Near-field dust exposure from cotton field tilling and harvesting.

abstract：:On-site septic systems require appropriate soil characteristics to provide effective wastewater treatment. The objective of this study was to evaluate siting practices and treatment efficacy of on-site septic systems within the Cannonsville Reservoir watershed (115900 ha) in the state of New York. Using digital soil s...

journal_title：Journal of environmental quality

authors： Day L

更新日期：2004-11-01 00:00:00

abstract：:The objectives of this research were to evaluate nitrate N (NO³-N) leaching and turf response to nitrogen rate (NR) and irrigation regime (IR) in 'Floratam' St. Augustinegrass ( [Walt.] Kuntze.) and 'Empire' zoysiagrass ( Steud). The research was conducted in Citra, FL, from 2005 through 2007. Nitrogen (N) was applied...

journal_title：Journal of environmental quality

authors： Trenholm LE,Unruh JB,Sartain JB

更新日期：2012-05-01 00:00:00

abstract：:Seventeen different wastewater sludges were characterized using both chemical and organic matter fractionation methods (water extraction, Van Soest method, and acid hydrolysis) and 6-mo incubation studies to assess their decomposition in soil. Simple correlation and multiple factor analysis (MFA) were then performed t...

journal_title：Journal of environmental quality

authors： Parnaudeau V,Nicolardot B,Pagès J

更新日期：2004-09-01 00:00:00

abstract：:Because organic sorption in soil may never reach equilibrium, a thin-disc flow nonequilibrium method may be helpful in understanding herbicide-soil interactions. This research was conducted to (i) determine the influence of incubation time on imazaquin [2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)...

journal_title：Journal of environmental quality

authors： Smith MC,Shaw DR,Massey JH,Boyette M,Kingery W

更新日期：2004-03-01 00:00:00

abstract：:Phosphorus (P) runoff from manure can lead to eutrophication of surface water and algae growth. This study evaluates the impacts of alternative P reduction practices on dairy farm net returns and on potential P runoff. The P control practices include dairy herd nutrient management, crop nutrient management, and runoff...

journal_title：Journal of environmental quality

authors： Bosch DJ,Wolfe ML,Knowlton KF

更新日期：2006-04-26 00:00:00

abstract：:Two separate laboratory experiment series, surface runoff and steady-state seepage, were performed to determine if dust suppressant products can be applied to soils with an expected minimal to no negative impact on water quality. The experiments were designed to mimic arid field conditions and used two soils (clayey a...

journal_title：Journal of environmental quality

authors： Beighley RE,He Y,Valdes JR

更新日期：2009-02-06 00:00:00

abstract：:Potent estrogenic hormones are consistently detected in the environment at low concentration, yet these chemicals are strongly sorbed to soil and are labile. The objective of this research was to improve the understanding of the processes of sorption, mobility, and transformation for estrogens in natural soils, and th...

journal_title：Journal of environmental quality

authors： Casey FX,Simunek J,Lee J,Larsen GL,Hakk H

更新日期：2005-07-05 00:00:00

abstract：:Chloride contamination of rivers due to nonpoint sources is increasing throughout developed temperate regions due to road salt application in winter. We developed a river-network model of chloride loading to watersheds to estimate road salt application rates and investigated the meteorological factors that control riv...

journal_title：Journal of environmental quality

authors： Zuidema S,Wollheim WM,Mineau MM,Green MB,Stewart RJ

更新日期：2018-07-01 00:00:00

abstract：:Biochar has been heralded as an amendment to revitalize degraded soils, improve soil carbon sequestration, increase agronomic productivity, and enter into future carbon trading markets. However, scientific and economic technicalties may limit the ability of biochar to consistently deliver on these expectations. Past r...

journal_title：Journal of environmental quality

authors： Spokas KA,Cantrell KB,Novak JM,Archer DW,Ippolito JA,Collins HP,Boateng AA,Lima IM,Lamb MC,McAloon AJ,Lentz RD,Nichols KA

更新日期：2012-07-01 00:00:00

abstract：:Metal contaminants in soils can persist for millennia, causing lasting negative impacts on local ecosystems. Long-term contaminant bioavailability is related to soil pH and to the strength and stability of solid-phase associations. We combined physical density separation with synchrotron-based microspectroscopy to red...

journal_title：Journal of environmental quality

authors： Rosenfeld CE,Chaney RL,Tappero RV,Martínez CE

更新日期：2017-03-01 00:00:00

abstract：:The immobilization of Pb in contaminated soils as pyromorphite [Pb(5)(PO(4))(3)Cl, OH, F] through the addition of various phosphate amendments has gained much attention in the remediation community. However, it is difficult to fully determine the speciation and amount of soil Pb converted to pyromorphite by previously...

journal_title：Journal of environmental quality

authors： Scheckel KG,Ryan JA

更新日期：2004-07-01 00:00:00

abstract：:Reactions of heavy metals with soil are important in determining metal fates in the environment. Sorption characteristics of two heavy metals, Cd and Pb, in three tropical soils (Mollisol, Oxisol, and Ultisol) from Puerto Rico were assessed at varying metal concentrations (0 to 1.2 mM) and pH values (approximately 2 t...

journal_title：Journal of environmental quality

authors： Appel C,Ma L

更新日期：2002-03-01 00:00:00

abstract：:Cadmium (Cd) is a nonessential element that occurs at above-background concentrations in many New Zealand (NZ) soils. Most of this Cd is due to the historical application of single superphosphate that was made from Nauru phosphate rock containing between 400 and 600 mg Cd kg P. Pasture Cd uptake exacerbates the entry ...

journal_title：Journal of environmental quality

authors： Reiser R,Simmler M,Portmann D,Clucas L,Schulin R,Robinson B

更新日期：2014-05-01 00:00:00

abstract：:This study examined the effects of agricultural runoff on the vegetation structure of Franklin Bog, a priority conservation area located in a rapidly developing region of northwestern Vermont. Forested and agricultural runoff from the mixed land use watershed created differential vegetation patterns in the wetland, in...

journal_title：Journal of environmental quality

authors： Gustafson S,Wang D

更新日期：2002-01-01 00:00:00

abstract：:Understanding temporal and spatial distributions of naturally occurring total organic carbon (TOC) in sediments is critical because TOC is an important feature of surface water quality. This study investigated temporal and spatial distributions of sediment TOC and its relationships to sediment contaminants in the Ceda...

journal_title：Journal of environmental quality

authors： Ouyang Y,Zhang JE,Ou LT

更新日期：2006-01-03 00:00:00

abstract：:The Abbotsford-Sumas Aquifer is a shallow, predominantly unconfined aquifer that spans regions in southwestern British Columbia, Canada and northwestern Washington, USA. The aquifer is prone to nitrate contamination because of extensive regional agricultural practices. A 22-month ground water nitrate assessment was pe...

journal_title：Journal of environmental quality

authors： Mitchell RJ,Babcock RS,Gelinas S,Nanus L,Stasney DE

更新日期：2003-05-01 00:00:00

abstract：:Canada's National Agri-Environmental Standards Initiative sought to develop an environmental benchmark for low-level waterborne pathogen occurrence in agricultural watersheds. A field study collected 902 water samples from 27 sites in four intensive agricultural watersheds across Canada from 2005 to 2007. Four of the ...

journal_title：Journal of environmental quality

authors： Edge TA,El-Shaarawi A,Gannon V,Jokinen C,Kent R,Khan IU,Koning W,Lapen D,Miller J,Neumann N,Phillips R,Robertson W,Schreier H,Scott A,Shtepani I,Topp E,Wilkes G,van Bochove E

更新日期：2012-01-01 00:00:00

abstract：:High ground-level ozone continues to be an important human, animal, and plant health impediment in the United States and especially in California's San Joaquin Valley (SJV). According to California state and regional air quality agencies, dairies are one of the major sources of volatile organic compounds (VOCs) in the...

journal_title：Journal of environmental quality

authors： Malkina IL,Kumar A,Green PG,Mitloehner FM

更新日期：2011-01-01 00:00:00

abstract：:Compared with open (treeless) pasture systems, silvopastoral agroforestry systems that integrate trees into pasture production systems are likely to enhance soil carbon (C) sequestration in deeper soil layers. To test this hypothesis, total soil C contents at six soil depths (0-5, 5-15, 15-30, 30-50, 50-75, and 75-125...

journal_title：Journal of environmental quality

authors： Haile SG,Nair PK,Nair VD

更新日期：2008-08-08 00:00:00

abstract：:Mobility of dissolved organic matter (DOM) strongly affects the export of nitrogen (N) and phosphorus (P) from soils to surface waters. To study the sorption and mobility of dissolved organic C and P (DOC, DOP) in soil, the pH-dependent sorption of DOM to samples from Ap, EB, and Bt horizons from a Danish agricultural...

journal_title：Journal of environmental quality

authors： Gjettermann B,Styczen M,Hansen S,Borggaard OK,Hansen HC

更新日期：2007-04-05 00:00:00

abstract：:Accretion of organic matter in wetlands provides long-term storage for nutrients and other contaminants. Water-table fluctuations and resulting alternate flooded and drained conditions may substantially alter the stability of stored materials including phosphorus (P). To study the effects of hydrologic fluctuation on ...

journal_title：Journal of environmental quality

authors： Pant HK,Reddy KR

更新日期：2001-03-01 00:00:00

abstract：:Calcium superphosphate and apple ( Mill.) waste can be used for controlling N loss and improving compost quality during composting, whereas integrated addition of the two additives on composting process remains unexplored. Therefore, this study was conducted to investigate the effects of combined use of calcium superp...

journal_title：Journal of environmental quality

authors： Jiang J,Kang K,Zhang C,Yan G,Lv J,Li Y

更新日期：2019-09-01 00:00:00

abstract：:Agricultural ecosystems are of special interest for monitoring the potential for antibiotic resistance to spread through the environment and contribute to human exposure. Molecular methods, which target DNA, RNA, and other molecular components of bacterial cells, present certain advantages for characterizing and quant...

journal_title：Journal of environmental quality

authors： Luby E,Ibekwe AM,Zilles J,Pruden A

更新日期：2016-03-01 00:00:00

abstract：:Phosphorus dissolution often increases as soils become more reduced, but the mechanisms are not fully understood. The objectives of this research were to determine rates and mechanisms of P dissolution during microbial reduction of a surface soil from the North Carolina Coastal Plain. Duplicate suspensions of silt + c...

journal_title：Journal of environmental quality

authors： Hutchison KJ,Hesterberg D

更新日期：2004-09-01 00:00:00

abstract：:Determining the survival of zoonotic pathogens in livestock manure and runoff is critical for understanding the environmental and public health risks associated with these wastes. The occurrence and persistence of the bacterial pathogens Escherichia coli O157:H7 and Campylobacter spp. in a passive beef cattle feedlot ...

journal_title：Journal of environmental quality

authors： Berry ED,Woodbury BL,Nienaber JA,Eigenberg RA,Thurston JA,Wells JE

更新日期：2007-10-24 00:00:00

abstract：:Although many studies have measured denitrification in stream sediments, few have utilized these data with local water column and sediment measurements to develop a predictive model for NO uptake. In this study, sediment denitrification was measured from cores in five streams under various land uses in south-central M...

journal_title：Journal of environmental quality

authors： Guentzel KS,Hondzo M,Badgley BD,Finlay JC,Sadowsky MJ,Kozarek JL

更新日期：2014-05-01 00:00:00

abstract：:Fall application of anhydrous ammonia in Manitoba is common but its impact on nitrous oxide (NO) emissions is not well known. A 2-yr study compared application before freeze-up in late fall to spring pre-plant application of anhydrous ammonia on nitrous oxide (NO) emissions from a clay soil in the Red River Valley, Ma...

journal_title：Journal of environmental quality

authors： Tenuta M,Gao X,Flaten DN,Amiro BD

更新日期：2016-07-01 00:00:00

abstract：:Aqueous degradation rates, which include hydrolysis and epimerization, for chlortetracycline (CTC), oxytetracycline (OTC), tetracycline (TET), lincomycin (LNC), sulfachlorpyridazine (SCP), sulfadimethoxine (SDM), sulfathiazole (STZ), trimethoprim (TRM), and tylosin A (TYL) were studied as a function of ionic strength ...

journal_title：Journal of environmental quality

authors： Loftin KA,Adams CD,Meyer MT,Surampalli R

更新日期：2008-02-11 00:00:00

abstract：:Eco-environmental quality assessment (EQA) is an intricate and challenging task that must take into account numerous natural, economic, political, and social factors, which are subject to multiple conflicting criteria. In this paper, a methodological reference framework is developed for EQA that combines the fuzzy Del...

journal_title：Journal of environmental quality

authors： Wang X,Cao Y,Zhong X,Gao P

更新日期：2012-09-01 00:00:00

abstract：:Polyacrylamide (PAM) is applied to 400000 irrigated hectares annually in the USA to control irrigation-induced erosion, yet the fate of dissolved PAM applied in irrigation water is not well documented. We determined the fate of PAM added to furrow streams under two treatments: Initial-10, 10 mg L(-1) PAM product appli...

journal_title：Journal of environmental quality

authors： Lentz RD,Sojka RE,Mackey BE

更新日期：2002-03-01 00:00:00