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Actions by the U.S. Environmental Protection Agency (U.S. EPA) and other federal agencies have significantly reduced the use of lead in automotive gasoline, paint, lead-soldered food containers, and new water system components over the past 40 years. Through the collective effort...

Recently, the International Programme on Chemical Safety (IPCS) developed a unified probabilistic framework for deriving reference values and a software tool, Approximate Probabilistic Analysis (APROBA), to help implement this framework. The distributions of multiple sources of u...

The U.S. EPA sponsored a project to collect and catalog information from wastewater treatment wetlands into a computer database. EPA has also written a user friendly, stand-alone, menu-driven computer program to allow anyone with DOS 3.3 or higher to access the information in the...

Despite significant overlaps in mission, the fields of environmental health sciences and aging biology are just beginning to intersect. It is increasingly clear that genetics alone does not predict an individual’s neurological aging and sensitivity to disease. Accordingly, aging ...

The Centers for Disease Control and Prevention (CDC), the Environmental Protection Agency (EPA), the US Food and Drug Administration (FDA), the US Department of Housing and Urban Development (HUD), and other federal agencies are committed to primary and secondary prevention of le...

The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Concl...

Pollution prevention (P2) options to reduce styrene emissions, such as new materials, and application equipment, are commercially available to the operators of open molding processes. However, information is lacking on the emissions reduction that these options can achieve. To me...

This is a downloadable (zip file) interactive user interface (UI), which we developed using R code (R Shiny), to quantify the relationships between water quality and landscape variables.  For this UI we utilized total phosphorus (TP) concentrations measurements from lakes in 17 n...

Water, weather, and climate affect everyone. However, their impacts on various communities can be very different based on who has access to essential services and environmental knowledge. Structural discrimination, including racism and other forms of privileging and exclusion, af...

Plastics are widely used for their affordability and versatility across various applications. However, the end-of-life (EoL) management stage can often lead to releasing hazardous chemical additives and degradation products into the environment. The increasing demand for plastics...

Pharmaceutical contamination of water sources, particularly antibiotics, poses a critical public health and environmental challenge. Despite the frequent detection of meropenem, a last-resort antibiotic, in wastewater and its potential to promote antibiotic resistance, research o...

Traditionally, the effects of anthropogenic disturbance on biological assemblages are elucidated by comparing an assemblage observed at a site to one that represents a minimally disturbed state. Unfortunately, defining a minimally disturbed state is extremely challenging because ...

Natural and anthropogenic sources of lead (Pb) can adversely impact water and sediment quality within large watersheds and the ecosystems they support. This study examined the sources and distribution of Pb within the San Juan watershed located in southwestern Colorado and the fo...

Traditional Ecological Knowledge (TEK) is the accumulated knowledge and understanding of American Indian and Native Alaskan Villages’ homelands and can help confirm, support, or further define scientific research for the benefit of the environment and human health. Cumulati...

Gaseous ammonia (NH3) is an important precursor for secondary aerosol formation and contributes to reactive nitrogen deposition. NH3 dry deposition is poorly quantified due to the complex bidirectional nature of NH3 atmosphere-surface exchange and lack of high time-reso...

This study, performed under the umbrella of the Task Force on Hemispheric Transport of Air Pollution (TF-HTAP), responds to the need of the global and regional atmospheric modelling community of having a mosaic emission inventory of air pollutants that conforms to specific requir...

Understanding particulate emission factors in grassland fires is critical for improving air quality assessments and refining emissions inventories. This study explores the dynamic and heterogeneous nature of fire processes and their influence on particulate emissions. Traditional...

Pollution can have lasting effects beyond the exposure period, potentially impacting multiple generations. Polybrominated diphenyl ether (PBDE) flame retardants are widespread, including in oceans, yet their multigenerational impacts remain poorly understood. We investigated whet...

Comparing and combining reports from different publication is of interest to many when conducting metaanalyses. However, challenges can arise with reports using transformations of the exposure data. A recent publication, Linakis et al. (BMC Med Res Methodol 24:6, 2024), compared ...

The Policy Assessment (PA) is a component of the national ambient air quality standards (NAAQS) review that evaluates the policy implications of the current scientific evidence, air quality information, and exposure and risk analyses for the current standards and potential altern...

The Policy Assessment (PA) is a component of the national ambient air quality standards (NAAQS) review that evaluates the policy implications of the current scientific evidence, air quality information, and exposure and risk analyses for the current standards and potential altern...

Many greenhouse gas (GHG) emission reduction measures achieve simultaneous reductions in air pollutants. Human-Earth system models can estimate such emission changes in the energy system but using them in chemistry-transport models (CTMs) to study their air quality impacts involv...

This review highlights the formation pathways for intrinsic disinfection byproducts (DBPs) formed in drinking water systems from free chlorine and chloramines. The term “intrinsic” is intended to convey that these DBPs are formed by reactions of the disinfectant with ...

In air quality modeling, chemical mechanisms are used to represent atmospheric chemical reactions. The Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM) predicts multiple air quality endpoints, including ozone (O3), particulate matter (PM), chemical component...

Past studies have leveraged distinct observed weekly patterns in emissions of two ozone precursors, volatile organic compounds (VOCs) and nitrogen oxides (NOX = NO + NO2), to better understand ozone chemistry. These studies evaluated day-of-week (DOW) patterns in ozone concentrat...