Search Results - "HALL, L. W. JR"

Influence of Salinity and Dissolved Organic Carbon on the Toxicity of Copper to the Estuarine Copepod, Eurytemora affinis by Hall, L. W. Jr, Anderson, R. D, Lewis, B. L, Arnold, W. R

“…The objectives of this study were to determine the influence of salinity (2.5, 5, 15, and 25 ppt) at dissolved organic carbon (DOC) concentrations of 1.3-3.3…”
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An ecological risk assessment for the use of Irgarol 1051 as an algaecide for antifoulant paints by HALL, L. W, GIDDINGS, J. M, SOLOMON, K. R, BALCOMB, R

“…Irgarol 1051 is an algaecide used in copper-based antifoulant paints for controlling fouling organisms on the hulls of recreational and commercial watercraft…”
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Chronic toxicity of atrazine to sago pondweed at a range of salinities implications for criteria development and ecological risk by Hall, L.W. Jr. (University of Maryland, College Park, Queenstown, MD.), Anderson, R.D, Ailstock, M.S

“…The objective of this study was to conduct a series of 28-d partial life-cycle atrazine subchronic toxicity tests with sago pondweed, Potamogeton pectinatus,…”
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Development and certification of the new SRM 695 trace elements in multi-nutrient fertilizer by Mackey, E A, Cronise, M P, Fales, C N, Greenberg, R R, Leigh, S D, Long, S E, Marlow, A F, Murphy, K E, Oflaz, R, Sieber, J R, Rearick, M S, Wood, L J, Yu, L L, Wilson, S A, Briggs, P H, Brown, Z A, Budahn, J, Kane, P F, Hall, Jr, W L

“…During the past seven years, several states within the US have enacted regulations that limit the amounts of selected non-nutritive elements in fertilizers…”
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The influence of salinity on the toxicity of various classes of chemicals to aquatic biota by Hall, Jr, L W, Anderson, R D

“…The objective of this study was to review all available aquatic toxicity literature regarding the effects of salinity on the toxicity of various classes of…”
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Parametric and probabilistic analysis of historical chlorpyrifos surface water monitoring data from the San Joaquin River watershed: 1991-2001 by HALL, Lenwood W, ANDERSON, Ronald D

“…The goals of this study were to use both parametric and probabilistic procedures to: (1) analyze historical chlorpyrifos water column monitoring from the San…”
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The efficacy of a limestone doser to mitigate stream acidification in a Maryland coastal plain stream: implications for migratory fish species by HALL, L. W, KILLEN, W. D, FISCHER, S. A, ZIEGENFUSS, M. C, ANDERSON, R. D, KLAUDA, R. J

“…The objective of this two-year study was to determine the efficacy of an automated limestone slurry doser to neutralize acidic pulses and improve water quality…”
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Acute toxicity of diazinon to the amphipod, Gammarus pseudolimnaeus: implications for water quality criteria development by Hall, L.W. Jr, Anderson, R.D

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Spatial and temporal distribution of butyltin compounds in a Northern Chesapeake Bay marina and river system by HALL, L. W. JR, BUSHONG, S. J, JOHNSON, W. E, HALL, W. S

“…This study was designed to: determine dibutyltin (DBT), tributyltin (TBT) and tetrabutyltin (TTBT) bi-weekly for a four month period (June-September 1986) in…”
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Survival of striped bass larvae and yearlings in relation to contaminants and water quality in the upper Chesapeake Bay by HALL, L. W. JR, PINKNEY, A. E, HERMAN, R. L, FINGER, S. E

“…The survival of Morone saxatilis larvae and yearlings in the Chesapeake and Delaware canal area were evaluated using in-situ test chambers. Survival was…”
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Acute toxicity of cadmium and sodium pentachlorophenate to daphnids and fish by HALL, W. S, PAULSON, R. L, HALL, L. W. JR, BURTON, D. T

“…The sensitivity of various test organisms (Daphnia magna, Daphnia pulex, Ceriodaphnia reticulata, and the fish Pimephales promelas) to the reference toxicants,…”
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Acute and sublethal effects of organotin compounds on aquatic biota: an interpretative literature evaluation by Hall, Jr, L W, Pinkney, A E

“…The objectives of this review were to: (1) collect, synthesize, and interpret acute and sublethal organotin toxicity data in both freshwater and…”
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Effects of power plant coal pile and coal waste runoff and leachate on aquatic biota: an overview with research recommendations by Hall, Jr, L W, Burton, D T

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Monitoring dissolved copper concentrations in Chesapeake Bay, U.S.A by HALL, W. S, BUSHONG, S. J, HALL, L. W. JR, LENKEVICH, J, PINKNEY, A. E

“…Dissolved copper and selected water chemistry parameters were monitored for 11 months in Chesapeake Bay, U.S.A. Dissolved copper concentrations in four…”
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Toxicity of alum sludge to Ceriodaphnia dubia and Pimephales promelas by Hall, W.S, Hall, L.W. Jr

“…The acute and chronic toxicity of a large water works alum sludge effluent to C. dubia and P. promelas was evaluated. Mortality of effluent-exposed C. dubia…”
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Acidification effects on larval striped bass, Morone saxatilis in Chesapeake Bay tributaries: a review by HALL, L. W. JR

“…Acidic precipitation, acidic soils, and low buffering capacity of surface waters may produce acidic conditions in Chesapeake bay striped bass spawning…”
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Butyltin and copper monitoring in a Northern Chesapeake bay marina and river system in 1989 : an assessment of tributyltin legislation by HALL, L. W, UNGER, M. A, ZIEGENFUSS, M. C, SULLIVAN, J. A, BUSHONG, S. J

“…This study was designed to: (1) evaluate dibutyltin (DBT) and tributyltin (TBT) bi-weekly in the water column for four months during the peak boating season…”
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Ecological Risks of Diazinon from Agricultural Use in the Sacramento - San Joaquin River Basins, California by Giddings, Jeffrey M., Hall Jr, Lenwood W., Solomon, Keith R.

“…A probabilistic risk assessment was conducted to evaluate the likelihood and ecological significance of potential toxic effects of diazinon in the Sacramento –…”
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Chronic toxicity of tributyltin to Chesapeake Bay biota by HALL, L. W. JR, BUSHONG, S. J, ZIEGENFUSS, M. C, JOHNSON, W. E, HERMAN, R. L, WRIGHT, D. A

“…In chronic toxicity experiments with Chesapeake bay biota exposed to tributyltin (TBT), survival of Gammarus sp. was unaffected by 24 h exposure to…”
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Ecological risk assessment of atrazine in North American surface waters by Solomon, K.R. (University of Guelph, Guelph, Ontario, Canada.), Baker, D.B, Richards, R.P, Dixon, K.R, Klaine, S.J, La Point, T.W, Kendall, R.J, Weisskopf, C.P, Giddings, J.M, Giesy, J.P

“…The triazine herbicide atrazine (2-chloro-4-ethylamino-6-isopropyl-amino-s-triazine) is one of the most used pesticides in North America. Atrazine is…”
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