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Assessing the PM2.5 impact of biomass combustion in megacity Dhaka, Bangladesh - PubMed (nih.gov)

This article is about crop burning in Dhaka, Bangladesh and attempts to figure out if there is more or less harmful PM2.5 particulate air pollution caused by either fossil fuels or biomass, and during which season is one or the other higher in the air pollution it produces. During monsoon season, fossil fuels lead in the most PM2.5 releases at 44.3%. When it is not monsoon season and is the winter season, the percentages are way higher for PM2.5 air particulate releases at 41.4% for the remainder of the year. Across the globe, there are now people stepping up to uncover the true and real environmental and health impacts this harmful particulate byproduct causes in different parts of the world and with differring weather conditions than what we see in North Carolina. 

https://www.researchgate.net/publication/351209404_PM25_Emissions_from_…;

This study is set in South/Southeast Asia and uncovering that, when trying to count the percentages of PM2.5 put off during biomass, the true amount of emissions were being gravely undercalculated. Specifically rice straw burning becuase the amount burned varied so much because of different harvest and burning practices that it just wasn't taken into consideration. What this study does is go bottom up using these strategies: "subnational spatial database of rice-harvested area, region-specific fuel-loading factors, region, and burning-practice-specific emission and combustion factors, including literature-derived estimates of straw and stubble burned"(Lasko et al. 2021, 1). 

The most common air pollutants are called criteria pollutants and are regulated by the Clean Air Act and the EPA. These pollutants are: particles, ozone, nitrogen oxides, sulfer dioxide, carbon monoxide, and lead. The EPA have sections under the CAA that help regulate factories and air pollution in the environment. For example section 108 requires the EPA to identify the pollutants that are criteria pollutants, listed above, and determine if where they are coming from and if they "endander public health or welfare". Under section 109 the EPA had to set standards across the board for air pulltion in regard to human health and to the environemtn sperately (Christopher D. Ahlers 2016, 51-52).  There are many more sections that go into detail about what the CAA can do and what the EPA members are required to do as well. 

The main methods that the authors appear to use are reported data from disasters that have happened around the globe, including numbers and types of infections, displacement and crowding data, and knowledge of the disaster incidents examined

The main point of the article is to report a conflict of opinions between the NRC and the Disaster Accountability Project on the safety of the communities surrounding the Indian Point Nuclear Power Plant. The NRC and the company running the plant, Entergy, state that those communities within a 10 mile radius are required to have emergency evacuation plans in place should a nuclear emergency occur; those outside this radius, however, are not at as large of risk. The nonprofit, however, cites the NRC's report on the Fukushima disaster, where it recommended the US citizens within 50 miles of the plant should evacuate the area, and suggests that communities within a 50 mile radius of Indian Point have specific nuclear emergency plans at hand and prepared for use. Entergy says that the radius "provides a robust safety margin", and the NRC replies to the Disaster Accountability Project's statement by saying that the incident at Fukushima is not comparable to any nuclear power cite in the US, due to the size and number of reactors in the Fukushima plant.

"The risk for commuicable disease transmission after disasters is associated primarily with the size and characteristics of the population displaced, specifically the proximity of safe water adn functioning latrines, the nutritional status of the displaced population, the level of immunuty to vaccine-preventable diseases..., and the access to healthcare services"

"...natural disasters (regardless of type) that do not result in population displacement are rarely associated with outbreaks"

"When death is directly due to the natural disaster, human remains do not pose a rise for outbreaks"

The author contacted both the NRC and the nonprofit Disaster Accountability Project for statements and information on the safety of the plant and if emergency plans were in place. The NRC gave statements and information on their discussions with the Disaster Accountability Project, and the nonprofit described their process of sending freedom-of-information requests to 20 jurisdictions in NY, NJ, and CT located up to 50 miles from Indian Point, in order to determine if they had emergency plans related to the power plant and what they might be

1: Crowding is shown to be common in displaced populations, and local overpopulation/crowding often facillitates the transmittion of disease

2: Natural disasters that do not cause a displacement of a population are rarely associated with disease outbreaks

3: There is little or no evidence that dead bodies, as some believe, pose a epidemic risk for a population of survivors after a disaster has struck