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“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. 

“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. 

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).

This was published by the International Atomic Energy Agency and is published as a part of the Radiological Assessment Reports Series.

Since the report was published by the IAEA, which is an intergovernmental forum for scientific and technical cooperation of nuclear technology worldwide, it can be considered a government report. 

The Chernobyl nuclear power plant explosion in 1986 led to a ten day reactor fire that resulted in a large and unknown amount of radiation spilling into the surrounding areas in Ukraine. This caused the contamination of the environments and those around the reactor. Hundreds of thousands of people had to evacuate and to this day it remains to be an issue. Due to this controversy that still surrounds this disaster, the IAEA, FAO, UNDP, UNEP, OCHA, UNSCEAR and WHO created the Chernobyl Forum. They generate "authoritative consensual statements" on the environmental consequences due to the radiation exposure. Ultimately they and this event in Chernobyl are what called for this report. 

This is a 180 page document that has hundreds of components in terms of what information, as well as measures and advice that the report includes and recommends. The report contains information on the radioactive release amounts and deposition in the urban, environmental, agricultural and aquatic areas surrounding the plant. Recommendations for future monitoring and research are also provided. Countermeasures are also widely discussed and ways in which people can combat and help reverse effects of the radiation and evacuations. The effects the disaster had on plants and animals is also analyzed and supported by facts and figures. The amount of human exposure and recommendations are also discussed. Future trends are analyzed as well as very detailed reports of the weather during the time of the incident, how that effected things, how specific types of animals were effected, the differences between external and internal doses.  A break down of the impact on air, shelter, surface water, groundwater etc. is also provided. Needless to say, pretty much any single detail that could possibly be known about the condition during the event and after the event were researched and documented in this report. 

Data for this report was collected from other sources and forms of documentation as early as the day of the event. Information and details such as population sizes, weather conditions that day, human population distribution and more were all information collected from that day of the event. Other forms of data collected, ranging over the time of the event occurring to the publication time, include factors such as the quality of the air, water, animals and living conditions surrounding the plant. Human radiation levels and infection were also gathered, radiation levels of crops and much, much more were all statistics and data collected over roughly twenty year timespan that this report covers. This is actually one of the main driving points of the report, listed in the title "twenty years of experience." It compiles 20 years of research and findings into one large report.

The report heavily discuss the effect that the radiation had on the people and environment around the plant. Not only is there a deep scientific analysis of the effects that the radiation had on local areas surrounding the plant, but conclusions as well as recommendations for future research as well as recommendations for countermeasures are also suggested and discussed. Health concerns of those exposed to radiation as well as amounts they were exposed to is discussed and measures those can take to counteract and protect themselves in the future.

The report shows that there are obvious measures of fallout and exposure due to the disaster. The numbers show a clear effect of the disaster on the environment, animals and humans surrounding the area. Due to this, this puts technical professionals in a position in where they must take obvious precautions, and proceed with this data ethically and attempt to combat it and increase the preservation of the environment as well as areas and people surrounding the area of disaster. Professionals now must with this data and these findings apply their degrees and background to help improve the conditions ad fallout. They now have a duty in their respective fields to work with these findings and use them to better the situation to the best of their abilities.