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Project runs August 1, 2023 through July 31, 2027; no external grant deadline found as this is an interagency agreement.
PFAS Fate and Remediation in Agricultural Systems: Developing Conservation Assistance for Landowners (Interagency Reimbursable Agreement) is sponsored by USDA Agricultural Research Service (ARS). This is an ongoing research project within USDA ARS focused on understanding the fate and remediation of PFAS in agricultural systems, with the goal of developing conservation assistance for landowners.
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Agricultural Research Service U.S. DEPARTMENT OF AGRICULTURE Water Management and Conservation Research: Maricopa, AZ » U.S. Arid Land Agricultural Research Center » Water Management and Conservation Research » Research Project #445481 PFAS Fate and Remediation in Agricultural Systems: Developing Conservation Assistance for Landowners Water Management and Conservation Research Project Number: 2020-13660-009-029-I Project Type: Interagency Reimbursable Agreement Goal 1: Investigate the absorption, distribution, and depuration of PFAS residues in food animals for which few data exist, and determine the fate of PFAS during Goal 2: Determine the effects of dietary PFAS binding agents on PFAS absorption/tissue accumulation and on PFAS depuration rates.
Goal 3: Examine and compare the removal of PFAS compounds by biochars and an activated carbon typically used in water treatment. Goal 4: Determine the effectiveness of microwave irradiation for the destruction of PFAS compounds on biochars and activated carbon.
Goal 5: Screen a large number of biochars (50-60) from various feed stocks for PFAS sorption from solution; select high sorbers and determine rates of desorption under Goal 6: Utilize the best biochars (maximum sorption, minimum desorption) in greenhouse studies to identify those that maintain soil health, reduce PFAS leaching, and reduce plant PFAS uptake.
Goal 7: Use the optimal biochar in a field setting focusing on PFAS sorption, reduction in plant uptake, and soil health endpoints. Goal 1. Accumulation and depletion of PFAS in edible tissues of farm animals for which few data exist (swine, turkeys, sheep, or goats) will be measured.
Animals will be dosed with PFAS in water and/or feed at levels commensurate with environmental contamination (i.e. 100 parts per trillion or lower) with an emphasis on measuring residues in edible products (milk, meat, eggs, etc.). Carcasses from animals will be shared with collaborators for composting. Residues in edible tissues, composted materials, and simulated leachate will be measured using validated LC-MS/MS methods.
Goal 2. The effects of dietary PFAS-specific sorbents on the accumulation (6-8 weeks) of PFAS residues in broiler chickens will be measured. PFAS will be fortified into feed and water at environmental concentrations and feeds will contain four levels (0, .
5x, 1x, 2x) of sorbent per kg of diet (w/w) where 'x' represents an 4-6 orders of magnitude excess PFAS binding capacity. Modified silica, ion exchange, algal, and biochar based sorbents will be tested. At harvest, blood, liver, and skeletal muscle will be collected for the determination of PFAS residues by liquid chromatography-tandem mass spectrometry.
Goals 3 and 5. Cooperators will introduce biochars (~5 g) into solutions (100 mL) containing known quantities of EPA-regulated PFAS: PFOA, PFOS, PFNA, PFHxS, PFBS and HFPO-DA (GenX). Biochar mixtures will be gently stirred for 48h, followed by filtration.
Solutions will be analyzed for PFAS concentrations, and removal calculated by difference between starting and final concentrations. Goal 4. Biochars having high PFAS sorptive capacities (Goals 3 and 5) will be microwave (MW) digested to destroy sorbed PFAS in cooperating laboratories.
A 2. 45 GHz MW oven equipped with a cyclonic inverter will be used irradiate 5. 0 g biochar samples in a ceramic crucibles.
Power levels and irradiation times will be varied to assess digestive performance and biochar temperature changes. Irradiated biochars will be physically and chemically characterized, rinsed, and the destruction of PFAS assessed by measuring F- in rinse water using ion chromatography. Goal 6.
Cooperators will select 3-6 of the best PFAS sorbing biochars for addition (0, 0. 5, 1, 1. 5% wt:wt) to soil collected from a PFAS contamination site.
PFAS concentrations in leachate collected from soils under controlled conditions, soil health endpoints, and PFAS concentrations in above ground plant materials will be measured. Goal 7. A 2-year field trial using biochar identified under Goal 6 will be conducted by cooperators.
Biochar will be incorporated in the top 6" of soil in a contamination site located in Maine using appropriate replication. Soils will be planted with a cool season grass used in greenhouse studies. Soil health, soil PFAS concentration, and biomass PFAS concentrations will be measured.
Cooperators will use an in vitro method to assess PFAS risk of ingested soil or plant material.
Based on current listing details, eligibility includes: This is an interagency reimbursable agreement, not a direct grant program; external eligibility is not applicable. Applicants should confirm final requirements in the official notice before submission.
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This notice announces the availability of funds and solicits applications from eligible entities to compete for financial assistance through the Targeted Airshed Grant Program. This program will assist local, state, and/or tribal air pollution control agencies to conduct emission reduction activities to reduce air pollution in nonattainment areas that EPA determines are the top five most polluted areas relative to the ozone (O3), annual average fine particulate matter (PM2.5), or 24-hour PM2.5 National Ambient Air Quality Standards (NAAQS). To learn more about eligible entities, see Section III.A. The overall goal of the Targeted Airshed Grant Program is to reduce air pollution in the nation’s areas with the highest levels of ozone and PM2.5 ambient air concentrations listed in the three tables directly below. Area information, including maps and lists of the counties within each nonattainment area, is available at EPA’s Green Book. Funding Opportunity Number: EPA-OAR-OAQPS-21-03. Assistance Listing: 66.956. Funding Instrument: CA,G. Category: ENV. Award Amount: Up to $8M per award.
EPA Region 8 (the Region) is soliciting applications that address the national and regional priority of decreasing the environmental impact of materials with a focus on reducing greenhouse gas emissions (GHGs). This funding opportunity is designed to both decrease materials generated (source reduction) and increase the diversion of materials through reuse, recycling, and other strategies. Funding Opportunity Number: EPA-R8-2021-SMM. Assistance Listing: 66.808. Funding Instrument: CA. Category: ENV. Award Amount: $10K – $25K per award.
The U.S. Environmental Protection Agency (EPA) is soliciting applications to provide training and technical assistance to rural, small, and tribal municipalities, publicly owned wastewater treatment works, and decentralized wastewater treatment systems for the prevention, reduction, and elimination of pollution. Eligible activities include training and technical assistance only. Infrastructure construction projects such as repairing water or sewer lines, adding new equipment, or upgrading, retrofitting, or rehabilitating existing equipment are not eligible for funding under this announcement. Funding Opportunity Number: EPA-OW-OWM-22-02. Assistance Listing: 66.446. Funding Instrument: CA. Category: ENV. Award Amount: Up to $18M per award.