scholarly journals Properties and acid risk assessment of soils in two parts of the Cherry River watershed, West Virginia

2005 ◽  
Author(s):  
Cara L. Sponaugle
Keyword(s):  
Risk Assessment ◽  
West Virginia ◽  
River Watershed

scholarly journals Pb Content, Risk Level and Primary-Source Apportionment in Wheat and Rice Grains in the Lihe River Watershed, Taihu Region, Eastern China

2021 ◽  
Vol 18 (12) ◽  
pp. 6256
Author(s):  
Lian Chen ◽  
Shenglu Zhou ◽  
Qiong Yang ◽  
Qingrong Li ◽  
Dongxu Xing ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Source Apportionment ◽  
Health Risk Assessment ◽  
Eastern China ◽  
Assessment Model ◽  
Primary Sources ◽  
Risk Level ◽  
River Watershed ◽  
Rice Grains

This study detailed a complete research from Lead (Pb) content level to ecological and health risk to direct- and primary-sources apportionment arising from wheat and rice grains, in the Lihe River Watershed of the Taihu region, East China. Ecological and health risk assessment were based on the pollution index and US Environmental Protection Agency (EPA) health risk assessment model. A three-stage quantitative analysis program based on Pb isotope analysis to determine the relative contributions of primary sources involving (1) direct-source apportionment in grains with a two-end-member model, (2) apportionment of soil and dustfall sources using the IsoSource model, and (3) the integration of results of (1) and (2) was notedly first proposed. The results indicated that mean contents of Pb in wheat and rice grains were 0.54 and 0.45 mg/kg and both the bio-concentration factors (BCF) were <<1; the ecological risk pollution indices were 1.35 for wheat grains and 1.11 for rice grains; hazard quotient (HQ) values for adult and child indicating health risks through ingestion of grains were all <1; Coal-fired industrial sources account for up to 60% of Pb in the grains. This study provides insights into the management of grain Pb pollution and a new method for its source apportionment.

Risk Assessment of Copper-Contaminated Sediments in the Tsolum River Near Courtenay, British Columbia

1996 ◽  
Vol 31 (4) ◽  
pp. 725-740 ◽  
Author(s):  
John Deniseger ◽  
Y.T. John Kwong
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
British Columbia ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Secondary Source ◽  
Aquatic Life ◽  
Mine Site ◽  
River Watershed ◽  
Copper Contaminated

Abstract Acidic drainage originating from an abandoned copper mine on Mt. Washington has given rise to elevated dissolved copper concentrations that may threaten aquatic life throughout most of the Tsolum River watershed on central Vancouver Island. Only sediments in the upper portion of the watershed near the mine site, however, have tested acutely toxic to the amphipod Hyalella azteca. Despite evidence of mechanical transport of copper up to 18 km down-stream from the mine site, the sediment-bound copper in the lower watershed appear to be highly stable such that the copper-rich sediments are unlikely to become a secondary source of dissolved copper. In addition to copper attenuation through dilution, extensive wetland areas in the lower watershed contribute significant amounts of dissolved organic carbon that form stable complexes with copper and ameliorate the toxic effects of dissolved copper. These observations imply that successful reclamation at the mine site is probably sufficient to assure acceptable water quality farther downstream.

scholarly journals Reducing Sediments from Skid Roads in West Virginia Using Fiber Mats

2009 ◽  
Vol 26 (3) ◽  
pp. 118-121 ◽  
Author(s):  
Shawn T. Grushecky ◽  
Ben D. Spong ◽  
David W. McGill ◽  
John W. Edwards
Keyword(s):  
Soil Erosion ◽  
West Virginia ◽  
Research Study ◽  
Sediment Traps ◽  
Native Grass ◽  
Fiber Mats ◽  
River Watershed ◽  
Grass Seed ◽  
Road Section ◽  
Native Seed

Abstract A research study was established to test the effectiveness of fiber mats and native seed mixtures in reducing soil erosion from newly constructed skid roads in the Elk River watershed in central West Virginia. Six road sections received fiber mat and native grass seed and were pairedwith randomly selected sections of equal grade receiving no treatments. Silt fences with sediment traps were constructed at the downslope terminus of each road section. Sediments were collected from silt traps three times during summer 2005 and 2006. Over the 2-year study period, sedimentswere reduced by 88% on skid trails treated with fiber mats and seeding. Our findings suggest that the use of fiber mats has the potential to significantly reduce sedimentation from skid roads in West Virginia.

Cadmium mobility in sediments and soils from a coal mining area on Tibagi River watershed: Environmental risk assessment

2014 ◽  
Vol 265 ◽  
pp. 280-287 ◽  
Author(s):  
Evgeny Galunin ◽  
Jeferson Ferreti ◽  
Iago Zapelini ◽  
Isadora Vieira ◽  
César Ricardo Teixeira Tarley ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Coal Mining ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Mining Area ◽  
River Watershed ◽  
Coal Mining Area

Risk assessment of agriculture impact on the Frío River watershed and Caño Negro Ramsar wetland, Costa Rica

2017 ◽  
Vol 25 (14) ◽  
pp. 13347-13359 ◽  
Author(s):  
María-Luisa Fournier ◽  
Silvia Echeverría-Sáenz ◽  
Freylan Mena ◽  
María Arias-Andrés ◽  
Elba de la Cruz ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Costa Rica ◽  
River Watershed ◽  
Ramsar Wetland

scholarly journals A LANDSLIDE RISK ASSESSMENT PROJECT FOR THE MOUNTAIN STATE OF WEST VIRGINIA

2019 ◽  
Author(s):  
J. Steven Kite ◽  
◽  
Maneesh Sharma ◽  
Kurt Donaldson ◽  
James A. Thompson ◽  
...  
Keyword(s):  
Risk Assessment ◽  
West Virginia ◽  
Landslide Risk ◽  
Landslide Risk Assessment
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