Visualizing changes to US federal environmental agency websites, 2016-2020.

Websites have become the primary means by which the US federal government communicates about its operations and presents information for public consumption. However, the alteration or removal of critical information from these sites is often entirely legal and done without the public's awareness. Relative to paper records, websites enable governments to shape public understanding in quick, scalable, and permissible ways. During the Trump administration, website changes indicative of climate denial prompted civil society organizations to develop tools for tracking online government information sources. We in the Environmental Data & Governance Initiative (EDGI) illustrate how five data visualization techniques can be used to document and analyze changes to government websites. We examine a large sample of websites of US federal environmental agencies and show that between 2016 and 2020: 1) the use of the term "climate change" decreased by an estimated 38%; 2) access to as much as 20% of the Environmental Protection Agency's website was removed; 3) changes were made more to Cabinet agencies' websites and to highly visible pages. In formulating ways to visualize and assess the alteration of websites, our study lays important groundwork for both systematically tracking changes and holding officials more accountable for their web practices. Our techniques enable researchers and watchdog groups alike to operate at the scale necessary to understand the breadth of impact an administration can have on the online face of government.

Learning in Crisis: Training students to monitor and address irresponsible knowledge construction by U.S. federal agencies under Trump.

Immediately after President Trump's inauguration, U.S. federal science agencies began deleting information about climate change from their websites, triggering alarm among scientists, environmental activists, and journalists about the administration's attempt to suppress information about climate change and promulgate climate denialism. The Environmental Data & Governance Initiative (EDGI) was founded in late 2016 to build a multidisciplinary collaboration of scholars and volunteers who could monitor the Trump administration's dismantling of environmental regulations and science deemed harmful to its industrial and ideological interests. One of EDGI's main initiatives has been training activists and volunteers to monitor federal agency websites to identify how the climate-denialist ideology is affecting public debate and science policy. In this paper, we explain how EDGI's web-monitoring protocols are being incorporated into college curricula. Students are trained how to use the open-source online platforms that EDGI has created, but are also trained in how to analyze changes, determine whether they are significant, and contextualize them for a public audience. In this way, EDGI's work grows out of STS work on "critical making" and "making and doing." We propose that web-monitoring exemplifies an STS approach to responsive and responsible knowledge production that demands a more transparent and trustworthy relationship between the state and the public. EDGI's work shows how STS scholars can establish new modes of engagement with the state, and create spaces where the public can not only define and demand responsible knowledge practices, but also participate in the process of creating STS inspired forms of careful, collective and public knowledge construction.

Embryonic Fundulus heteroclitus responses to sediment extracts from differentially contaminated sites in the Elizabeth River, VA.

Sites along the Elizabeth River are contaminated with polycyclic aromatic hydrocarbons (PAHs) from historical creosote production and other industrial processes. Previous studies have demonstrated that Atlantic killifish collected from sites throughout the Elizabeth River display resistance to the teratogenic effects of PAH-exposure in a manner commensurate with sediment PAH concentrations. The current study characterized various chemical pollutants in sediment and investigated the effects of aqueous sediment extracts from sites along the Elizabeth River to the cardiac development of Atlantic killifish embryos from fish collected from an uncontaminated reference site. Embryonic cardiac deformities were more prevalent after exposure to extracts from sites with high PAH loads. However, activation of cytochrome P4501A, a gene up-regulated by PAH-induction of the aryl hydrocarbon receptor and measured using an in ovo EROD assay, did not consistently increase with PAH concentrations. This work further characterizes sediments in the Elizabeth River, as well as provides insight into the evolutionary pressures at each ER site.

Community interest and feasibility of using a novel smartphone-based formaldehyde exposure detection technology.

OBJECTIVE: This study is the first community engagement phase of a project to develop a residential formaldehyde detection system. The objectives were to conduct a feasibility assessment for device use, and identify factors associated with concerns about environmental exposure and community interest in this device. DESIGN AND SAMPLE: A cross-sectional, internet-based survey employing community-based participatory research principles was utilized. 147 individuals participated from a focused Waycross, Georgia (58.5%) and broader national sample (41.5%). MEASURES: Variables included acceptable cost and number of testing samples, interest in conducting tests, levels of concern over pollutants, health status, housing, and demographics. RESULTS: The majority of participants desired a system with fewer than 10 samples at ≤$15.00 per sample. Statistically significant higher levels of concern over air quality, formaldehyde exposure, and interest in testing formaldehyde were observed for those with overall worse health status and living in the Waycross, Georgia geographic region. Significant differences in formaldehyde testing interest were observed by health status (OR = 0.31, 95% CI = 0.12-0.81 for home testing) and geographic location (OR = 3.16, 95% CI = 1.22-8.14 for home and OR = 4.06, 95% CI = 1.48-11.12 for ambient testing) in multivariate models. CONCLUSIONS: Geographic location and poorer general health status were associated with concerns over and interest in formaldehyde testing.

Biochar and activated carbon act as promising amendments for promoting the microbial debromination of tetrabromobisphenol A.

The increasing occurrence of tetrabromobisphenol A (TBBPA) in the environment is raising questions about its potential environmental health impacts as it has been shown to cause various deleterious effects in humans. The fact that the highest concentrations of TBBPA have been reported in wastewater sludge is concerning as effluent discharge and biosolids land application are likely a route by which TBBPA can be further disbursed to the environment. Our objectives in this study were to evaluate the effect of biochar (BC) and activated carbon (AC) in promoting the biodegradation of TBBPA, and characterize the response of anaerobic sludge microbial communities following amendments. Both carbonaceous amendments were found to promote the reductive debromination of TBBPA. Nearly complete transformation of TBBPA to BPA was observed in the amended reactors ∼20 days earlier than in the control reactors. In particular, the transformation of diBBPA to monoBBPA, which appears to be the rate-limiting step, was accelerated in the presence of either amendment. Overall, microbial taxa responding to the amendments, i.e., 'sensitive responders', represented a small proportion of the community (i.e., 7.2%), and responded positively. However, although both amendments had a similar effect on TBBPA degradation, the taxonomic profile of the sensitive responders differed greatly from one amendment to the other. BC had a taxonomically broader and slightly more pronounced effect than AC. This work suggests that BC and AC show great potential to promote the biodegradation of TBBPA in anaerobic sludge, and their integration into wastewater treatment processes may be helpful for removing TBBPA and possibly other emerging hydrophobic contaminants.

Mercury isotopes link mercury in San Francisco Bay forage fish to surface sediments.

Identification of sources of biologically accessible Hg is necessary to fully evaluate Hg exposure in aquatic ecosystems. This study assesses the relationship between Hg in forage fish and Hg in surface sediments throughout San Francisco Bay (SF Bay) and evaluates processes influencing the incorporation of Hg into the aquatic food web. We measured the Hg stable isotope compositions of two nearshore fish species and compared them with previously reported analyses of colocated intertidal surface sediments. Fish δ(202)Hg values (mass-dependent fractionation) demonstrated a distinct spatial gradient within SF Bay that ranged from 0.60‰ in the south to -0.25‰ in the north. Fish δ(202)Hg values were consistently higher than sediment δ(202)Hg values by 0.73‰ (±0.16‰, 1SD). Fish and sediment δ(202)Hg values in SF Bay proper were well correlated (r(2) = 0.83), suggesting that sediment is a primary source of Hg to the nearshore aquatic food web. Fish Δ(199)Hg values (mass-independent fractionation) ranged from 0.46‰ to 1.55‰, did not correlate with sediment values, and yielded a Δ(199)Hg/Δ(201)Hg ratio of 1.26 (±0.01, 1SD; r(2) = 0.99). This mass-independent fractionation is consistent with photodegradation of MeHg to varying degrees at each site prior to incorporation into the food web.