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1. Boil Water Advisories as Risk Communication: Consistency between CDC Guidelines and Local News Media Articles

   https://doi.org/10.1080/10410236.2020.1827540  

   O’Shay, Sydney; Day, Ashleigh M.; Islam, Khairul; McElmurry, Shawn P.; Seeger, Matthew W. (October 2020, Health Communication)

   null (Ed.)

   The Safe Drinking Water Act Public Notification Rule requires that customers of public water systems (PWS) be informed of problems that may pose a risk to public health. Boil water advisories (BWA) are a form of communication intended to mitigate potential health risks. The Centers for Disease Control and Prevention (CDC) developed guidance for BWAs. We examined how local US news media incorporate the CDC’s guidelines when reporting on BWAs. A content analysis of 1040 local news media articles shows these reports did not consistently incorporate CDC guidelines. Overall, 89% of the articles communicated enough information for readers to determine if they were included in the impacted area. Articles that included at least some of the CDC’s instructions for boiling water were likely (p < .001) to include other risk information, such as the functions for which water should be boiled (e.g., drinking, brushing teeth) and that bottled water could be used as an alternative source. However, this information was included in only 47% of the articles evaluated. Results suggest public notifications often do not serve the public need for clear risk communication. 

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2. Tracking the post-disaster evolution of water infrastructure resilience: A study of the 2021 Texas winter storm

   https://doi.org/10.1016/j.scs.2023.104417  

   Tiedmann, Helena R.; Spearing, Lauryn A.; Castellanos, Sergio; Stephens, Keri K.; Sela, Lina; Faust, Kasey M. (January 2023, Sustainable Cities and Society)

   In February 2021, severe winter weather in Texas caused widespread electrical blackouts, water outages, and boil water notices. Water systems faced extensive challenges due to cascading failures across multiple interde- pendent infrastructure systems. Water utilities have since made considerable progress in improving resilience to extreme events, but ongoing challenges remain. Through a qualitative analysis of semi-structured interviews with 20 large water utilities in Texas, this study tracks the evolution of water infrastructure resilience across three phases: the storm and immediate aftermath, the subsequent one-year period, and the “new normal” in the post-disaster environment. We consider five dimensions of resilience—economic, environmental, governance, infrastructure, and social—to identify where solutions have been implemented and where barriers remain. This study contributes to efforts throughout the United States to build more robust water systems by capturing lessons learned from Winter Storm Uri and providing recommendations to improve hazard preparedness, resilience, and public health. 

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3. Urban Heat Islets: Street Segments, Land Surface Temperatures, and Medical Emergencies During Heat Advisories

   https://doi.org/10.2105/AJPH.2020.305636  

   O’Brien, Daniel T.; Gridley, Brian; Trlica, Andrew; Wang, Jonathan A.; Shrivastava, Aatmesh (July 2020, American Journal of Public Health)

   null (Ed.)

   Objectives. To examine the relationships among environmental characteristics, temperature, and health outcomes during heat advisories at the geographic scale of street segments. Methods. We combined multiple data sets from Boston, Massachusetts, including remotely sensed measures of temperature and associated environmental characteristics (e.g., canopy cover), 911 dispatches for medical emergencies, daily weather conditions, and demographic and physical context from the American Community Survey and City of Boston Property Assessments. We used multilevel models to analyze the distribution of land surface temperature and elevated vulnerability during heat advisories across streets and neighborhoods. Results. A substantial proportion of variation in land surface temperature existed between streets within census tracts (38%), explained by canopy, impervious surface, and albedo. Streets with higher land surface temperature had a greater likelihood of medical emergencies during heat advisories relative to the frequency of medical emergencies during non–heat advisory periods. There was no independent effect of the average land surface temperature of the census tract. Conclusions. The relationships among environmental characteristics, temperature, and health outcomes operate at the spatial scale of the street segment, calling for more geographically precise analysis and intervention. 

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4. “WATER AND ALL MY RELATIONS”: REIMAGINING INDIGENOUS WATER JUSTICE FOR SEVEN GENERATIONS

   https://doi.org/10.17730/1938-3525-82.3.274  

   Gagnon, Valoree S. (August 2023, Human Organization)

   The Ojibwe Gichigami (Lake Superior) bioregion is the ancestral and contemporary homeland of the Anishinaabe Ojibwa. Harvesting and consuming fish has sustained people for millennia, but today, toxic risks due to fish contamination contribute to many burdens for both human and more-than-human worlds. For the Ojibwa, nibi gaye nii’kinaaganaa (“water and all my relations”) are the lived experiences of fish-reliant communities and emphasize sustaining good relations with water and relatives. Toxicity disrupts traditional harvest lifeways, violates treaty rights, and problematizes Ojibwa water relations. In this article, I describe diverging values attributed to water and conflicting norms of water quality relations between Ojibwa people and scientific practices of toxicology. Drawn from a study of institutional water decision making, I examine practices associated with water, fish, and risk and how these practices clarify ethics in water policy. The study of toxic substances, albeit invisible in water policy and fish advisories, raises broader issues of Indigenous water justice, particularly for sensitive populations (e.g., developing children, women of childbearing age, and fish-reliant communities). In proposing a broader justice framework for reimagining water lives and livelihoods, I argue for foregrounding Indigenous water justice ethics based on long-term wellbeing, a time period inclusive of seven generations. 

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5. Urban Warming Challenges Verification of Frost Advisories and Freeze Warnings in Madison, Wisconsin

   https://doi.org/10.1175/WAF-D-22-0164.1  

   Williamson, Meirah; Kucharik, Christopher J. (June 2023, Weather and Forecasting)

   Abstract Urban heat islands (UHIs) may increase the likelihood that frost sensitive plants will escape freezing nighttime temperatures in late spring and early fall. Using data from 151 temperature sensors in the Madison, Wisconsin, region during March 2012–October 2016, we found that during time periods when the National Weather Service (NWS) issued freeze warnings (threshold of 0.0°C) or frost advisories (threshold of 2.22°C) were valid, temperatures in Madison’s most densely populated, built-up areas often did not fall below the respective temperature thresholds. Urban locations had a mean minimum temperature of 0.72° and 1.39°C for spring and fall freeze warnings, respectively, compared to −0.52° and −0.53°C for rural locations. On average, 31% of the region’s land area experienced minimum temperatures above the respective temperature thresholds during freeze warnings and frost advisories, and the likelihood of temperatures falling below critical temperature thresholds increased as the distance away from core urban centers increased. The urban–rural temperature differences were greatest in fall compared to spring, and when sensor temperatures did drop below thresholds, the maximum time spent at or below thresholds was highest for rural locations during fall freeze warnings (6.2 h) compared to urban locations (4.8 h). These findings potentially have widely varying implications for the general public and industry. UHIs create localized, positive perturbations to nighttime temperatures that are difficult to account for in forecasts; therefore, freeze warnings and frost advisories may have varying degrees of verification in medium-sized cities like Madison, Wisconsin, that are surrounded by cropland and natural vegetation. Significance StatementThe purpose of this study was to understand whether the urban heat island effect in Madison, Wisconsin, creates localized temperature patterns where county-scale frost advisories and freeze warnings may not verify. Approximately one-third of Madison’s urban core area and most densely populated region experienced temperatures that were consistently above critical low temperature thresholds. This is important because gardening and crop management decisions are responsive to the perceived risk of cold temperatures in spring and fall that can damage or kill plants. These results suggest that urban warming presents forecast challenges to the issuance of frost advisories and freeze warnings, supporting the need for improved numerical weather prediction at higher spatial resolution to account for complex urban meteorology. 

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