chlorine Inactivation of Adenovirus Type 40 and Feline Calicivirus", J.A. Thurston-Enriquez, C.N. Haas, J. Jacangelo and C.P. Gerba, Applied and Environmental Microbiology. 69(7):3979-85 (2003).
146) "Neural Networks Provide Superior Description of Giardia lamblia Inactivation by Free Chlorine", C.N. Haas, Water Research, 38:3449-57 (2004).
147) “CFD Design Approach for Chlorine Disinfection Processes”, D.J. Greene, B. Farouk, C.N. Haas, Journal of the American Water Works Association, 96(8):138-150 (2004).
148) D. Krewski, J. Balbus, D. Butler-Jones, C. N. Haas, J. Isaac-Renton, K. J. Roberts, and M. Sinclair. "Managing the microbiological risks of drinking water.” Journal of Toxicology and Environmental Health 67:1591-1617, 2004.
149) “Inactivation of Cryptosporidium parvum with Ozone in Treated Drinking Water”, L. Li and C.N. Haas, Journal of Water Supply: Research and Technology – AQUA, 53(5):287-97 (2004).
150) “Estimation of bioaerosol risk of infection to residents adjacent to a land applied biosolids site using an empirically derived transport model”, J.P. Brooks B.D. Tanner, C.P. Gerba, C.N. Haas and I.L. Pepper, Journal of Applied Microbiology, 98: 397-405 (2005).
151) “A National Study on the Residential Impact of Biological Aerosols from the Land Application of Biosolids”, Journal of Applied Microbiology 99:310-22 (2005), JP Brooks, BD Tanner, KL Josephson, CP Gerba, CN Haas and IL Pepper.
152) “Chlorine and Ozone Disinfection of Encephalitozoon intestinalis Spores”, DE John, C.N. Haas, N. Nwachuku and C.P. Gerba, Water Research 39(11):2369-75 (2005)
153) “Use of CFD for Wastewater Disinfection Process Analysis: E.coli Inactivation with Peroxyacetic Acid (PAA)”, International Journal of Chemical Reactor Engineering, 3(A46) (2005), Domenico Santoro, Timothy A. Bartrand, Dennis J. Greene, Bakhtier Farouk, Charles N. Haas, Michele Notarnicola and Lorenzo Liberti.
154) “Assessment of Benefits from Use of Antimicrobial Hand Products: Reduction in Risk from Handling Ground Beef”, International Journal of Hygiene and Environmental Health, C.N. Haas, J. Marie, J. Rose and C.P. Gerba, 208:461-6 (2005).
155) “Inactivation of Enteric Adenovirus and Feline Calicivirus by Ozone”, J.A. Thurston-Enriquez, C.N. Haas, J.A. Jacangelo and C.P. Gerba, Water Research, 39(15):3650-3656 (2005).
156) "It’s Not the Heat, It’s the Humidity: Wet Weather Increases Legionellosis Risk in the Greater Philadelphia Metropolitan Area " Journal of Infectious Diseases 192: 2066-73 (2006), D.N. Fisman, S. Lim, G.A. Wellenis, C. Johnson, P. Britz, M. Gaskins, J. Maher, M.A. Mittleman, C.V. Spain, C.N. Haas and C. Newbern.
157) “Computational Fluid Dynamic Analysis of the Effects of Reactor Configuration on Disinfection Efficiency”, Water Environment Research 78(9):909-919 (2006), DJ Greene, CN Haas and B Farouk.
158) “A Quantitative Microbial Risk Assessment Model for Legionnaires‚ Disease: Assessment Of Human Exposures For Selected Spa Outbreaks”, TW Armstrong and CN Haas, Journal of Occupational & Environmental Hygiene, in press.