Topics A to Z

As part of NEHA's continuos effort to provide convenient access to information and resources, we have gathered together for you the links in this section. Our mission is "to advance the environmental health and protection professional for the purpose of providing a healthful environment for all,” as well as to educate and inform those outside the profession.


Restroom internal door handles have the potential to become contaminated by pathogenic bacteria, particularly because frequent breakdowns occur in hand hygiene. Cleaning these door handles periodically could reduce this cross-contamination risk. The sustained effect following cleaning with chlorhexidine could be beneficial in restroom facilities as cleaning episodes are of necessity at time intervals. The cleaning efficacies and residual effects of Sani Cloth CHG 2% wipes were investigated in a double-blinded randomized crossover controlled trial in a school setting. No significant difference occurred in initial cleaning efficacy; however, following a six-hour period of use by pupils of the restroom facilities, the internal door handles wiped with Sani-Cloth CHG 2% wipes were significantly less contaminated than those with the control wipe (14% v. 32%, p = .02). Cleaning with Sani-Cloth CHG 2% wipes demonstrated significant improvements in the continuous cleanliness of restroom door handles during use with this simple and inexpensive technique.

November 2015
November 2015
78.4 | 14-17
Holly Young, Zara Plumb, James Stevenson, Annabelle Tibbett
Additional Topics A to Z: General Environmental Health

In the Northwest Arctic Borough, the impact of climate on environmental conditions is a fact of life, and with this comes a substantial challenge to the Native Inupiat lifestyle, culture, and traditional subsistence "way of life." Like areas which are being inundated by sea level rise, these changes are affecting drinking water, sanitation and other infrastructure at the "coalface" where these impacts are most evident in the US.  See how environmental health practitioners are providing innovative solutions that promote resilience and adaptation rather than foregoing a cultural and community identity.

July 2015
R. Steven Konkel, PhD

This session will examine the efficacy of cooperation and collaboration in environmental and public health projects. Specific examples involving cross border collaboration and cooperation between professionals from widely differing backgrounds and cultures will be explored. These lessons learned, successes, and failures will help you plan new projects and deliver existing projects more effectively.

July 2015
Stewart Petrie; Dennis Mazali
Potential CE Credits: 1.00
Additional Topics A to Z: Workforce Development

From conception, project design, results, and lessons learned along the way, hear a case study about collaboration between federal, state and local agencies to obtain and use water quality data related to private wells while marketing the use of the data. This case study involves multiple agencies sharing data, data display using geographic information systems (GIS), and unanticipated obstacles. We learned the hard way so you don't have to.

July 2015
Hope Dalton, MPA
Potential CE Credits: 0.50


The Food and Drug Administration recommended restaurant inspection scores change to a format that incorporated three new categories of violations: priority, priority foundation, and core. It was uncertain whether interested consumers would value the more in-depth information or become more confused. The purpose of this study was to assess consumer perception of the recommended inspection system. Data were collected from an online survey. Results showed that consumers want convenient access to the information either online or on the wall of restaurants, and some consumers do want to read inspection reports and use them in making dining decisions. Choice of restaurant inspection format did appear to change consumer understanding and perceptions about some of the violations. Results also demonstrated the importance of the words used to categorize violations.

June 2017
June 2017
79.10 | 20-25
Jooho Kim, PhD, Jing Ma, PhD, Barbara Almanza, PhD, RD


The purpose of this study was to measure particulate matter (PM2.5) in pubs and bars prior to the adoption of a comprehensive, citywide smoke-free ordinance, as well as at multiple time points after adoption. Ten venues in a Southern U.S. city were measured at 1-month preordinance and at 1-, 3-, and 6-month postordinance. Air quality risk was determined by the U.S. Environmental Protection Agency’s Air Quality Index. Data revealed a statistically significant difference (p < .001; Eta2 = .889) in PM2.5 levels for the four time points. Air quality measurements showed that PM2.5 was 202.17 ± 97.89 (mean ± SD) at 1-month preordinance, 25.53 ± 14.18 at 1-month postordinance, 18.00 ± 8.43 at 3-month postordinance, and 10.77 ± 2.45 at 6-month postordinance. At the preordinance measurement, no venue was found to be in the “good” (minimal risk) range of the Air Quality Index; however, 100% of venues presented minimal air quality risk by the 3-month postordinance measurement. This study shows that adoption of smoke-free ordinances yields immediate reductions in health risks with continued air quality improvements up to 6-month postordinance (the last time point measured).


July 2018
July/August 2018
81.1 | 8-15
Ronald D. Williams, Jr., PhD, CHES, Department of Health and Human Performance, Texas State University, Jeff M. Housman, PhD, MCHES, Department of Health and Human Performance, Texas State University, Jennifer L. Evans, MEd, CHES, Department of Health Science, University of Alabama
Jan|Feb 2014
76.6 | 48-54
Mubashir Ahmed, MBBS, MSc, Zafar Fatmi, MBBS, FCPS, Claudio J. Struchiner, Eduardo Massad, MD
Additional Topics A to Z: Hazardous Materials


We investigated a gastrointestinal illness cluster among persons who attended a baseball tournament (>200 teams) during July 2015. We interviewed representatives of 19 teams; illness was reported among only the 9 (47%) teams that stayed at Hotel A (p < .01). We identified 55 primary cases. A case-control study demonstrated that pool exposure at Hotel A was significantly associated with illness (odds ratio: 7.3; 95% confidence interval: 3.6, 15.2). Eight out of nine (89%) stool specimens tested were positive for Cryptosporidium, with C. hominis IfA12G1 subtype identified in two specimens. The environmental health assessment detected a low free available chlorine level, and pool water tested positive for E. coli and total coliforms. A possible diarrheal contamination event, substantial hotel pool use, and use of cyanuric acid might have contributed to this outbreak and magnitude. Aquatic facilities practicing proper operation and maintenance (e.g., following the Centers for Disease Control and Prevention’s Model Aquatic Health Code) can protect the public’s health.

May 2017
May 2017
79.9 | 16-22
Mary-Margaret A. Fill, MD, Centers for Disease Control and Prevention, Tennessee Department of Health, Jennifer Lloyd, MSPH, Shelby County Health Department, Tamal Chakraverty, MPH, MD, CPH, Shelby County Health Department, David Sweat, MPH, Shelby County Health Department
Additional Topics A to Z: Pathogens and Outbreaks