Analyze

Studie provides visual representations of lead concentration in Santa Ana cross matching it with vulnerability risk.

“Also of note when interpreting our results is that this study did not take into consideration the ingestion of heavy metals through the dietary route. Had we considered this additional exposure pathway, our calculated chronic daily intake levels of heavy metals would have been greater, resulting in higher estimated risk (particularly for metals such as Pb, As, and Cd which have been widely documented in various foods)” (Marsi et al. 2021)

“Both cancer and non-cancer risk at the Census tract level exhibited positive correlations with indicators of social as well as physiological vulnerability” (Marsi et al. 2021)

Exposure to heavy metals has been associated with adverse health effects and disproportionately impacts communities of a lower socio-economic status.  

This study used a community-based participatory research approach to collect and analyze a large number of randomly sampled soil measurements to yield a high spatially resolved understanding of the distribution of heavy metals in the Santa Ana soil, in an effort to exposure misclassification. This study looks into average metal  concentrations at the Census tract level and by land use type, which helps map potential sources of heavy metals in the soil and better understand the association between socioeconomic status and soil contamination (Marsi et al. 2021). 

In 2018, soil samples of eight heavy metals including lead (Pb), arsenic (As), manganese (Mn), chromium (Cr), nickel (Ni), copper (Cu), cadmium (Cd), and zinc (Zn) were collected across Santa Ana. These were analyzed at a high resolution using XRF analysis. Then, metal concentrations were mapped out and American Community Survey data was used to assess the metals throughout Census tracts in terms of social and economic variables. Risk assessment was conducted to evaluate carcinogenic risk. The results of the concentrations of soil metals were categorized according to land-use type and socioeconomic factors. “Census tracts where the median household income was under $50 000 had 90%, 92.9%, 56.6%, and 54.3% higher Pb, Zn, Cd, and As concentrations compared to high-income counterparts” (Marsi et al. 2021). All Census tracts in Santa were above hazard inder >1, which implies non-carcinogenic effects, and almost all Census tracts showed a cancer risk above 104, which implies greater than acceptable risk. Risk was found to be driven by childhood exposure.

It was concluded that the issue of elevated soil contamination relates back to environmental justice due to overlap between contaminated areas and neighborhoods of lower socioeconomic status. Marsi et al. (2021) found there needs to be more community-driven recommendations for policies and other actions to address disproportionate solid contamination and prevent adverse health outcomes.      

Published in May 2021, amid the coronavirus pandemic where in-person community workshops and meetings turned into weekly virtual meetings. 

-> Authors:

Shahir Masri: Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine; air pollution scientist.

Alana M. W. LeBrón: Department of Health, Society, and Behavior, University of California, Irvine; Assistant Professor, Chicano/Latino Studies; Interests: structural racism and health, health of Latina/o communities, community-based participatory research.

Michael D. Logue: Department of Chicano/Latino Studies, University of California, Irvine

Enrique Valencia: Orange County Environmental Justice, Santa Ana

Abel Ruiz: Jóvenes Cultivando Cambios, Santa Ana; CRECE Urban Farming Cooperative member

Abigail Reyes: Community Resilience, University of California, Irvine

Jun Wu: Department of Environmental and Occupational Health, Program in Public Health, University of California, Irvine

"Far from being anti-science and anti-education, BP has successfully embedded itself at the heart of elite UK science and education policy and practice networks – in particular, networks focused on development and delivery of STEM (Science, Technology, Engineering and Mathematics) education. Rather than limiting itself to the narrow promotion of pro-petroleum rhetoric, BP has long seen its interests as being best served by the general promotion of pro-business practices and values throughout UK public education. Petro-pedagogy, in the case of BP at least, is best understood as a core component of a more extensive corporate education reform network that, for the past decade, has focused on promoting a neoliberal model of STEM education in schools" p. 475

"This brings us back to the argument of Eaton and Day (2019) that began this article: to tackle the crisis of climate change, we ‘need to dismantle the corporate power of the fossil fuel industries and their petro-pedagogy’ (15). Doing this, however, will require a far different model of STEM education: one that can help students ‘understand how manipulative politics, economic power and myth making PR are subverting public democratic will,’ and encourage ‘young people to apprentice as critical scientific policy analysts,’ and ‘create innovative counter-narratives to the old dysfunctional stories of intensifying carbon dependence’ (Elshof 2011, 15)." p.486

As outlined in this brief article by the U.S. Energy Information Administration, energy consumption by New York City alone has dropped significantly more than the surrounding areas. On a prima-facie observation, one could say the foregoing alleviates stress on the existing energy infrastructures. However, deeper analyses should consider the repercussions that demanding less energy may have on production, supply, and distribution, as well as transitions between larger and smaller electric microgrids. Given energy infrastructures in the United States are already vulnerable, can it be really said the pandemic alleviates stress on the existing energy infrastructures when everybody is connected to the internet and is generally using more technology at home?