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How was research for this document conducted? Who participated?

margauxf

“Since asthma surveillance data were not available at the census tract level for most of Louisiana, we estimated asthma burden using the inpatient discharge data available through LDH.”  (4)

“Case counts are not provided for CTs with a 2018 population of less than 800 to safeguard privacy.” (4)

“To minimize the need for suppression, inpatient discharge data was aggregated for the three most recent years available (2017–2019) and average annual crude rates were calculated for cases where asthma (ICD-10 code J45) was the primary diagnosis, as well as where asthma was any diagnosis.” (4)

“Spearman’s Rank Correlation was utilized to analyze the correlation between various social and environmental vulnerability factors, COVID-19 incidence, and the measures of asthma risk by CT.” (4)

 

“This was performed by first ranking the values in each dataset using RANK.AVG function in MS Excel 2016, followed by applying the PEARSON function to compare two datasets. Significance was set at alpha less than 0.05 (α < 0.05), with degrees of freedom (df) equal to two less than the total number of data points represented in both datasets” (4)

The research team works for the Section of Environmental Epidemiology and Toxicology, Office of Public Health, Louisiana Department of Health in Baton Rouge. Team members included Arundhati Bakshi; Shanon Soileau; Collete Stewart; Kate Friedman; Collete Maser; Alexis Williams; Kathleen Aubin; and Alicia Van Doren. 

How are the links between environmental conditions and health articulated?

margauxf

“Currently, much of the environmental focus of the pandemic remains on PM2.5 levels; however, we noted that higher levels of ozone was consistently associated with higher incidence rates of COVID-19, and it was the only environmental factor that appeared to have an additive effect over SVI on COVID-19 incidence (Fig 1).” (11)

“Specifically, our data show a moderately strong positive correlation between SVI due to minority status/language barrier and three health data variables: asthma hospitalization; estimated asthma prevalence; and cumulative COVID-19 incidence at 3 months (Table 2). Interestingly, SVI measures were either negatively or not significantly correlated COVID-19 incidence at the 9-and 12-month time points, indicating that social vulnerability factors may have played a greater role in COVID-19 spread early in the pandemic, but may have been of diminishing importance as the pandemic wore on (Fig 1 and Table 2).” (9)

Bakshi A, Van Doren A, Maser C, Aubin K, Stewart C, Soileau S, et al. (2022) Identifying Louisiana communities at the crossroads of environmental and social vulnerability, COVID-19, and asthma. PLoS ONE 17(2): e0264336. https:// doi.org/10.1371/journal.pone.0264336. 

What forms of evidence and expertise are used in the document?

margauxf

This document uses data resources from the Center for Disease Control/Agency for Toxic Substances and Disease Registry (CDC/ATSDR), the Environmental Protection Agency (EPA), and the Louisiana Department of Health (LDH).

These data resources include the Social Vulnerability Index (2018 - CDC/ATSDR), the NATA Respiratory Hazard Index (EPA 2014), PM2.5level (average annual concentration in ug/m3, EPA 2016), ozone level (summer seasonal average of daily maximum 8-hour concentration in air in parts per billion, EPA 2016), indoor mold concerns reported to IEQES program (average annual number of calls, LDH 2017-2019), cumulative COVID-19 incidence rate at 3-, 6-, 9- and 12-month increments (LDH March 2020 - March 2021), asthma hospitalization (average annual crude rate, where asthma was a primary diagnosis among hospitalization cases, LDH 2017-2019), and estimated asthma prevalence (average annual crude rate, where asthma was any diagnosis among hospitalization cases, LDH 2017-2019).

Pollution Reporter Workflows

Carly.Rospert
Annotation of

The Pollution Reporter app allows users to: (1) make a pollution report of something they see or sense, (2) search different polluters in Chemical Valley and access data on their emissions, (3) look up health symptoms and see what chemical pollutants might be linked to these symptoms, and (4) learn about specific chemical pollutants.

The workflows are meant to provide impacted individuals access to important information that can help them link health harms to specific polluters and chemicals from the nearby Chemical Valley. The reporting workflow also allows individuals to create reports, and thus their own data, on things they see or sense that might not be captured by industry monitoring systems. In this way, workflows both streamline access to important and relevant information while also enabling the capturing of experiential data.

Pollution Reporter Data

Carly.Rospert
Annotation of

The Pollution Reporter app includes data on: (1) polluters in Chemical Valley and a list of its chemical emissions, (2) health symptoms and the chemicals that are associated with that symptom, and (3) chemical pollutants that are emitted in Chemical Valley and the associated health impacts and polluters. Users are encouraged to search within these three categories and see the interconnectedness between polluters, chemical pollutants, and health symptoms. This helps users attach responsibility for health harms to chemicals and the corporations that make them. Users are also encouraged to submit their own data through a pollution report of something they see or sense. 

The Pollution Reporter App translates and connects government, industry-reported, and peer reviewed sources of data into accessible information about the known health effects of pollutants. The creators of the app recognized the limitations to government data in that it is (1) created by Industry, (2) disconnected from the health harms that pollution causes, (3) hard to get, (4) inaccurate, tending to underreport harms, (5) out-dated, (6) and usually organized one chemical at a time, not accounting for cumulative exposure of multiple chemicals. 

Participation in Pollution Reporter

Carly.Rospert
Annotation of

The key participation that the Pollution Reporter app supports is the ability for a user to report a pollution event, spill, or leak to the Ontario Ministry of Environment, making it easier for community members to report problems to the Spill Action Centre. The app assists in making the report, which is then sent through the users own email, and allows users to share on social media or keep a record of their reports.

This  reporting workflow is one of the main features of the app (one of four) and is located in the bottom navigation bar as the report icon (next to the polluters, chemicals, and health symptoms icons). 

Seismic St. Louis

Emily Sekine

I'm interested in better understanding the ongoing geological processes that shape St. Louis and the Mississippi Valley region. So far, I've been looking into the history of seismicity in the region, focusing on the fascinating but little known history of the New Madrid earthquakes of 1811 and 1812 -- the most devastating earthquakes to have hit the US east of the Rockies. I've also been exploring how St. Louis and surrounding areas are dealing with the possibility of another earthquake occurring in the future. According to one article I read, one of the biggest uncertainties is what would happen to the heavily engineered Mississippi River in the case of another major tremblor. The shaking could break the levees, flooding wide areas along the river and creating cascading effects. The flow of the river might also reverse completely, as occurred during the New Madrid earthquakes.

On these possibilities and the lack of scientific consensus surrounding intraplate seismicity in this zone, see this article in The Atlantic.

On current efforts to create earthquake hazard maps in St. Louis, see this overview on the US Geological Survey site.

For a deeper dive into the history of the New Madrid earthquakes, see this book by historian of science Conevery Bolton Valencius. 

St. Louis Anthropocene: displacement & replacement

JJP

A brief essay about St. Louis' notorious eminent domain history--

--along with 2 recent St. Louis Post-Dispatch articles about "urban renewal" projects that are scheduled to reoccupy the Mill Flats area, which hosted the most notorious episode of displacement of African-American communities: the Chouteau Greenway project (will it serve or displace low-income St. Louisans?); and SLU's Mill Creek Flats high-rise project, which certainly will, and whose name seems to me an especially tone-deaf if gutsy move...

https://humanities.wustl.edu/features/Margaret-Garb-St-Louis-Eminent-Domain

https://www.stltoday.com/business/local/steelcote-developer-plans-more-apartments-brewery-space-in-million-midtown/article_811eaf96-76e1-5c20-a870-1e79abd3f06e.html

https://www.stltoday.com/business/local/chouteau-greenway-project-aims-to-knit-st-louis-neighborhoods-together/article_55fea4e6-6829-5c80-9168-313305b4e3bb.html