Hydrologic data for urban stormwater studies in the Dallas-Fort Worth area, Texas, 1992-94

Baldys, Stanley; Raines, Timothy H.; Mansfield, B.L.; Sandlin, J.T.

doi:10.3133/ofr96482

“…Although water concentrations of anthracene and pyrene in these streams are generally low (in the ng/L range), incoming stormwater runoff can have very high concentrations. Stormwater runoff from an industrial watershed (total drainage area, 85.5 acres) in the Dallas-Fort Worth area (TX, USA) has been reported to contain concentrations of pyrene as high as 43.0 g/L and of anthracene as high as 7.0 g/L [37]. Parking lot runoff can have especially high concentrations of PAHs.…”

Section: Discussionmentioning

confidence: 99%

Phototoxicity of Anthracene and Pyrene to Glochidia of the Freshwater Mussel Utterbackia Imbecillis

Weinstein¹,

Polk²

2001

Environ Toxicol Chem

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The acute toxicity of photoactivated anthracene and pyrene to the glochidial larvae of the paper pondshell (Utterbackia imbecillis) was characterized in the laboratory using two sets of experiments. Acute toxicity tests designed to determine the overall sensitivity of glochidia to anthracene and pyrene were conducted under simulated sunlight (ultraviolet [UV]-A = 70+/-0.5 microW/cm2 [mean +/- standard deviation]). The median lethal concentration (LC50) and median lethal dose (LD50) of anthracene at 24 h were 1.93 (95% CI, 0.87-3.02) microg/L and 1.94 (1.87-2.00) microg/g glochidia, respectively. The LC50 and LD50 for pyrene at 24 h were 2.63 (2.38-2.90) microg/L and 6.36 (5.82-6.94) microg/g glochidia, respectively. Acute toxicity tests designed to delineate the relationship between the rate of mortality and UV intensity were conducted under one of four different UV intensities (UV-A = 15, 31, 50, and 68 microW/cm2). Regression analyses revealed that time to death decreased as tissue residue concentrations and UV intensity increased for both compounds. Based on measured tissue residues, anthracene was 1.5-fold more potent than pyrene and 3-fold more potent than fluoranthene. The lower potency of fluoranthene is in agreement with previously developed structure-activity relationships; however, these relationships predict equal potency between anthracene and pyrene. These findings suggest that glochidia of freshwater mussels are sensitive to photoactivated anthracene and pyrene at environmentally relevant concentrations, that the time-dependent mortality of glochidia can be accurately predicted through evaluating the product of tissue residue and light intensity, and that species-dependent factors may alter the predicted relative potencies of anthracene and pyrene.

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“…Although water concentrations of anthracene and pyrene in these streams are generally low (in the ng/L range), incoming stormwater runoff can have very high concentrations. Storm‐water runoff from an industrial watershed (total drainage area, 85.5 acres) in the Dallas‐Fort Worth area (TX, USA) has been reported to contain concentrations of pyrene as high as 43.0 μg/L and of anthracene as high as 7.0 μg/L [37]. Parking lot runoff can have especially high concentrations of PAHs.…”

Section: Discussionmentioning

confidence: 99%

Phototoxicity of anthracene and pyrene to glochidia of the freshwater mussel Utterbackia imbecillis

Weinstein

¹

,

Polk

²

2001

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

The acute toxicity of photoactivated anthracene and pyrene to the glochidial larvae of the paper pondshell (Utterbackia imbecillis) was characterized in the laboratory using two sets of experiments. Acute toxicity tests designed to determine the overall sensitivity of glochidia to anthracene and pyrene were conducted under simulated sunlight (ultraviolet [UV]-A = 70+/-0.5 microW/cm2 [mean +/- standard deviation]). The median lethal concentration (LC50) and median lethal dose (LD50) of anthracene at 24 h were 1.93 (95% CI, 0.87-3.02) microg/L and 1.94 (1.87-2.00) microg/g glochidia, respectively. The LC50 and LD50 for pyrene at 24 h were 2.63 (2.38-2.90) microg/L and 6.36 (5.82-6.94) microg/g glochidia, respectively. Acute toxicity tests designed to delineate the relationship between the rate of mortality and UV intensity were conducted under one of four different UV intensities (UV-A = 15, 31, 50, and 68 microW/cm2). Regression analyses revealed that time to death decreased as tissue residue concentrations and UV intensity increased for both compounds. Based on measured tissue residues, anthracene was 1.5-fold more potent than pyrene and 3-fold more potent than fluoranthene. The lower potency of fluoranthene is in agreement with previously developed structure-activity relationships; however, these relationships predict equal potency between anthracene and pyrene. These findings suggest that glochidia of freshwater mussels are sensitive to photoactivated anthracene and pyrene at environmentally relevant concentrations, that the time-dependent mortality of glochidia can be accurately predicted through evaluating the product of tissue residue and light intensity, and that species-dependent factors may alter the predicted relative potencies of anthracene and pyrene.

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Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97

East¹,

Paul²,

Porter³

1998

1

0

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Data were collected at 10 stations in the Dickinson Bayou watershed near Houston, Texas, from March 1995 through February 1997 to estimate the concentrations, loads, and yields of selected nutrients that enter the bayou; to characterize the effects on nutrient concentrations of flow conditions, seasonality, and land use; and to identify nutrient sources (point or nonpoint) inferred from the occurrence and abundance of algal species in the benthic algal community. These data included rainfall samples, streamflow measurements, stream-water-quality samples, and biological samples, in addition to qualityassurance/quality-control samples.

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Hydrologic data for urban stormwater studies in the Dallas-Fort Worth area, Texas, 1992-94

Cited by 3 publications

References 0 publications

Phototoxicity of Anthracene and Pyrene to Glochidia of the Freshwater Mussel Utterbackia Imbecillis

Phototoxicity of Anthracene and Pyrene to Glochidia of the Freshwater Mussel Utterbackia Imbecillis

Phototoxicity of anthracene and pyrene to glochidia of the freshwater mussel Utterbackia imbecillis

Nutrient loading and selected water-quality and biological characteristics of Dickinson Bayou near Houston, Texas, 1995-97

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