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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 hazard of this artifact is the chemically polluted waters of the Passiac River and its effects on the marine life. Furthermore, it ish from the river are typically eaten by the locals. The main form of precaution exercised to avoid this health hazard would be the fish exchange tents which have been set up for locals to use exchange their catches from the Passaic with farm raised tilapia. 

Vulnerability and resilience in this artifact are defined by the high concentration of child poverty in Essex County. They are measured using the Census from 2000 and 2015 which show how there is a trend in the percentage of children who expereince poverty within the county. Majority of the children living in poverty are currently living in heavilyu concentrated poverty neighborhoods like Newark, Irvington, and the Oranges. Although the affluent town of Milburn is nearby, it is unclear how these children continue to live below the poverty line in Newark even though the towns are only 6 miles apart. 

The hazard in this artifact is in relation to the polluted water system throughout urban New Jersey areas. The Passaic Valley Sewerage Commission and the D.E.P are working together to create new infrastructure upgrades to the local sewer systems. This long term plan will help limit the amount of toxic waste that runs off into the drinking water for surrounding urban communities. 

There are many vulnerabilities listed in this artifact that directly affect the community. To begin with, Bergen, Hudson, and Essex county are listed as the state's worse air quality. It also states that more than four in 10 people experience unhealthy air quality in the community within NJ.  

This artifact states the solutions that local lawmakers have come up with in order to effectively clean up the toxic waste in the Passaic River. There are many sources of resilience here as the E.P.A added to a superfund program worth $1.38 billion to clear the city of chemicals, pesticides, and all other contaminants that deterioate the Passaic River. This plan extends into the Belleville area as well. For three decades the E.P.A has used this Superfund program to clean up the countries' most hazardous waster sites. The efforts to clean up the Passaic are a result of the intesnse cleaning of the Husdon River and Gowanus Canal in Brooklyn.