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The San Juan Bay Estuary (SJBE) is an interconnected system of streams, bays, lagoons, and canals located in a highly urbanized area in San Juan, Puerto Rico. Due to the rapid rate of urbanization, some communities across the SJBE have limited access to or are impacted by failure...

The U.S. Harmful Algal Bloom and Hypoxia Research Control Act calls for robust approaches to forecasting cyanobacterial harmful algal blooms (cyanoHABs). Accurate forecasting technology could save local communities healthcare costs through the early detection of cyanoHABs and the...

The ability to identify human sewage in environmental, municipal storm system drains, and other waste flows is important to protect public health and natural water resources. &nbsp;A recent study reports the complete genome sequence of &Phi;B124-14, a bacteriophage capable of inf...

Microplastics (MPs) in aquatic environments accumulate a biofilm known as the plastisphere, a microbial community unique from that of the surrounding water and from biofilms that form on natural substrates. The plastisphere is known to accumulate pathogens and bacteria with antib...

Storm sewer system outfall discharges can be a source of human sewage potentially harboring clinically relevant antibiotic resistance (AR) bacteria and their genes. &nbsp;These drainage networks primarily collect and discharge untreated stormwater from rain events (&lsquo;wet&rsq...

Background: The U.S. Federal Government has supported the generation of extensive amounts of nanomaterials and related nano Environmental Health and Safety (nanoEHS) data, there is a need to make these data available to stakeholders. With recent efforts, a need for improved inter...

Ductile iron and copper coupons were aged 137&ndash;189 days and 2 days, respectively, with 2 mg Cl2&middot;L&ndash;1 monochloramine under four water chemistries (pH 7 or 9 and 0 or 3 mg&middot;L&ndash;1 orthophosphate). Subsequently, microelectrode profiles of monochloramine con...

Eutrophication of inland lakes poses various societal and ecological threats, making water quality monitoring crucial. Satellites provide a comprehensive and cost-effective supplement to traditional in situ sampling. The Sentinel-2 MultiSpectral Instrument (S2 MSI) offers unique ...

Field-level exercises with the purpose to assess remediation following the deliberate release of a highly toxic chemical in an indoor environment can be conducted using low(er) toxicity simulants if they are closely linked to the behavior of the toxic chemical itself. Experimenta...

Communities across the United States and particularly in the Midwest continue to grapple with the complications associated with aging infrastructure. This includes the presence of lead (Pb)-bearing plumbing components such as lead service lines (LSLs), downstream galvanized iron ...

Aims: This study aimed to provide operationally relevant SARS-CoV-2 surface disinfection efficacy information. Methods and Results: Disinfectants were evaluated against SARS-CoV-2 on material coupons and were tested using Spray (no-touch with contact time) and Spray & Wipe (wipe...

Landfill gas (LFG) extraction wellhead data were compared to understand the range of observations due to unique conditions at five elevated temperature landfills (ETLFs) in the US. Correlations of CH4 and CO2 show distinct compositional indicators for 1. typical operation, 2. sub...

Recent advancements in DNA techniques, metabarcoding, and bioinformatics could help expand the use of benthic diatoms in monitoring and assessment programs by providing relatively quick and increasingly cost-effective ways to quantify diatom diversity in environmental samples. Ho...

The International Union of Pure and Applied Chemistry (IUPAC) has initiated a community project through the WorldFAIR initiative to define a common protocol for programmatic exchange of chemical representations. Representing chemical substances in the form of distinct chemical st...

Chloraminated drinking water systems commonly implement a temporary free chlorine conversion (FCC) to control or minimize nitrification in the distribution system (DS), but unintended water quality changes may occur during the FCC, including increased disinfection byproducts (DBP...

Urban areas are built environments containing substantial amounts of impervious surfaces (e.g., streets, sidewalks, roof tops). These areas often include elaborately engineered drainage networks designed to collect, transport, and discharge untreated stormwater into local surface...

Climate impacts increasingly unfold in interlinked systems of people, nature, and infrastructure. The cascading consequences are revealing sometimes surprising connections across sectors and regions, and prospects for climate responses also depend on complex, difficult-to-underst...

Wild pigs are an invasive species found globally that pose significant economic impact and a serious risk to local ecosystems, agriculture, and public health. Fecal contamination of water is one of these public health concerns as wild pigs have been shown to carry pathogenic ente...

Uranium, a naturally occurring element used in military and industrial applications, accumulates in the skeletal system of animals and humans. Evidence from animal and in-vitro studies demonstrates that uranium exposure is associated with alterations in normal bone functions. The...

EPA&rsquo;s Report on the Environment (ROE) is a comprehensive source of scientific indicators that describe the trends in the nation&rsquo;s environmental and human health condition. The indicators help to answer important questions about five mission-driven themes&mdash;air, wa...

&nbsp; Residential lead (Pb) exposure is of critical concern to families globally as Pb promotes severe neurological effects in children, especially those less than 5 years old, and no blood lead level is deemed safe by the US Center for Disease Control. House dust and soils ar...

Fertilizer-intensive agriculture leads to emissions of reactive nitrogen (Nr), posing threats to climate via nitrous oxide (N2O) and to air quality and human health via nitric oxide (NO) and ammonia (NH3) that form ozone and particulate matter (PM) downwind. Adding nitrification ...

To present to the PTF Lead (Pb) SubCommitttee regarding EPA/ORD's Lead Service Line Identification technical assistance effort.

Numerous qPCR-based methods are available to estimate the concentration of fecal pollution sources in surface waters. However, qPCR fecal source identification data sets often include a high proportion of non-detections (reactions failing to attain a prespecified minimal signal i...

The relative role of natural and anthropogenic drivers on freshwater biodiversity across different aquatic ecosystem types is not well understood. The U.S. Environmental Protection Agency&rsquo;s National Aquatic Surveys (NARS) offers a unique opportunity to compare lentic and lo...