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United States Environmental Protection Agency; adsorption; environmental protection; human health; hydrophobicity; models; porosity; solvents; zeolites
Abstract:
... 1-Bromopropane is a solvent used in various industrial and commercial applications. United States Environmental Protection Agency recently concluded that 1-bromopropane posed unreasonable risks to human health in several conditions of use. In this work, the adsorption of 1-bromopropane vapors in zeolites was investigated using molecular simulations. First, a united-atom model of 1-bromopropane was ...
United States Environmental Protection Agency; affordability; compliance; computer security; lead; water utilities
Abstract:
... In 2022, the US Environmental Protection Agency (EPA) is engaging in several regulatory activities that will affect the regulatory compliance of US water systems. Being familiar with the changes in regulations will help US water systems prepare for any changes they should make in their own operations. Areas being addressed this year by EPA include, among others, infrastructure, emerging contaminan ...
United States Environmental Protection Agency; analytical chemistry; chemoinformatics; ecotoxicology; instrumentation; mass spectrometry
Abstract:
... Unknown chemical releases constitute a large portion of the rapid response situations to which the US Environmental Protection Agency is called on to respond. Workflows used to address unknown chemical releases currently involve screening for a large array of known compounds using many different targeted methods. When matches are not found, expert analytical chemistry knowledge is used to propose ...
United States Environmental Protection Agency; air; algorithms; amyotrophic lateral sclerosis; chromium; data collection; databases; etiology; gender; health services; inventories; methylene chloride; nickel; pollution; styrene
Abstract:
... Most amyotrophic lateral sclerosis (ALS) cases are sporadic (∼90%) and environmental exposures are implicated in their etiology. Large industrial facilities are permitted the airborne release of certain chemicals with hazardous properties and report the amounts to the US Environmental Protection Agency (EPA) as part of its Toxics Release Inventory (TRI) monitoring program. The objective of this pr ...
... Ongoing human perturbations to the global inorganic carbon cycle can cause various changes in the pH and alkalinity of aquatic systems. Here seasonal and inter-annual trends in these variables were investigated in the five Laurentian Great Lakes using data from the U.S. EPA GLENDA database. These observations, along with temperature, were also used to predict the partial pressure of carbon dioxide ...
United States Environmental Protection Agency; aerodynamics; carcinogens; coal; dust; environmental assessment; gasoline; humans; liquid petroleum gas; municipal solid waste; particle size; power plants; risk; toxicity; India
Abstract:
... The primary concern of PM₂.₅ (particle size of an aerodynamic diameter 2.5 micrometers or less) is its adverse health effects. As not all PM₂.₅ particles are equally toxic, a uniform PM₂.₅ mass control across the emitting sources may not provide the maximum health benefits. A new approach that apportions PM₂.₅ constituents, based on their toxicity and further realigns them into the sources, is dev ...
... Non-aflatoxigenic Aspergillus flavus strains are used as a biocontrol system on maize fields to decrease the aflatoxin biosynthesis of aflatoxigenic A. flavus strains. A. flavus strain AF36 was the first commercially available biocontrol strain and is authorized for use on maize fields by the US Environmental Protection Agency, e.g., in Texas and Arizona. A droplet digital PCR (ddPCR) assay was de ...
United States Environmental Protection Agency; electric energy consumption; electricity; energy policy; paper
Abstract:
... In the US a complete transition to electric vehicles (EVs) would increase demand for carbon-free electricity by around 30% if the future fleet has the same average size, weight and horsepower as current EVs. However, these dimensions for today's EVs are substantially lower than for conventional vehicles, so as EVs replace them, EV's average size, weight and horsepower are likely to increase substa ...
Apis mellifera; Helianthus annuus; United States Environmental Protection Agency; beans; ecotoxicology; honey bees; imidacloprid; indigenous species; models; passion fruits; pesticide application; pesticide law; research; risk; risk assessment; tomatoes; Brazil
Abstract:
... All across the world, different countries use Ecological risk assessments (ERA) of pesticides to pollinators as a regulatory tool to understand the safety of pesticide use in agriculture. However, pesticide application is still recognized as one of the main stress factors causing a decline in the global population of bees. In all ERA procedures, the effects of pesticides on the honey bee species A ...
Daniel Dawson; Hunter Fisher; Abigail E. Noble; Qingyu Meng; Anne Cooper Doherty; Yuko Sakano; Daniel Vallero; Rogelio Tornero-Velez; Elaine A. Cohen Hubal
United States Environmental Protection Agency; byproducts; environmental protection; human health; humans; industrial wastes; people; risk; technology; water pollution
Abstract:
... 1,4-Dioxane is a persistent and mobile organic chemical that has been found by the United States Environmental Protection Agency (USEPA) to be an unreasonable risk to human health in some occupational contexts. 1,4-Dioxane is released into the environment as industrial waste and occurs in some personal-care products as an unintended byproduct. However, limited exposure assessments have been conduc ...
United States Environmental Protection Agency; agricultural soils; average daily intake; bioavailability; geochemistry; gold; risk; traditional technology; Niger; Nigeria
Abstract:
... The occurrence of mercury (Hg) in the environment globally has been linked largely to its use for gold processing. In this research, ore samples, agricultural soil and mine wastes were taken within the vicinity of an artisanal gold mine and processing sites in Niger state, a north-central part of Nigeria to determine Hg contamination in the environment and estimate the potential hazard to health. ...
United States Environmental Protection Agency; absorption; aquatic ecosystems; biocenosis; detection limit; environmental health; environmental protection; guidelines; heavy metals; humans; pollution load; principal component analysis; risk; rivers; sediment contamination; sediments; India
Abstract:
... The Godavari is the largest river of peninsular India and receives a significant quantity of pollutants from diverse sources, including many industries, urban developments and agricultural fields. Such pollution is more prominent in the upper stretch of the river. This work aimed to assess the water and sediment contaminations of River Godavari for the presence of trace metals Cd, Cr, Cu, Mn, Pb a ...
United States Environmental Protection Agency; absorbed dose; average daily intake; dust; fish consumption; food safety; neurodevelopment; research; soil; Taiwan
Abstract:
... Mercury (Hg) is a well-known toxicant that can affect children's neurodevelopment. This study attempted to evaluate the internal dose of Hg in hair and fingernails and external Hg exposure from dietary consumption in 283 pairs of mothers and their children aged under 6 years in Taiwan. Mean Hg levels in hair and fingernail samples were 1.07 ± 0.67 and 0.42 ± 0.34 μg/g for mothers, and 1.11 ± 1.22 ...
United States Environmental Protection Agency; air pollution; environmental health; issues and policy; minorities (people); nitrogen dioxide; population density; population size; public schools; statistical analysis; surveys; traffic; Texas
Abstract:
... Distributive environmental justice research on children's exposure to vehicular pollution is underdeveloped and few empirical studies have been conducted in the US. This study seeks to address this gap by examining if socially disadvantaged children are disproportionately located in public school districts burdened by higher vehicular pollution in Texas—the second largest US state based on populat ...
Oreochromis mossambicus; United States Environmental Protection Agency; ammonium; bioaccumulation; brackish water; depuration; drugs; half life; humans; liver; muscles; propionic acid; salinity; North Carolina
Abstract:
... Contaminants of emerging concern (CEC) are a broad suite of chemicals commonly found in the environment, aquatic organisms and even drinking water. They include pharmaceuticals, personal care products, industrial chemicals and compounds added to consumer products. The CEC ammonium 2,3,3,3-tetrafluoro-2-heptafluoropropoxy propanoic acid, which is more commonly known as generic name GenX, is a repla ...
United States Environmental Protection Agency; biomass; combustion; dermal exposure; ecological value; naphthalene; phenanthrenes; pollution; research; risk; risk assessment; sediments; soil; China
Abstract:
... The resource, environment, and ecological value of drinking reservoirs have received widespread concerns due to the pollution of persistent organic pollutants such as polycyclic aromatic hydrocarbons (PAHs). Therefore, we comprehensively studied the occurrence, source, distribution, and risk assessment of representative PAHs in Fengshuba Reservoir (FSBR) (large drinking reservoir, China). The tota ...
DNA damage; United States Environmental Protection Agency; adults; air; air pollution; biomarkers; blood serum; breathing; carcinogenicity; gluconeogenesis; glycolysis; hazard identification; histopathology; lung neoplasms; males; metabolites; metabolomics; neoplasm progression; phosphates; risk; urine; China
Abstract:
... Outdoor air pollution has been classified as carcinogenic to humans (Group 1) for lung cancer, but the underlying mechanism and key toxic components remain incompletely understood. Since DNA damage and metabolite alterations are associated with cancer progression, exploring potential mechanisms linking air pollution and cancer might be meaningful. In this study, a real-time ambient air exposure sy ...
United States Environmental Protection Agency; acute toxicity; aquatic environment; aquatic organisms; biodiversity; chemistry; data collection; ecotoxicology; taxonomy; water quality
Abstract:
... The US Environmental Protection Agency (USEPA) is responsible for the development of water quality criteria, regulatory standards that protect aquatic organisms from harmful chemical exposure. Although these criteria are intended to be broadly protective of aquatic life, the data used to derive criteria do not necessarily reflect the actual diversity of natural communities nor are they available f ...
United States Environmental Protection Agency; benzene; desalination; energy use and consumption; ethylbenzene; fuel oils; natural gas; pollutants; power generation; power plants; thermal energy; toluene; Kuwait
Abstract:
... Based on 2016 fuel consumption and utilizing US-EPA AP-42 emission factors, emissions from the burning fuel facilities for energy production in Kuwait were calculated. The total emissions for criteria pollutants were 1.89E+01, 6.97E+02, 1.05E+02, 8.05E+00, 8.54E+00, and 1.60E−03 Gg of CO, SO₂, NOx, PM₁₀, PM₂.₅, and Pb, respectively. For benzene, ethylbenzene, toluene, xylenes, and BTEX, they were ...
Cryptosporidium; Giardia; United States Environmental Protection Agency; diarrhea; feces; hazard identification; humans; land use planning; microbiological risk assessment; pollution; risk; watersheds; Latin America
Abstract:
... Human and animal feces are one of the main pollutants in drinking water systems (DWS). Both sources of fecal pollution are related to environmental conditions, such as poor land use management and little micro-basin protection. Cryptosporidium sp. and Giardia sp. are zoonotic protozoan water and foodborne transmitted parasitic pathogens and a frequent cause of diarrhea in children in low- and midd ...
... Wild-caught seafood contains significant amounts of mercury. Investigating the mercury accumulation levels in wild-caught seafood and analyzing its migration and transformation are of great value for assessing the health risks of mercury intake and for the tracking of mercury sources. We determined the concentrations and stable mercury isotopic compositions (δ²⁰²Hg, Δ¹⁹⁹Hg, Δ²⁰⁰Hg, and Δ²⁰¹Hg) of ...
United States Environmental Protection Agency; adults; coal; ecology; health hazards; human health; human population; pollution load; power generation; risk; soil
Abstract:
... Coal thermal power plants are the dominant factor in producing various hazardous elements in surrounding surface soil, resulting in a significant human health hazard. In the current study, the seasonal (pre- and post-monsoon) concentration of As, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Ni, Pb, and Zn in surface soil around coal power production unit was analyzed using inductively coupled plasma-mass spect ...
Brassica rapa subsp. chinensis; Mesorhizobium; United States Environmental Protection Agency; biomarkers; chickens; environmental management; health effects assessments; lettuce; microbial communities; nitrogen; nutrient use efficiency; plant growth; poultry manure; risk; vegetable growing; xenobiotics
Abstract:
... In bioponics, although chicken manure is an efficient substrate for vegetable production and nitrogen recovery, it is often contaminated with high Cu and Zn levels, which could potentially cause bioaccumulation in plants and pose health risks. The objectives of this study were to assess nitrogen recovery in lettuce- and pak choi-based bioponics with Cu (50–150 mg/kg) and Zn (200–600 mg/kg) supplem ...
Pimephales promelas; United States Environmental Protection Agency; adulthood; carbaryl; mortality; reproductive performance; risk; toxicity
Abstract:
... The US Environmental Protection Agency conducts ecological risk assessments with a battery of fish toxicity tests that include acute, early life stage, and reproduction tests. While endpoints in these tests (survival, growth and reproduction) are conceptually related, because they are measured in separate exposures, the quantitative relationships between them are difficult to determine and largely ...
United States Environmental Protection Agency; adsorbents; adsorption; carboxylation; carboxylic acids; mercury; oxygen; pH; zeta potential
Abstract:
... Water supplies contaminated with heavy metals are a worldwide concern. MXenes have properties that make them attractive for the removal of metal ions from water. This work presents a simple one-step method of Ti₃C₂Tₓ carboxylation that involves the use of a chelating agent with a linear structure, providing strong carboxylic acid groups with high mobility. The carboxylation decreases the zeta-pote ...
Renee Jordan-Ward; Frank A. von Hippel; Guomao Zheng; Amina Salamova; Danielle Dillon; Jesse Gologergen; Tiffany Immingan; Elliott Dominguez; Pamela Miller; David Carpenter; John H. Postlethwait; Samuel Byrne; C. Loren Buck
Russia; Salvelinus malma; United States Environmental Protection Agency; carbon; environment; fish; fish consumption; humans; mercury; monitoring; muscles; nitrogen; pollution; polychlorinated biphenyls; radar; remediation; risk; stable isotopes; toxicity; Alaska; Arctic region
Abstract:
... Environmental pollution causes adverse health effects in many organisms and contributes to health disparities for Arctic communities that depend on subsistence foods, including the Yupik residents of Sivuqaq (St. Lawrence Island), Alaska. Sivuqaq's proximity to Russia made it a strategic location for U.S. military defense sites during the Cold War. Two radar surveillance stations were installed on ...
... Polyoxyethylene tallow amine (POE-T) is a member of the polyoxyethylene alkylamine (POEA) class of nonionic surfactants and is a component of some glyphosate-based formulations. The presence of POE-T improves foliar uptake of glyphosate in weeds, thereby reducing the amount of glyphosate needed for weed control. To further characterize the environmental fate of POE-T, aerobic soil degradation, hyd ...
United States Environmental Protection Agency; carcinogenicity; health effects assessments; heavy metals; human health; pollution; research; risk; rivers; sediments; summer; winter
Abstract:
... A detailed study was conducted in order to evaluate the effects of heavy metal pollution in the sediments in terms of environmental, ecological, and human health. Sediment samples were collected from 5 different points in two seasons, namely summer (August 2017) and winter (December 2017), to determine the distribution of heavy metals, potential pollutants, and toxic and ecological risks in the ri ...
... Populations exposed to bioaerosols over time in wastewater treatment plants (WWTPs) will be infected. Then, the reverse quantitative microbial risk assessment (QMRA) provides a quantitative framework for the estimation of acceptable exposure time to protect people from excessive exposure and then manage their health risk. In this study, the acceptable exposure time for staffs and visiting research ...
Internet; Latinos; United States Environmental Protection Agency; air pollution; air quality; household income; models; pollutants; research; surveys; California
Abstract:
... Non-governmental air quality monitoring networks include low-cost, networked air pollution sensors hosted at homes and schools that display real-time pollutant concentration estimates on publicly accessible websites. Such networks can empower people to take health-protective actions, but their unplanned organization may produce an uneven spatial distribution of sensors. Barriers to acquiring senso ...
United States Environmental Protection Agency; X-radiation; arsenic; barium; calcium; cassava; corn; diet recall; fluorescence; gold; lead; nutritional adequacy; pollution; potassium; principal component analysis; public health; research; rice; risk; selenium; surveys; tomatoes; toxicity; yams; zinc; Ghana
Abstract:
... There has been a concern of metal contamination from the mining areas which could expose the population to toxic metal through consumption of food products in the regions. Therefore, the study was conducted to analyze 18 elements using X-ray fluorescence analyzer and to assess for metal exposure through dietary intakes. Dietary recall survey instrument was used to collect consumption, demographic, ...
Singapore; United States Environmental Protection Agency; air pollution; case studies; climate change; furniture; green roofs; greenhouse gases; heat island; irrigation; pest control; rain; risk; sample size; stakeholders; tropics; Malaysia
Abstract:
... The implementation of a green roof is best suited for urban areas, as it provides an array of environmental benefits toward mitigating and adapting to climate change, including reduced flood risk, greenhouse gas emissions, urban heat island effects, and air pollution. However, green roof research and maintenance awareness in Malaysia are comparatively scarce, largely due to the absence of local tr ...
United States Environmental Protection Agency; basins; carcinogenicity; fluorides; geospatial technology; groundwater; health effects assessments; humans; industrial effluents; ion exchange; nitrates; pollution; risk; sustainable development; water quality; India
Abstract:
... The primary intend of this research is to determine the standard drinking water quality build upon on the Pollution Index of Groundwater (PIG) and health risk index. For this, fifty groundwater samples were chosen and determined for chief cations & anions in the Southwestern part of Cuddapah basin (SW). Maximum samples are under the allowable level of W.H.O standards except Fluoride and nitrate co ...
Procambarus clarkii; United States Environmental Protection Agency; arsenic; atomic absorption spectrometry; bioaccumulation; cadmium; chromium; crayfish; environmental protection; fluorescence; health effects assessments; hepatopancreas; lakes; lead; mercury; muscles; pollution; research; risk; spectrometers; China
Abstract:
... Contamination with heavy metals in wild red swamp crayfish (Procambarus clarkii) from 7 different geographical areas in six provinces of China (Hubei, Hunan, Jiangxi, Anhui, Jiangsu, and Shandong) was evaluated. Concentrations of chromium (Cr), arsenic (As), lead (Pb), cadmium (Cd), and mercury (Hg) in the abdominal muscle, gonad, and hepatopancreas were determined by inductively coupled plasma ma ...
United States Environmental Protection Agency; atrazine; carcinogenicity; environmental protection; health effects assessments; oral exposure; research; risk; Iran
Abstract:
... Atrazine-contaminated soils can pose a carcinogenic and non-carcinogenic health risk through different routes for exposed people. This study aimed to assess the health risk of exposure to atrazine-contaminated soils through direct ingestion and dermal contact in farmlands nearby Shiraz. Atrazine concentration was measured in 22 selected sites using grid sampling. The carcinogenic and non-cancer ri ...
United States Environmental Protection Agency; air pollution; benzene; carcinogenicity; furans; health effects assessments; heptane; human health; phthalates; research; risk; volatile organic compounds; Mediterranean region
Abstract:
... This study evaluates the carcinogenic and the non-carcinogenic health risks related to non-methane volatile organic compounds (NMVOCs) and elements, dioxins, furans, dioxin-like polychlorobiphenyls, phthalates and polycyclic aromatic hydrocarbons in PM₂.₅ samples collected during a one-year field campaign in two urban industrial areas in the East Mediterranean region. The health risk was assessed ...
National Aeronautics and Space Administration; United States Environmental Protection Agency; air quality; diurnal variation; lidar; ozone; particulates; pollution; radar; river valleys; smoke; troposphere; wildfires; wind; Canada; Lake Michigan; Maryland; Mid-Atlantic region; Ohio River
Abstract:
... The integration of observations and models can improve air quality forecasts (in particular ozone (O₃) and particulate matter (PM)) for extreme events (e.g., wildfires). We present our work on the Canadian wildfire event on 6–12 June 2015 that impacted the air quality in the Mid-Atlantic region in the U.S. We use the Weather Research and Forecasting model coupled with Chemistry package (WRF-Chem), ...
Pseudomonas; United States Environmental Protection Agency; bioremediation; environmental technology; heavy metals; oils; soil; toxicity; waste disposal sites
Abstract:
... The status, content and availability of heavy metals and hydrocarbons are highly affected by weathering processes – particularly – in areas characterized by harsh conditions. Their concomitant removal by highly adapted strains of Bacillus and Pseudomonas to weathered oil components was investigated. Indeed, weathered soil collected from Dukhan dumpsite was shown to contain 14 heavy metals with con ...
Tatsuo Shubo; Adriana Gonçalves Maranhão; Fernando César Ferreira; Sérgio de Silva e Mouta Júnior; Lorena da Graça de Pedrosa Macena; Cláudia do Rosário Vaz Morgado; Ahmed Warish; Jatinder P. S. Sidhu; Marize Pereira Miagostovich
Escherichia coli; Mastadenovirus; Polyomaviridae; Rotavirus A; United States Environmental Protection Agency; genomics; humans; microbiological quality; public health; rain; stormwater; urban areas; water reuse; Brazil
Abstract:
... Stormwater harvesting and reuse in the urban environment is emerging as an alternative water source, despite human pathogens in the stormwater may represent a hazard to public health. This study presents the results of 1-year monitoring to evaluate the quality of stormwater obtained in a high-income neighborhood in Rio de Janeiro for a set of microbiological parameters as total coliforms, Escheric ...
United States Environmental Protection Agency; breathing; chloroform; human health; ingestion; research; risk; Egypt
Abstract:
... The present study aims to assess the probable lifetime cancer and non-cancer risks of exposure to the trihalomethanes in Egypt's drinking water through ingestion, dermal contact, and inhalation. A total of 1667 drinking water samples were collected from twenty-three Egyptian governorates over a three-years period. The concentrations of total trihalomethanes ranged between 29.07 and 86.01 μg/L and ...
United States Environmental Protection Agency; breast milk; combustion; electronic circuits; electronic wastes; human health; pollution; pyrolysis; soil; toxicity; urine; China; Ghana; India; Pakistan
Abstract:
... Electronic waste (e-waste) is one of the fastest-growing solid wastes and has become an urgent issue due to the potential adverse consequences of exposure to emitted toxic pollutants, especially for these occupational exposed workers and local residents. In this review, the environmental occurrences, emission characteristics, sources, and possible adverse effects of polycyclic aromatic hydrocarbon ...
United States Environmental Protection Agency; adsorption; aquifers; bedrock; boron; calcite; corrosion; dissolved oxygen; ferric oxide; geochemistry; granite; isotopes; landfills; lithium; manganese; pH; solubility; tap water; uranium; zinc; Massachusetts
Abstract:
... Lead (Pb) occurrence and sources and aqueous geochemistry were assessed in private wellhead and tap water at a targeted area of concern for possible exceedances and at a control area in the same geologic formation, and in wells at a nearby landfill in south-central Massachusetts (MA). Total Pb concentrations were below the U.S. Environmental Protection Agency (USEPA) Action Level of 15 μg/L in all ...
DNA damage; DNA repair; United States Environmental Protection Agency; byproducts; carcinogenicity; carcinogens; cytotoxicity; environment; genotoxicity; glutamate-cysteine ligase; glutathione; hepatotoxicity; homeostasis; lipid peroxidation; liver; maximum contaminant level; mice; oxidation; oxidative stress; risk; stabilizers; stress response; subchronic exposure; Canada
Abstract:
... 1,4-Dioxane (DX) is a synthetic chemical used as a stabilizer for industrial solvents. Recent occurrence data show widespread and significant contamination of drinking water with DX in the US. DX is classified by the International Agency for Research on Cancer as a group 2B carcinogen with the primary target organ being the liver in animal studies. Despite the exposure and cancer risk, US EPA has ...
Bacillus subtilis; Cryptosporidium parvum; Giardia; United States Environmental Protection Agency; bacteriophages; chemistry; data collection; disinfectants; disinfection; mammals; oocysts; ozone; pathogens; prediction; research; systematic review; wastewater treatment; water; water reuse
Abstract:
... Viruses, Giardia cysts, and Cryptosporidium parvum oocysts are all major causes of waterborne diseases that can be uniquely challenging in terms of inactivation/removal during water and wastewater treatment and water reuse. Ozone is a strong disinfectant that has been both studied and utilized in water treatment for more than a century. Despite the wealth of data examining ozone disinfection, dire ...
United States Environmental Protection Agency; circular economy; environmental assessment; incinerators; inorganic phosphorus; land application; leaves; organic wastes; sand; sewage sludge; sewage treatment; sludge ash; toxicity; wastewater treatment; wood chips
Abstract:
... Smouldering treatment of sewage sludge – and recapturing phosphorus – provides important steps towards a circular economy. This study reveals that bulking sludge with sand or another organic waste, e.g., woodchips, created a material that was readily converted to ash by self-sustained smouldering. Simultaneous phosphorus and regulated potentially toxic element releases from ash were evaluated usin ...
Sinapis alba; United States Environmental Protection Agency; biochar; calcite; green chemistry; mass spectrometry; methylation; organic carbon; phytotoxicity; pyrolysis; pyrolysis gas chromatography; risk; temperature
Abstract:
... Determination of the total yield of polycyclic aromatic hydrocarbons (PAHs) and their derivatives in a Tetra Pak® biochar was the leading target of this study. It was also evaluated the toxicity of Tetra Pak® biochars originated from pyrolysis performed at different temperatures. The relationship between the pyrolysis temperature and the yield of PAHs contained in Tetra Pak® biochars was also inve ...
United States Environmental Protection Agency; estuaries; land management; models; nitrogen; phosphorus; pollutants; runoff; total maximum daily load; watersheds; Chesapeake Bay
Abstract:
... In 2010 the U.S. Environmental Protection Agency established the Total Maximum Daily Load (TMDL) which is a “pollution diet” that aims to reduce the amount of nitrogen and phosphorus entering the Chesapeake Bay, the largest estuary in the United States, by 25 and 24% percent, respectively. To achieve this goal the TMDL requires the implementation of Best Management Practices (BMPs), which are acce ...
Marcelino Antonio Zúñiga-Estrada; Liliana Lizárraga-Mendiola; Carlos Alfredo Bigurra-Alzati; Sergio Esteban Aldana-Alonso; Jorge Santiago Ramírez-Núñez; Gabriela A. Vázquez-Rodríguez
United States Environmental Protection Agency; land; models; pavements; pollution; rain; runoff; storms; subwatersheds; water conservation; water quality
Abstract:
... The U.S. Environmental Protection Agency stormwater management model was applied to a semi-arid urban micro watershed. The sub-catchment’s current features were modeled as scenario A, while the insertion of a set of LID technologies (rain barrels, bioretention cells, permeable pavement, and infiltration trenches) was represented as scenario B. A third scenario (C), considering only the most feasib ...
United States Environmental Protection Agency; atomic absorption spectrometry; cadmium; chromium; heavy metals; human health; ingestion; monsoon season; nickel; pollution; rain; research; risk; risk assessment; river water; rivers; water quality; zinc; India
Abstract:
... This study was carried out to evaluate the heavy metals (Lead (Pb), Nickel (Ni), Chromium (Cr), Copper (Cu), Cadmium (Cd) and Zinc (Zn)) pollution in the Noyyal River of South India by collecting 130 river water samples (65 each in pre- and post-monsoon). The heavy metals were measured using Atomic Absorption Spectrophotometer (AAS). The data were used to calculate the associated health hazards fo ...
Molly Darlington; Jordan D. Reinders; Amit Sethi; Albert L. Lu; Partha Ramaseshadri; Joshua R. Fischer; Chad J. Boeckman; Jay S. Petrick; Jason M. Roper; Kenneth E. Narva; Ana M. Vélez
Diabrotica virgifera virgifera; RNA interference; United States Environmental Protection Agency; Zea mays; corn; death; durability; insects; plant-incorporated protectants; Corn Belt region
Abstract:
... The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, is considered one of the most economically important pests of maize (Zea mays L.) in the United States (U.S.) Corn Belt with costs of management and yield losses exceeding USD ~1–2 billion annually. WCR management has proven challenging given the ability of this insect to evolve resistance to multiple management strategies in ...